Page 4 of 4 FirstFirst 1234
Results 61 to 75 of 75

Thread: Torque Request Rate Limits

  1. #61
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    9,443
    It's pulling down to -22 degrees of timing or you are only allowing the computer to drop to +22 degrees of timing?

    You always want a timing pull on shifts. Part throttle can be more than full throttle. Like have it drop to -10 to 0 degrees on light throttle and but depending on combo try to have at least some negative timing pull on the shift to help the transmission out.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

  2. #62
    Tuner in Training
    Join Date
    Jan 2019
    Location
    Bonita Springs
    Posts
    29
    Quote Originally Posted by 5FDP View Post
    It's pulling down to -22 degrees of timing or you are only allowing the computer to drop to +22 degrees of timing?

    You always want a timing pull on shifts. Part throttle can be more than full throttle. Like have it drop to -10 to 0 degrees on light throttle and but depending on combo try to have at least some negative timing pull on the shift to help the transmission out.

    I didn't realize I have up tm disabled under torque reduction tab. turning it back on fixed. Thanks, oh and it was shift 22 degrees positive timing. lol that's why its was so hard at part throttle.

  3. #63
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    9,443
    Yeah, the high positive timing on the shifts will be a bad time lol.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

  4. #64
    Tuner in Training
    Join Date
    Jan 2019
    Location
    Bonita Springs
    Posts
    29
    definitely on light throttle input. it pretty nasty spinning tires on high rpm/high cylinder airmass shifts thought.

  5. #65
    Potential Tuner
    Join Date
    Sep 2019
    Posts
    7
    long time lurker first time posting, the ? i have is, has anybody disabled increasing rate limit, if so what did it do for u

  6. #66
    Tuner in Training
    Join Date
    Sep 2016
    Posts
    17
    Quote Originally Posted by Little B View Post
    There is an updated pedal assembly for Silverados too. Mine was the old part number(#20972082), ordered the new one(#23362231) that supposedly helps with the lazy pedal feel too.

    Thanks for this information, I checked mine out and I have the updated part number already. its stamped 5 29/15 so I'm going to assuming that is the manufacture date and probably only applies to early 2015 models and 2014 models.

  7. #67
    Tuner in Training
    Join Date
    Jan 2019
    Location
    Bonita Springs
    Posts
    29
    Quote Originally Posted by 4102sierra View Post
    long time lurker first time posting, the ? i have is, has anybody disabled increasing rate limit, if so what did it do for u
    A few people has disabled it and from what I've read they haven't seen any differences. I personally haven't tried it cause it mentions in the description that its for when the vehicle is stationary.

  8. #68

  9. #69
    Advanced Tuner
    Join Date
    May 2003
    Posts
    424
    Torque Rate Limit is enabled in my 2017 Z06. I plan to disable it and change the Torque Request Rate Limits to be similar to 2019+ cars. I haven't had a chance to test it yet though, maybe tomorrow.
    I've tuned a few things...

  10. #70
    Tuner in Training
    Join Date
    Sep 2016
    Posts
    17
    I figured out my "stumble" issue when maxing out these tables. I've bumped my idle up from stock 500 to 700 and it seems the fuel tables aren't really set correctly for this and its running rich. The LTFT is getting pulled back to -10% and as soon as I tap the throttle it goes back down to 0%. If I reset the LTFT learned values, and tap the throttle it responds very quickly and awesome like I'd expect. Looks like its time I learn how to adjust fuel delivery at idle now.

  11. #71
    Senior Tuner Higgs Boson's Avatar
    Join Date
    Mar 2010
    Location
    Texas Hill Country
    Posts
    3,254
    Quote Originally Posted by FastV View Post
    A few people has disabled it and from what I've read they haven't seen any differences. I personally haven't tried it cause it mentions in the description that its for when the vehicle is stationary.
    out of all the tables, one drop down box for Enable or Disable is for Vehicle Stationary. All the rest are not.

