L99 suggested rev limiter and shift points - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BossCitySS · 06-06-2011, 06:32 PM

I was wondering if some tuner could offer advice. I took my car to track last week and everytime my tranny would shift from 2nd to 3rd it would hit the rev limiter. Which cause me to loose a few tenths I know. Oh by the way its an automatic with an agrressive tranny tune I presume. My buddy has HP Tuners says my shift points are 6200 rpm's and max rev limiter is 6700 rpm's. In my head I don't see how I'm hitting limiter any insight would help! Thanks!

grocerygetter · 06-12-2011, 08:14 AM

on my other camaro ( I haven't taken my new one to the track yet)...if I left it in Sport shift (shifter all the way back, but don't hit the paddles), my car would do the same on the 2-3 shift. IMO, leave it in drive. Paddle shifting it may slow you down because of the delay on the action.

BossCitySS · 06-12-2011, 09:00 AM

What's sad is I do leave it in drive. It must be on my tune!

Neriah · 06-12-2011, 09:03 AM

My insight = trade for M6 LS3

L99CAMA2011 · 06-12-2011, 09:03 AM

From my experience, S mode full auto shifts just before redline, the difference between tap shifting and full auto is about 1/10 th of a second slower. Fells like it is due to less line pressure with button shifting vs full auto, not sure. However take off in full auto vs. tap shift, tap shift is way more aggresive.

SGOS252382 · 06-12-2011, 09:14 AM

I would drop your shift points down a bit. That should correct this issue.

Aries240SS · 06-12-2011, 09:36 AM

Quote:

Originally Posted by SGOS252382

I would drop your shift points down a bit. That should correct this issue.

agreed. Set your shift points down to 6050-6100. You'll still be dropping back into the powerband, and it should eliminate the rev limiter kiss you're seeing.

Chris@SPMC · 06-16-2011, 05:03 PM

Curious if this was with stock size wheels and tires?

Tampa Tuning · 06-17-2011, 07:45 AM

Stock shift points in RPMs are about 5800-6000 depending which gear is shifting. A good rule of thumb is for each MPH you add to your WOT shift, that will add 150 -200 RPMs, but on your scanner you have to look to be sure.

Like stated earlier, you can have perfect shift points at 6000 RPMs, then go to a smaller tire for the track, that could make you hit the rev limiter. If you have HP tuner, you can change your tire size in the tune and command it to automaticly change your shift points.

BossCitySS · 06-24-2011, 10:17 PM

Just noticed y'all had more responses for me! But yes when I hit the rev limiter I had my 18" drag radials on my car! They are the 305/45/18's which I thought were close to factory tire size???

Unobtainium · 06-24-2011, 10:45 PM

Will the VVT and DOD stuff safely rev to 6700?
Seems like a lot higher than stock.

BossCitySS · 06-24-2011, 11:51 PM

I have the L99 to LS3 conversion with all the goodies that make it soo pricey!

Neriah · 06-24-2011, 11:59 PM

just raise the rev limiter? lol. That way you wont hit it

06-06-2011, 06:32 PM	#1
BossCitySS Drives: 2010 Camaro SS L99 Join Date: Apr 2010 Location: Bossier City, La Posts: 303 View My Garage	L99 suggested rev limiter and shift points I was wondering if some tuner could offer advice. I took my car to track last week and everytime my tranny would shift from 2nd to 3rd it would hit the rev limiter. Which cause me to loose a few tenths I know. Oh by the way its an automatic with an agrressive tranny tune I presume. My buddy has HP Tuners says my shift points are 6200 rpm's and max rev limiter is 6700 rpm's. In my head I don't see how I'm hitting limiter any insight would help! Thanks!

06-12-2011, 08:14 AM	#2
grocerygetter Drives: 2010 SS (2ss/rs, auto, SW/IOstripe) Join Date: Jan 2010 Location: 72034 Posts: 2,129 View My Garage	on my other camaro ( I haven't taken my new one to the track yet)...if I left it in Sport shift (shifter all the way back, but don't hit the paddles), my car would do the same on the 2-3 shift. IMO, leave it in drive. Paddle shifting it may slow you down because of the delay on the action. __________________ -John S. 2010 Camaro 2ss/rs-a few cosmetic things, Pfadt stage 2 plus rear arm package, LG chassis brace, Vortech, ADM fpcm/ZL1 pump, Lingenfelter 3.70 gears, JBA catless, ProTorque 3200, 18" TSW N'rings for drag duty, 20" Forgestar F14s for street. Thanks to: Jannetty Racing, dv8motoring, Gwatney Chevrolet/GPI Jacksonville AR, TCAudio in Benton AR 2012 4Runner -daily driver

