Spark smoothing hp tuners 75:1 In the spark advance table the cylinder air mass only goes up to 1. I've tried pulling timing in the cells that it's happening and I'm still getting way more spark than I'm asking for. So far I have the car idling half decently around 850rpm and the idle adapt spark There's more to it than that. Long story short (sort of), after putting a medium cam, 42#injectors, and FBO HP Tuners GM Gen V training course starts with the basics of downloading and installing the software. The car is a Holden VE SS Commodore auto (Pontiac G8 The potential is there and that's evidenced by the fact it's smooth when crawling at low idle rpm with the TC locked in 4th gear and another thing is the engine is also smooth during initial start up before it's warmed up and within about a min or 2 starts jumping timing around then you start getting vibration and surging. Vettepartz. 5 is this a problem. Those two years likely offer the most recent calibrations. 09-24-2023 #3. "2 x 0. Increase and smooth all of both tables. When accelerating hard or even "briskly", there is a spark drop when getting back on the throttle after the gear change. I attached my tune, if someone could please help me find it I 1. If the 3D Surface graph looks choppy, click on polynomial smoothing ONCE. Help :banghead: 52312 Hello all, I'm trying to sort out an issue when part throttle. Discuss all things tuning in this section. 2008 Pontiac G5 2. 12 airmass rows by 1400 to 2800 columns to 5. How do you know when to stop smoothing because you can keep banging away at it and the numbers keep changing - is it with the 2D/3D line graphs? If you are tuning a factory LS engine using the technique of reflashing, idle speed tuning may not be something you need to give too much consideration to. 73 Moser 12- Bolt. The various thresholds determine when the VCM will modify the knock learn factor. So always subtract main spark from optimum spark before "tuning" it, then add main spark back in when you are done. Fill in the blanks here. You do not have enough adjustment range in gear and coast. also are ther eany other tables or formulas that can explain it better?? -Scott - 01-22-2006 #2. Trying to isolate the problem myself but new to the tune game. View Profile View Forum Posts Private Message Potential Tuner Join Date May 2024 Posts 9. Turning spark smoothing off cures this problem BUT HP Tuners Support (foff667) Join Date Jun 2004 Location Hailing from Parts Unknown Posts 28,496. I am running E85 and around 14-15psi boost. I have a 2002 tahoe 5. Why would this be? The engine does have a 240 cam and L92 heads, but it still doesn't sound like a healthy cam idle at times. I have a rapid timing oscillation under light load, level surface driving, in the 800-1,300 RPM range where timing jumps between 35 and 5 degrees many times in one second. And we need more information about your secondary spark table problem. Turning off Spark smoothing didnt It seems to be rising about 5-6 degrees at its peak around 3100rpm, then falls back to a smooth line. Courses. It seems as if i am getting a few more degrees advance than the main spark table is calling for. I have a 2007. RPM: This is the minimum limit for spark advance during any retard event spark tuning and cylinder airmass; Results 1 to 8 of 8 Thread: spark tuning and cylinder airmass. For the RAF table, I have set all values to 20 g/s. At least, it should be. My engine is a early 2007 4. The VCM scanner software is used to illu Every one who tunes coyote engines says target a richer lambda and increase spark timing and that is how these engines make the most power. The spark source seems to be constantly changing from Base - borderline - Tipin. To obtain a smooth idle, I've cut the Idle Adaptive Spark Control in half for both Overspeed and Underspeed. Not sure what the 98's had. I have used some diy I found to tune and set the timing Hi guys, I have spent countless hours trying to nail down a good, concrete method for tuning gen4 vehicles. Best bet is to just modify one of the MS tables (smooth it out, set it how you desire) and then copy it on to all MS tables. -Carl 07-11-2012 #5. Show Printable Version; 04-21-2023 #1. Smooth the entire selection: Smooth the selection only using a horizontal pass: Smooth the selection only using a vertical pass : When using the smoothing functions, the level of smoothing will be determined by your current precision. did you disable spark smooth under spark advance all the way to the right? give that a try 05-21-2013 #12. The amount its using is the max on the mbt table and that's the next thing I was going to mess with but I'm still pretty green at this and A 2001 or 2002 Silverado 2500/3500 use the 6. 10-03-2024 #3. Direct copy of my smoothed Main Spark tables, to the 4 OS tables, + reworking the 600/800 rows, & 0/215 columns, to make it like the Main Spark tables. The VE and Spark advance tables need work. I have my High octane table copied to my low and am running it in speed density, idle fueling is set very well and I have added some spark at idle using the main spark tables. Cams over 15º overlap, idle 950-1100 all cells across the board, add 3-4 g/sec to idle airflow across the board both in P/N and in gear (HPT > Engine > Idle > Idle Airflow > Base Running Airflow), add 6º of idle timing 1200 rpm and HP Tuners GM Gen 4 Training Part 26: Spark Timing Modifiers 32m 2 comments Follow along with lead instructor, Jeff Evans, as he walks you through the spark timing modifiers such as PE/COT, IAT, ECT, EGR, and many others. This guide is for airflow and the adaptives only, so I am going to assume fueling is already dialed in if you I've been playing with the HP tuner on my 5. After performing some logging on the E38 used in the Holden VE SS (Pontiac G8 GT), I have determined what is causing some of the poor throttle response issues on the factory tune. BigMike42. Been working on the low RPM driveability and have been plagued with low RPM jerkiness (see middle white plot - looks like a saw blade), like puttering through the home neighborhood or in a parking lot. It is smoothing the spark from the non-PE to PE area and maybe the engine just wants a little less spark during the transient. It's an "on/off" option. oakley6575. 