  12. #72
    Advanced Tuner NICKY BOY's Avatar
    Join Date
    Feb 2006
    Posts
    241
    Throttle input crucial to smooth fast laps! No only if this virus will pass and roadracing courses will open back up so I can try out new edits to my tune!

    https://youtu.be/M1REVM3XR-4

  13. #73
    Advanced Tuner lt1z350's Avatar
    Join Date
    Mar 2014
    Location
    Jacksonville FL
    Posts
    465
    Quote Originally Posted by obd2 View Post
    so cool will see if I got them also. maybe this can be a solution to lazy throttle helping 60 foot times. full throttle only happens after 5mph.
    Cheers
    What vehicle are you seeing it not go wot till 5 mph? This is from a 1.40 60 foot on my zl1. The trick is now getting my buddies 17 m6 zl1 to do this too. lol Seems that adding to driver demand and virtaul torque tables has helped his a lot but still not opening all the way till 10 mph or so. Made ground on it but still lazy compared to the automatic.Been looking at these tables but they say disabled on my tune so I thought they were not active. Now reading it yet again see that is disabling it when vehicle is stationary. I wonder if this can help it have better throttle response in park and neutral. I have managed to make it command a whole 50 percent but no matter what I do yet to make the throttle open all the way when its at a stop and not in gear. I just started looking at that again and seems like driver demand is commanding it to stay down in the 40 percent range.
    Attached Images Attached Images
    First 9 second 6th gen lt4 zl1 stock blower/stock cam/stock heads boost only pass. Current record holder Builder/owner/tuner. 9.52@143 full weight pass.

    2013 cadillac ats 2.0t Big turbo-gone
    2007 tahoe 5.3 lsa blower on 14 lbs boost 6l80e swap 2009 os all around modules bcm added tapshift
    2017 zl1 a10 5 inch cold air/2 inch headers/ 9.55 lower/ e85/bigger hx /Soler engineering zr1 100mm tb / methanol injection with torqbyte controller and prometh pump / Jokerz performance full tilt V1

  14. #74
    Quote Originally Posted by lt1z350
    This is from a 1.40 60 foot on my zl1. The trick is now getting my buddies 17 m6 zl1 to do this too. lol Seems that adding to driver demand and virtaul torque tables has helped his a lot but still not opening all the way till 10 mph or so. Made ground on it but still lazy compared to the automatic.
    I've been struggling with this issue on a 2018 Cadillac ATS-V with the same E92A ECM and M6 transmission. We have 700 foot-pounds of torque at the wheels, and have not been able to find a way to keep the throttle open in first gear. It only closes for about one quarter second, but that's long enough for the engine speed and boost to drop, which results in 60' time in the 1.85 to 2.05 second range.
    1998 Pontiac Grand Prix GTP (first 3800 FWD in the tens), 9.499 @ 145.13 mph
    1998 Pontiac Firebird (first 3800 RWD in the eights), 843 whp, 8.991 @ 152.12 mph, driven by Tim King
    1999 Pontiac Grand Prix GT (first 3800 FWD in the eights), 8.902 @ 154.90 mph, driven by Bob Cook
    2000 Pontiac Bonneville SSEi (first 3800 Bonneville in the twelves, elevens and tens), 10.711 @ 125.71 mph, driven by Ed Morad
    2008 Pontiac G8 (first G8 in the tens), 10.727 @ 129.87 mph
    2018 Cadillac ATS-V, 651 whp

  15. #75
    Advanced Tuner
    Join Date
    May 2003
    Posts
    424
    Quote Originally Posted by lt1z350 View Post
    What vehicle are you seeing it not go wot till 5 mph? This is from a 1.40 60 foot on my zl1. The trick is now getting my buddies 17 m6 zl1 to do this too. lol Seems that adding to driver demand and virtaul torque tables has helped his a lot but still not opening all the way till 10 mph or so. Made ground on it but still lazy compared to the automatic.Been looking at these tables but they say disabled on my tune so I thought they were not active. Now reading it yet again see that is disabling it when vehicle is stationary. I wonder if this can help it have better throttle response in park and neutral. I have managed to make it command a whole 50 percent but no matter what I do yet to make the throttle open all the way when its at a stop and not in gear. I just started looking at that again and seems like driver demand is commanding it to stay down in the 40 percent range.
    Quote Originally Posted by Tapout Tuning View Post
    I've been struggling with this issue on a 2018 Cadillac ATS-V with the same E92A ECM and M6 transmission. We have 700 foot-pounds of torque at the wheels, and have not been able to find a way to keep the throttle open in first gear. It only closes for about one quarter second, but that's long enough for the engine speed and boost to drop, which results in 60' time in the 1.85 to 2.05 second range.
    Have you tried lowering the Virtual Torque in the problem areas? Below stock values.
    I've tuned a few things...