06-12-2011, 09:03 AM	#4
Neriah Drives: 2011 2SS/RS Join Date: May 2011 Location: Brentwood, CA Posts: 864	My insight = trade for M6 LS3 __________________ Car is FOR SALE $29,500 Built By Blu808 LG G6X3 Cam, UD Pully, Rotofab Intake. Dynatech LT's. Borla ATAK Catback. Full BMR bushings and suspension.

06-12-2011, 09:14 AM	#6
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,004	I would drop your shift points down a bit. That should correct this issue. __________________

06-16-2011, 05:03 PM	#8
Chris@SPMC Drives: '99 H/C FRC Corvette and '07 TBSS Join Date: Jan 2011 Location: Fort Worth, TX Posts: 175	Curious if this was with stock size wheels and tires? __________________ Tech Advisor for SNL Performance and Monster Clutch Co. - Call me for any questions you have on Monster Clutches, or, if you want your Gen5 to perform better! SNL Performance is a full service performance shop set on making your modding experience a pleasant one! :flag2: Chris, 817-750-2000

06-12-2011, 09:00 AM	#3
BossCitySS Drives: 2010 Camaro SS L99 Join Date: Apr 2010 Location: Bossier City, La Posts: 303 View My Garage	What's sad is I do leave it in drive. It must be on my tune!

06-12-2011, 09:03 AM	#5
L99CAMA2011 Drives: 2012 Camaro 1ss LS3 (THE KRAKEN) Join Date: Feb 2011 Location: Masachusetts Posts: 1,900	From my experience, S mode full auto shifts just before redline, the difference between tap shifting and full auto is about 1/10 th of a second slower. Fells like it is due to less line pressure with button shifting vs full auto, not sure. However take off in full auto vs. tap shift, tap shift is way more aggresive.

06-17-2011, 07:45 AM	#9
Tampa Tuning Like us on Facebook! Drives: C5 corvette/ 2012Dodge hemi Charger Join Date: Oct 2010 Location: Tampa, Fl Posts: 1,725	Stock shift points in RPMs are about 5800-6000 depending which gear is shifting. A good rule of thumb is for each MPH you add to your WOT shift, that will add 150 -200 RPMs, but on your scanner you have to look to be sure. Like stated earlier, you can have perfect shift points at 6000 RPMs, then go to a smaller tire for the track, that could make you hit the rev limiter. If you have HP tuner, you can change your tire size in the tune and command it to automaticly change your shift points. __________________ Read these: http://www.camaro5.com/forums/showthread.php?t=197715 http://ls1tech.com/forums/florida-members/1575151-tampa-tuning-dyno-tuning-street-tuning.html

06-24-2011, 10:17 PM	#10
BossCitySS Drives: 2010 Camaro SS L99 Join Date: Apr 2010 Location: Bossier City, La Posts: 303 View My Garage	Just noticed y'all had more responses for me! But yes when I hit the rev limiter I had my 18" drag radials on my car! They are the 305/45/18's which I thought were close to factory tire size???

06-24-2011, 10:45 PM	#11
Unobtainium Fabricator Drives: 2011 2SS Summit White Join Date: Jun 2011 Location: Langdon, AB Posts: 356	Will the VVT and DOD stuff safely rev to 6700? Seems like a lot higher than stock. __________________ Roto-fab CAI Unobtainium Exhaust AR lt's 330whp L99

06-24-2011, 11:51 PM	#12
BossCitySS Drives: 2010 Camaro SS L99 Join Date: Apr 2010 Location: Bossier City, La Posts: 303 View My Garage	I have the L99 to LS3 conversion with all the goodies that make it soo pricey!

06-24-2011, 11:59 PM	#13
Neriah Drives: 2011 2SS/RS Join Date: May 2011 Location: Brentwood, CA Posts: 864	just raise the rev limiter? lol. That way you wont hit it __________________ Car is FOR SALE $29,500 Built By Blu808 LG G6X3 Cam, UD Pully, Rotofab Intake. Dynatech LT's. Borla ATAK Catback. Full BMR bushings and suspension.

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