01:19 Car has been to at least 3 different places and some odd stuff found. This has recently been calibrated and is most obvious as throttle is clamped to around 30-40% for a few seconds on tip-in from a dead stop. 8:1 CR, 90 mm My Whipple 2018 Mustang actual torque suddenly increases 30-40 seconds after startup and I am trying to determine the cause so I can tune it out. I can see the Throttle Control source changed from "Idle" to "Pedal" mode when pressing on the accelerator pedal. All these together reduced the issue but it still persists a bit. Anyway, as far as a base spark table to start with would it be better to just load a stock 99-00 table from the get go? My engine is so far from stock its not like the 02 BTR Stage 3 turbo cam install in LS3. An example is in the attached log. 01:04: In the spark advance section we have the high octane table and unless your vehicle has experienced significant persistent knock, I really don't expect you to get into the low octane table a great deal. When my compressor cycles with the AC on low/fan speed 1/2 I would get random Tm timing dips. I played with the idle airflow and speed until it would idle fairly steady, except every 10 seconds or so the idle drop way down and then recover. You generally REMOVE spark. My car pulls 5-8 degrees of timing on upshifts and I was wondering if this has It lists various spark tables for different engine operating conditions, including base spark tables, idle spark tables, and spark correction tables for factors like air-fuel ratio, intake/exhaust Examples of fast path torque control include retarding spark during gear shifts (mostly automatic transmissions), advancing spark at idle when an accessory load comes on, Table spark value can be from -25 to +55 degrees spark. My delivered torque seems to stay pretty flat during this stage and I picked up the slighest KR of 0. C6 Scan & Tune - HP Tuners assumptions, tuning for mild cam - It has been some time since I've added a stage 2 cam (224/228, . GMVette. Add 20, to the last column, the 215 LOAD column. It has done this from day one since I installed the TSP Stage 2 camshaft. Smoothing out the 2-1 in automatic cars Cammed autos sometimes may have an issue going 2-1 coming to a stop. Not quite sure what it needs at this point. It falls eventually, especially if I blip the throttle a hair. Minimum Spark Advance. 23 beta with some new stuff: Engine, Torque Management Tip-In Limiting - disable to remove any tip-in torque limiting, for M6's also disable Spark M6 Smoothing. Off-Topic Threads / Posts Last Post. - Set idle spark drive and park to match spark tables so there is no bucking on the transition set at Base spark. Easy to disable. I've tuned most beginner stuff, TQ mgmt, Virtual VE tuning for MAF low, and trans settings. 2001 Silverado 5. During the first 120 seconds of engine run time, the values in the 0 through 120 seconds rows can be in use. I noticed when ECT is cold I knock excessively. 2 tune, I cannot get the truck to stay running without throttle. GMCfast. 630" . If so, disabling spark smoothing cured that in my car. I'm also running it in SD mode without MAF sensor. Spark Smoothing Disable and Tables for 98 F-bodys; Results 1 to 2 of 2 Thread: Spark Smoothing Disable and Tables for 98 F-bodys. Is this not the case? And why do you say the bucking wont go away? The only time the car bucks is this is causing alot of problems on our cammed Z06, is there a way to completely turn off torque management advance, as its currently the main reason for the bucking/surging other than the mechanical cam surge and is evident in timing dips. when taking off from a stop tq mgt adv likes to play havoc on my spark and cause these spikes in the timing causing the car to surge like crazy I am tuning a 2010 camaro ss with an ls7 swapped in which has a large cam 24x/25x. ksa HP E38 Hp tuners bog/stall issue General Tuning Discussion Forum Posts. Also zero'd entry/exit spark up to 1536rpm in those tables. On my personal car, I keep both tables the same as I prefer the consistency of the crackles and that I can consistently replicate them with throttle modulation when wanted. It lists various spark tables for different engine operating conditions, including base spark tables, idle spark tables, Lowering the Max Torque Delta, Max Torque Bias, and Max Torque Loss to 30 lb/ft under Spark->Advance Spark Smoothing settings helped my tune reduce bucking at low RPM and light throttle. The primary way it does this is to calculate the In the log file with the spark smoothing disabled, you can see that the spark advance is rock steady at 22 degree. 2L (main oil seal became a crunchy Autumn leaf, RIP) HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2 HP Tuners Owner. View Profile View Forum Posts Private Message Senior Tuner Join Date Aug 2010 I was under the impression that M6 spark smoothing made the transition from coastdown spark to main spark/idle spark table not quite as abrupt. 08 to 1. Unless I've got something somewhere limiting. The stock humidity spark table is pretty decent for stock heads/cam cars and I leave part throttle alone and make the WOT areas smooth. First glaring thing was having a ZR1 map sensor and 2 bar MAP settings in it :banghead: It snaps to around 1800 if you push clutch in, and around 2100 if you just put it in neutral which is odd because throttle follower table is the same in either??? At 3:56 you can see in gear at 1200 rpm, go 2012 ZL1 with a 9. Set Abuse Mode RPM, Abuse Mode TPS and Abuse But in a nut shell, I tune the cars spark advance for maximum performance in humid air, and use the humidity spark to pull spark only, never add. We walk you through setting up the correct VCM scanner chan I have a strange problem with this bloody car. 8L camshaft. im not sure what it does the 3800 have Manual spark smoothing options like a lot of other cars? I haven't been in a 3800 ecm for over a year. 588 , 114+4), upgraded valve train, Headers, Intake and the usual items. 3 Vincie tow cam. View Profile View Forum Posts Private Message Visit Homepage An example of this is building a knock retard histogram and importing it into your main spark tables. 2. Spark smoothing is disabled in the tune. I would think that I would be above 22-23* in high rpms being on e85 that's 83% ethanol. 2017 Silverado LTZ. Trans, Torque Management Tip-In TqMgt Flare 2008 LS3 Corvette M6, BTR 225/238 cam 50k miles E50 Fuel trims have been tuned in VVE and combination VVE MAF. You should smooth the primary ve table and copy the rows that apply over to the secondary ve table. 36 over to the High and Low Octane tables in their attempt to allow for a smooth transition back to the Idle Spark tables when coming to an idle. Completely disable DFCO and test. I purchased a remote tune last year with HPTuners and my car has ran pretty well! I asked for a conservative tune and it definitely isn't anything aggressive. With spark smoothing enabled it makes the car somewhat drivable in parking lots but makes timing curves very choppy and getting steady state data for airflow models impossible. Disabled M6 spark smoothing. On the scanner, Im seeing the spark fluctuate wildly. To increase the effected area of your smoothing, increase your precision. the only thing i have ever seen is the M6 spark smoothing sometimes grabs timing on shifts (as you close & open the throttle). The main issues I am coming across is getting the car to idle consistently. The more jagged these maps are, the more odd and "notchy" performance is likely to be "Spark Smoothing works to reduce rapid accellerations and decelerations of the engine to dampen drivetrain oscillations. Join Date Mar 2003 Posts 4,860. Also don't see any real explanation on how this affects Main Spark Advance (Lo/Hi Octane) or works with or without (dunno either way), and how it works with smoothing out bucking. The issue happens when I decelerate (in gear) to under 1500 rpm, then kick in the clutch. * A. Excessive spark is pulled when lifting the pedal under light load/low speeds causing torque to go negative and it's pretty annoying to feel the lurch forward and hear the backlash in the drive train. In the simplest terms, any signal New to hp tuning and I?m working on getting the idle dialed in, car runs and drives ok but want to smooth out idle I see anything from 28-16 degrees of timing idling if I rev it up sometimes is this normal Lower your over/underspeed spark corrections tables if Should I change this if I have changed my idle timing as well? I have a cam and whenever I am coasting down from highway speeds (~2krpm) the car seems hesistant/slow in letting the rpms drop. I am just working out the last of the bugs in the car. Also 24 around idle is too much, it may feel like a misfire or jerking. OL with a T56 and from what I understand the stock algorithm might be too must going from stock to a 236/248 @112 M6 Spark Smoothing: Enables/Disables spark adjustment/smoothing for M6 transmission. View Profile View Forum Posts Private Message Tuner Join Date May 2003 HP Tuners LLC; Top; All times are GMT I am looking at the 2011 Corvette LS3 stock idle timing table (Idle Base Spark Advance). Show Printable Version; 01-18-2005 #1. They are subtracting the Main Spark values from the Optimum Spark values to find the "urgency" of each cell. 7. Join Date Mar 2003 Posts 50 RPMs, it made it idle rough and it would surge about 100 or so RPMs. HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. Stock small duration 4. Since my engine is probably more like an LS6 rather than LS1 I thought maybe I should try the base spark table One other thing that could be affecting it (Manual trans only) is the Manual Trans Spark Smoothing function of the PCM. As we all know, when sitting at a red light just stopped, that I'm having trouble with my BF turbo maintaining a smooth ignition curve at WOT. Hey guys I am new to the forums and to tuning. Cant get the engine to rev up a bit and hold steady rpm below 1700 RPM. I count sheep in hex 03-26 One of those options are the main spark tables so let's go back to VCM Editor and take a look at those. 06-04-2020 #6. I'm looking for the spark tables at idle for my 2013 Challenger RT. People disable it becuase on hard When using the smoothing functions, the level of smoothing will be determined by your current precision. But in the car you feel a lot of bucking. When sitting at a red light, my car will sometimes jerk back and forth while in drive and me standing on the break. The document describes the GM engine spark control system. Lounge. Watch the video above, and start over and see if you can get the VE table to be much Smoothing spark advance with smooth transistions. V6 Spark Limiter (V6 only) High RPM Threshold: Above this RPM the VCM will set the spark to You can find it in the engine spark advance section in HP Tuners. 2 on my air fuel gauge. it did act a little wonky this morning on the stone cold start at 60F ambient. Frame 1668 and 2084 is the best example. MMGT1. FIC 60lb Injectors Ive checked the data sheet and it looks to me that the Then burn that in and start again tuning. We take an HP Tuners Tech Docs - Free download as Text File (. It seems to pull upwards of 4 degrees at throttle stabs and a smaller amounts as you are driving. When driving manual mode the car stalls frequently when cruising to a stop or slowing down. Show Printable Version; 11-13 if at WOT 25º makes 425 hp and 29º makes 427 hp, stick with 25º. 5 Silverado that I swapped the 5. Most large cams prefer around 15 degrees in the idle spark tables, whereas smaller cams between there and low 20s. by . It's basically a cam and ported heads. AnotherUser. 10-05-2011 #6. Page5. Smoothed and reduced my spark across rpm ranges 1000 - 1400 (25* - 27*), and increased amount of fuel down low. smooth. . Is there a different name in the channels for it? 01-01-2019 #2 2016 Camaro SS LT1 Flex Fuel sensor LT CAI 100MM TB MSD airforce intake cat delete Car has a 100rpm band at 6000RPM where TQ Timing advance pulls 6-8 degrees of timing repeatable. Latest tune and logs attached. 5 degrees timing then straight to 25degress, then back to single digits. RPM-Motorsports. I used the info from BLUEGOAT06, to understand the basic principles of how the ECT spark correction and modifier table work together, it was huge help. comCheck out the latest tuni Try logging "ETC Tqmgt type" "Fuel cut Tqmgt type" and "Spark Tdmgt type" in the table display. That could be decreased a bit and might help some with the chasing a drivability problem on a 2017 Camaro SS 1LE M6 that I did Whipple, Heads, Cam, LT4 fuel system, NW 103, LT headers and DSX low side, Monster clutch, rods and pistons and all the other supporting mods. Looked, and looked again, but never found any clear and concise explanation of what Idle Spark Advance really is (in lamens terms). In addition, we explore how to dial in the direct injection operation as well as the may want to eliminate adaptive spark while tuning for airflow, but then re-enable it (or even more) for HP Tuners Owner. 55 load, 500 to 1000 RPM you can add 5*, at 1500 you can add 10*. Don't go over 0. 2 L92 from an Escalade. View Profile View Forum Posts Private Message Potential Tuner Join Date Aug Got the idle in park a lot smoother, albeit with a little bit of oscillation still in the idle (computer or engine hunting) but I noticed it wasnt spark or air related (must be the 02s switching with closed loop turned back with STFTs only to watch the idle in open loop in park). 3 - 209/217 cam, HP Tuners LLC; Top; All times are GMT -5. View Profile View Forum Posts Private Message Advanced Tuner Join Date Oct 2006 Posts 277. Throttle desired angle is going to zero, I have min throttle at 1 degree, so it will idle, then rising as it transitions to idle controlled spark. HP Tuners GM Gen V Training Part 18: Spark Timing & Modifiers walks you through how the spark timing tables and modifiers work together to deliver a spark ev Yes really need to share a log as suggested but I noticed your Hi/Lo Octane Spark tables are 25* and the Idle Base spark is 25*, shoot for base idle spark of 15-18*, keep your Hi/Lo table idle areas 8-10* higher than base idle. edcmat-l1. Show Printable Version; 02-06-2005 #1. This method uses the stock narrow band oxygen sensors which are not that accurate for this area of Just like the thread says. I'm working running into an issue with my advance being too high around 2800 to 3200 rpms and I'm picking up slight knock. burnrbr. the optimum spark has been referred to as an "urgency table" by the guys over at HP Tuners forum. I tried changing the ETC Scalar . that are used in determining the delivered engine torque based on the the given operating conditions, not just spark relative to the mean best torque spark table. 80 = 1. 04 to 0. Don't pay much attention to the idle tables, as later down the road I will explain those, and for this demonstration I simply used Hi, In my street rod I have a LS1 engine from a Camaro 2002 with LS6 cam and LS6 (243) heads. 3 out of with a 6. It actually idles smoother with the stock numbers in place, so I set it back. 20 but in my log it goes to 1. I've had this issue with other aftermarket LS cam swaps. 12 airmass rows. I believe it has to do with the AC bump torque spark smoothing and AC TM. jpg. This must be dyno proven even though it goes against normal internal combustion engine tuning. 08 to approx. I haven't read any further into the tuning guide, so I can't comment any further at this time. log:-RPM Limit Type - Spark TqMgt Type - ETC TqMgt Type - FuelCut TqMgt Type-ETC source Might just be M6 spark smoothing though . 02-09-2007 #7. I moved the low airmass and MAP values (decel columns only) in each table up such that the expected torque for what was previously the 0 degree spark table were now the values for the -10 table, the 10 degree spark were now the values for the 0 degree spark table, etc. - Contrary to purpose of spark smoothing, I've had better results with it disabled on my manual car. The filter is used to smooth the signal so that momentary spikes in pedal position do not create too much fluctuation in engine output. Last edited by BigMike42; 06-08-2016 at 02:13 PM. 91 gears, long tube headers, K&N intake, And a Texas speed 229/236 . after playing with it for a few days my changes definitely effect my cars throttle response, however it seems as tho no matter what changes i make it triggers REP. I have added my scan parameters to show how to log Spark advance over and under specific ECT's. HP Tuners LLC; Top; All times are GMT -5. Obviously the 01-02 cars only have 19* of advance in the WOT area compared to 28* in the 99-00 cars. 36 cyl air limit at only 2200 rpm. 0. View Profile View Forum Posts Private Message Advanced Tuner Join Date Mar 2018 Posts 451. At one stage it went from 1. Nevermind, I see you covered AC SPARK 263. The spark timing increases suddenly by 7 to 15 deg, NOT coincident with it coming out of CSER mode. I have tried, spark smoothing disable, VTT up and down, moving peak torque up and down, moving driver demand tables up and down, everything I can think of and it still does it in (HP Tuners speed density enhancements disable this behavior). good move cause idle is very stable and doesn't hunt at all. JTC Performance - Authorized HP Tuners Reseller Remote performance tuning. The timing dips you can see are most likely from spark smoothing, turn of spark smoothing and do another log, I'll bet all the timing dips disappear. Definately looking up in the coastdown table. Turned spark smoothing off. The car is idling good but I want to make sure I am This thread could really be titled "How do I get my idle to hang" and that would probably answer my questions. From 1500 rpm or higher, it returns beautifully to idle. Forum Actions: View this forum's RSS feed; Forum Statistics: Threads: 3,095; Posts: 21,317; Last Post: bench programming. 40+ deg is way too much timing and will cause the cam surge, copy that area of the base idle table to the main spark tables and smooth the transitions around 1200-1800 rpm. HP Tuners GM Gen V training course starts with the basics of downloading and installing the software. When arguing with an idiot, make sure he isn't doing the same thing. Still idling low until spark gets controlled by idle. This the log. 68. View Profile View Forum Posts Private Message Visit Homepage Senior Tuner Join Date Feb 2006 HP Tuners LLC; Top; PCM Tuning Process Flow 1. By doing this maybe it will solely reference the main spark advance table and be more stable like a vacuum advance distributor. Hi guys, I'm trying to sort out my last little glitch in using TQ based decel and return to idle. hpt. 08-0. When you’ve got a standard engine, provided your mass airflow sensor calibration is correct, you should be set and the stock idle configuration shouldn't need any work. This is a VERY common myth. Thread: Spark tuning. I'm not seeing any knock activity under high loads at WOT and the most spark I have in these areas is 24* will I benefit from adding a degree or 2 in most of the areas and smoothing the table then checking for knock or is there a rule on " how much is too much" before I will lose power due to Any time I go to smooth or interpolate the transitions it seems like the truck wont pull as hard, like almost back to stock. txt), PDF File (. Go higher or lower in the RPM to suit your needs. MM heads, 240/252@50 solid cam, 12. Am i just in the process if finding out what its limits are. Note: HP Tuners is not responsible for any damage done to your vehicle by using any of the tunes found in the Tune Repository. Disable M6 spark smoothing. I noticed that when this happens the timing is like 10 degrees. The air fuel was at 11. rcmikey. I made a few adjustments based on what recommendations ive seen from other users. HP Tuners LLC; Top; All Join Date Aug 2021 Location Somewhere smoothing your VVE table Posts 718 Since my car would continue to pull timing until it hit around 0 degrees. You can control the rotation, shift, zoom of the 3D graph as what is the real use of this M6 spark smoothing and what does it do. 68 cyl air scale also with just changing the high octane table. It goes all the way up to 1600 RPM. If you used Big Mikes Idle Tuning guide you should be able to dial the idle in fairly easily. 8:1 CR, 90 mm ported FAST, Exo-Skel Well of course the absolute best and most "correct" way for spark tuning is to find MBT on a dyno but as I can very well understand not really always an option for most. Much appreciated. you need to make the top left corner of the main spark tables the same as the base idle spark and the coastdown spark tables. Sulski Performance Tuning 2000 WS6 M6 - LS6 (long block, refreshed top end), 10. This rarely happens in auto, but will I have a couple of questions on tuning spark advance. Resulting in a zero difference from the Main Spark table, up to 100 LOAD, I have never messed with ECT before, but was doing some searching and found that i can get better performance/throttle response by tuning my ETC. the main spark tables are the maximum spark that the engine will allow at any given RPM/Load combination. you've lost torque and horsepower by advancing as far as you did. A proper curve still develops because the High Octave main spark table has its Y axis based on load ass well. Strange issue happening in recently tuned L9H (2009 Escalade). I cant seem to find any tables for this, I tried adjusting the Part throttle table with no luck. IL/Jeddah. elitetunedschool. Its a slower reacting correction whereby the spark correction is a much quicker. Spark timing the map looks very smooth. Swift and smooth. , all the other tables changed to . But changing the Minimum commanded spark smoothing the table and bringing the numbers up a bit made a larger difference in the shift quality than I expected. Here's the details though. Just my opinion. 4. 01-11-2012 #4. 2007 Trailblazer SS E67 LS2 4l70e AWD Long Tube Headers with High flow cats Full exhaust Ram air intake unknown Camshaft 93 octane Hello all. It fires immediately and can maintain idle, it just feels a little too rough and I could really use some help. 0 with a P01. We take an in-depth look at exposing the spark timing Tuning first cammed car today and after reading through the sticky's on idle tuning I found that your supposed to add some timing during idle. 176 up to 5250 then lean out slightly to 8000? In a manual car, going a little higher on the spark could smooth it out a bit. 6* reduction instead of the entire 2* If the table has a 0, then the Considering your "Act Spark Cyl 1" is pretty smooth and giving you a decently smooth timing line, not so sure you want to adjust out that adjustment spark, without it you would be at 17-18 degrees of timing. sounds good for 232/234 but me mate (owner) wants more of a chop. The Idle is a bit smoother but the cam surge is still there. HP Tuners does not validate nor approve any tunes that But you will have smoother 0% throttle to light throttle transitions if you keep the long term table values higher in some area's than the base minimum table. I have been picking away at my tune as time allows and it is really very good from what I can tell. It seems to come and go and not consistent, better when the car is cold. I was just wondering what you folks use for idle timing Today was no exception. 12-16-2009 #2 blacklightning744 That sounds very interesting, especially if the entry spark and exit spark are waaay off (not infront of hp tuners at the moment). Just recently I changed the Idle Spark Advance from I added spark to the borderline op table trying to get it to add more spark and it wont. Thank you for the feedback! Do you keep PE at 1. View Profile View Forum Posts Private Message Tuner in Training Join Date Mar 2011 Location Chicago. 40 the timing is set to 13 degrees. " 04-20-2012 #5. 09 RY Cobalt SS Coupe - 19K miles - Bolt ons + 7163 ZFR, HP tuned on ethanol Janky Monkey Tuning Call or PM for tuning solutions. What's happening is spark source is jumping from borderline to torque control when shifting into the next gear, sometimes this doesn't happen and the car will follow the borderline tables just fine but other times it falls flat and timing drops, this only happens in part pedal scenarios. 615" cam, AEM wideband. After 120 seconds, the it controls spark so that RPM doesn't change rapidly, designed to prevent hopping on manuals during low speed driving or gear changes. Hi, on some occasions my LS2 sounds like it's missing on idle. This is why advancing on the street and monitoring the Is there a general rule or guide guys are using to tune their spark tables. So looking at rescaling the spark tables. i disabled spark smoothing and all the timing came back. Turned that off and there was 0 Torque Management Advance for my whole log. 01-06-2018 #40. But I started from scratch not too long ago and go it pretty smooth, however I did not disable the Been trying to figure this out for a while. 08-07-2015 #5. Minimum Spark Advance vs. 3L, 2007 Avalanche for about a month. I have since made it a mission to research and learn how to do my own tuning for my car and have spent the past 3 weeks studying EFI tuning courses as well as Hey all. You added it to the fuel economy table so the above . I noticed that the table in spark, advance, Spark Correction, AFR Correction, calls for this. 581 /. Idle base spark advance also. 5 load, VCT has 70* overlap 1000 to 2000 RPM with spark advance as low as 9*. Smooth all rows/columns, from 100 LOAD, to 215 LOAD. I just happened to see a few bins with some weird plots for spark advance for drive and in park in the idle spark advance section. 4 during it as well. And then after making further changes to the primary ve table you should again update the secondary ve table. 3. Show Printable Version; 10-21-2006 #1. WOT PE TUNING – Do this only AFTER all LTFT's are BELOW 0. Some cars have random rows of 3 degrees at WOT. fast toyz lid, descreened MAF, smooth air bellow, prc springs, Torquer V2, jet hot LTs, hooker ory, LM1 powerflo, ls7 clutch, 42 ford greenies, 3. Join Date Mar 2003 Posts 4,861. Tuning; GM V8 Tuning; GM V8 Tuning - Engine, Gas (Gen 3) Timing question -- what is the M6 Spark Smoothing guys new 2. Blog. Everything is off in my torque management on my file, but no luck. All those sharp mountain & valley transitions must be sapping power. the official name for it is "RPM Derivative Spark as I don't trust that the smoothing algorithm will smooth things the way I want (like if I go and decrease the spark in one cell, the smoothing will drag that cell up 8/9 of the way back and drag the neighbors each down 1/9. In the other log The current SPARK SMOOTH settings are for a stock 7. Go higher with the number to make less aggressive pops. Thread Tools. After installing a bigger cam I have read that increasing the idle spark timing is helpful in order to get a smoother idle. I do not have knock issues when at operating temperature. Mods are 3. Same with fueling, smoothing VE with smooth transitions general helps the majority of the time. When paired with the smooth curve of the multiplier table your timing adjustments will be seamless. Smoothing; Results 1 to 2 of 2 Thread: Smoothing. But at low RPM there can be some large jumps from one cell to the next- see if you can smooth that out. tuning, emissions HPtuners dealer and tech support email= [email protected] 08-11-2024 #10. News, products, problems and results. Hi, I'm trying to determine what parameter is causing the slow ramp of spark advance under light or moderate throttle openings when transitioning between idle and main spark tables, or coastdown and main tables on the E38. I'm pretty sure all the torque management is M6 Spark Smoothing; Results 1 to 2 of 2 Thread: M6 Spark Smoothing. IDRIVEAG8GT. Let us know if it works out. Or something like that). So I know its switching to another table when it idles. It contains main spark tables that interpolate between high and low octane tables based on knock detection. Spark tuning In the scanner the top right side table has a +, HP Tuners GM Gen III part 12 takes a look at the spark timing modifiers such as IAT, ECT, EGR, Fuel/Air and others. It feels like a flatspot as soon as you get back on the gas, and I'll be buggered if I can find where this spark drop comes from I have attached the tune and a log. But searching thru the posts here & LS1tech I see some say to smooth, & others say don't. When done they should match and they should be smooth. I am trying to adjust some settings in the idle to make it more smooth and bit better sounding. At WOT at about 5500rpm i am getting about 27* advance but the main spark table is only calling for 24* i guess there is an adder table Getting lot's of KR under light load to heavy load, when manifold vacuum is high. Not much, but noticible. 8L LR4 cast iron block. More importantly, people have no idea how it operates, and how to control it. View Profile View Forum Posts Private Message Tuner HP Tuners LLC It seems to me that the car should run better if I smooth out the VE & Spark tables. View Profile View Forum Posts Private Message Advanced Tuner So I have an 02 Camaro with a MS3 cam, PRC 225 heads, and Fast 102. as ECT comes up to operating temperature. I used to have a turbo swapped cobalt ss so I am not new to hp tuners but this will be my first time playing around with the Camaro. edit: I logged the AC active flag to verify. 0L *Previous LS7 with the MSD Intake responded perfectly with the plenum volume set to 1000cc, so same has been entered here. Idle will keep dropping past about 500 and sometimes catch itself, but then other times will completely stall out. Anyone know how to tune for this? Tqr II (232/234 113lsa +2), ETP Heads, FAST 90/NW 90, 42#SVO, 25% Powerbond Pulley, FLP catted LT's, B&B Tri-Flo, QTEC, Smooth bellows, Fast Toys 85mm lid & Grn Filter, Lou's SS Smoothing; Results 1 to 3 of 3 Thread: Smoothing. Mainly under light throttle applications, I have noticed that the spark advance when going between Idle Base Spark, Main Spark and Idle Coastdown Spark, is slowly ramped Hi guys I have a 2010 LS3 Camaro. -Long tube 1 3/4 tube headers -88mm SSR throttle body -LS2 intake, fuel rail -Full size pickup cold air intake (works more like a hot air intake) IAT temps over 114 at idle Welcome to the HP Tuners Bulletin Board. All of my problems point towards Transmission TQMGT that doesn't exist in HPT. I did a scan and the spark advance at idle fluctuated a lot. 10-19-21 2002 Tahoe Flex add spark to alcohol mod. 55 lower pulley now hits the 1. If torque management is engaging on the closed throttle downshift, what happens is your idle It was all caused by M6 Spark Smoothing being enabled. 646"/. Now rescan, and do step E. This will smooth out the table values and provide a more crisp throttle response. I am trying to dial in the idle on my truck but I am struggling to have it idle on cold start/warm start without feeling a little tooo rough. HP Tuners GM Gen III part 16 takes a look at how the idle spark control works within the GM ecu. 2010 GXP Maloo ute, LS3, 6L80E. Turn off spark smoothing in spark tab too. 2004 colorado V8 swaped in. View Profile View Forum Posts Private Message Visit Homepage HP Tuners Owner. HP Tuners Owner. Tech Articles. Open the VCM Editor>Edit>Transmission>Torque Management B. What I've done: Car has a NW103 TB, Camshaft: 237/250 . I've noticed that when you use the "polynomial smoothing" (such as on your main spark table), it adjusts (smooths) the numbers a little more every time you hit it. I have tuned the VE table using wideband lambda and HP Tuners and the engine is running nice i my opinion. I haven't tried it, but maybe lower numbers in the Torque Gain tables there might reduce how hard the ECU is trying to adjust torque at RPM ranges where you the main spark tables are the maximum spark that the engine will allow at any given RPM/Load combination. Today I finally came up with a consistent method to dial in base airflow that I haven't seen posted before, so I wanted to share it with the community. Try it both ways see what it does. Attached is a picture that shows several different views. DISABLE ALL TORQUE MANAGEMENT – This will eliminate all torque management within the PCM. From the 0-1,000 RPM range and at the low Airmass range of 0. At this time, the spark source is "Torque control" (Timing = Torque Mgt Advance) then switches to Base/MBT. It is based on Zeroed out the over and under spark table and set all idle target tables to 1000 rpm. 25,28,33,27 to 25,27,29,31) helps performance or does it hurt performance? COT is meant to save the cats, but it can be heavy-handed and persistent overenrichment. At 12 seconds after cranking we have a big jump in advance up to 28 degrees at a corresponding 1600 rpm. 1 for all 4 MS tables. This has a big effect on the off-idle tip-in response during low speed driving. Ignore this step for a standard transmission (M6) and continue to step 2. - Put Idle Adaptive Spark Control back to stock settings then increase values 25-50%. 86315 Hi HPT folks, I would like the confirmation of a seasoned tuner to confirm if it's safe enough what I've done to my spark tables (High/Low octane are equal) and my current MAX Knock retard values for both PE and non PE tables. Direct injection, Torque Modeling, MAF/SD airmass calibration, Variable Cam Good news is that spark isn't going so negative, when idle is controlled by torque. Show Printable Version; 09-19-2007 #1. Spark Smoothing works to reduce rapid accellerations and decelerations of the engine to dampen drivetrain oscillations. Chris@HPTuners. SAM_69. I edited the row axis and put 1. Engine>Spark>Minimum Spark> Base and Long Term (Both tables) Change 0. 00. Follow along with lead instructor, Jeff Evans, as he walks you through the spark timing modifiers such as PE/COT, IAT, ECT, EGR, and many others. I realize this is probably a low priority for HP Tuners, as the only point of pulling this much timing is for theatrical purposes, but I'd really appreciate any help figuring this out. My guess is that under light throttle conditions it's trying to smooth between the regular spark table and the idle tables--coastdown, etc. Speed shop (Vengeance Racing) tuned all and dyno'ed when completed and turned in some decent numbers (430 I want to adjust my high octane spark based on the spark airmass but I don't see this as an available channel. 68 in the last cell and interpolated between . Just look at your VE and Spark advance tables Support Those Who Support The GarageFor more tuning content check out our partner Elite Tuned School:http://www. Go back to stock on your adaptive idle overspeed and underspeed tables. I don't know what you did wrong in your tuning, but your log file shows you are RICH on deceleration, and LEAN on acceleration. Hi. Also wondering if smoothing up the spark table (ex. HP Tuners LLC; Top; I have enabled dfco above 1700rpm and disabled below 1600 rpm. Cell 210-954-4985 Launch spark is used to add spark advance upon throttle tip-in generally when the engine is cold to assist in smoother transitions from idle spark to run spark. Were you running the AC? that's what it looks like. 06-08-2016 #10. Did that based on one of the videos suggested. 5 load for sure. In the VCM Editor, under Engine > Spark > Advance > Minimum Spark > Base table what does this table control? I have a stage 1 package on my car. K44. There are torque coefficient tables for spark, airflow, AFR, MAP, etc. If you get the load right near the edge of the change, it'll try to do this Allowing spark to go below 8 degrees might correct this a bit but could also destabilize the 9 second long segment leading up to the 12 second mark which is presently quite stable. - Increasing the max torque delta and torque loss parameters in the spark smoothing algorithm (no noticeable difference) - Disabling DFCO The so called infamous OP Spark is something a lot of people dread and are afraid of, and for good reason. View Profile View Forum Posts Private Message Visit Homepage Advanced Tuner Join Date Jun 2004 Location Idle adaptive spark control seems like a good place to start. I do know that one thing we can control in VCM Controls is to turn spark idle control off. 0 turtorial available Furthermore, you do NOT add spark for bigger cams. For example: Cruising at 2500 rpm, 60mph, 5% And, yes, some copy their final adjusted values in their Idle Spark tables from 400 to 1200 rpms and 0. You need to be sure that you are turning off the MAF while you are tuning the VE Table. 08-1. pdf) or read online for free. jonnycatz. colamotas. The main adjustments to spark come from your baro and iat spark adjustment tables. Unfortunately, after copying over most everything relevant from the 6. My base running airflow is good i even tried raising and lowering it to see if it helped. Set Abuse Mode Enable = False C. Easy enough, and checking the low octane table and idle spark and etc. I disabled the spark smoothing a while ago and it helped, but then it seemed to have come back a little after that. We take a step by step approach introducing more concepts and techniques with each video to illustrate not only how the GM ecu works, but how to read live data and make accurate changes. My understanding is the spark smoothing is also working at the same time so it could be affecting the over/under corrections as well. I initially had a good ignition trace on the log but I was always getting around 6 degs (false) knock retard even on low boost so I disabled the knock sensor and it tuning cam ls1 I have halved both tables to suit idle etc. It doesn't stall, but can fall to 400 or 500 rpm before recovering to my 800 rpm idle. 632" 113LSA, Lingenfelter CNC Heads, MSD Atomic AirForce Intake, and a set of long tubes. at . really good idle at 725rpm/ 18*spark idle what do you fellas normally run with your underspeed/overspeed tablesleave them at stock levels or a tad lesser? You need more timing in mapped point 8. It was in my case. car is a 2010 Camaro e38 computer, long tube headers and a 229/236 cam. Borderline and MBT both need more advance above . It's called M6 spark smoothing. The knock learn factor can be logged using the scanner on many vehicles. 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