Gears on L99 SS - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

digdeep0169 · 10-07-2013, 12:22 PM

I tried to do a search for a thread on gears... not so fortunate... so...

Has anyone upgraded from the 3.27 gears in their L99 SS?

I'm looking to step up! 4.11s

In a very short time - I'm noticing while cruising around town the car
wants to be in 4th/5th gear... which drops the RPMs very low.

RE-gearing - i don't mind that my RPMs will jump up... its an A6.

chime in pls

Apex Motorsports · 10-07-2013, 01:09 PM

The auto transmission is geared more aggressively than the transmission so you don't have to go with as much gear to get a similar result. By upgrading the factory 3.27s in the stock A6 equipped Camaro SS to the 3.73s you will realize an equivalent torque gain of approximately 15% or 61.5 lb.-ft. of torque and still cruise at only 2050 RPM at 70 MPH. 3.91s will realize an equivalent torque gain of approximately 20% or 82 lb.-ft. of torque and cruise at 2150 RPM at 70 MPH.

ravensjeff · 10-07-2013, 01:22 PM

I had 3.70 put in by Lingenfelter. I think the hot unit they have out now is 3.91.

Pro Stock John · 10-07-2013, 01:28 PM

Anything else done to the car, or any plans for it?

Even with the stuff I have done (in sig), I still kick around 3.70's or 3.91's. I'd like the car to have more sass from a roll.

parkermoeder · 10-07-2013, 03:26 PM

so which would you suggest for a bolton l99? not really planning on fi

Mr_Draco · 10-07-2013, 04:34 PM

Quote:

Originally Posted by digdeep0169

I tried to do a search for a thread on gears... not so fortunate... so...

Has anyone upgraded from the 3.27 gears in their L99 SS?

I'm looking to step up! 4.11s

Quote:

Originally Posted by parkermoeder

so which would you suggest for a bolton l99? not really planning on fi

The ideal and recommended ratio for a stock or bolt on L99 is 3.70s/3.73s. Due to the aggressive gearing of the tranny, 3.91s is almost undrivable. A few people like not be able to use 1st and 2nd gear at all and spinning tires at the slightest touch of the gas but most people will not. Forget about 4.11s. They are strictly for the M6.

jbrown13 · 10-07-2013, 04:56 PM

Quote:

Originally Posted by Mr_Draco

The ideal and recommended ratio for a stock or bolt on L99 is 3.70s/3.73s. Due to the aggressive gearing of the tranny, 3.91s is almost undrivable. A few people like not be able to use 1st and 2nd gear at all and spinning tires at the slightest touch of the gas but most people will not. Forget about 4.11s. They are strictly for the M6.

I beg to differ Mr. Draco. I have 3.91 gears in my L99 and it is completely drivable. It works very well on the track. The only cure for spinning the tires is a lighter foot. Everyone said it was going to be violent with the low 1st gear in the 6L80E, but I don't find that to be the case, although the converter may have something to do with that. I'm 69 years old and I do not regret going with the 3.91s. No experience with 4.11s, so no comment on them.

My other mods are Vengeance Stage 3 cam, Vengeance Stage 2 heads, CAI, LT Headers, HF Cats, Borla mufflers, UDP, converter and MT drag radials on Weld 18" wheels. 477 rwhp and 427 ft-lbs torque.

My 62 year old wife drives the car w/o any issues whatsoever.

digdeep0169 · 10-08-2013, 03:20 PM

sounding like the consensus is 3.91s which I'm OK with. If the 4.11s are intended for the M6 thats cool. Again - all new to me - great learning experience. Thanks for all who have chimed in.

My A6 has the Cai, and Borla ATAK exhaust. After gears, we will dyno it.
i live 5 seconds from The Dyno Edge in Alb

Now - should I do Richmond? any particulars I should avoid?

thanks,

Mr_Draco · 10-08-2013, 04:14 PM

Quote:

Originally Posted by digdeep0169

any particulars I should avoid?

Richmond.

When they first came out they was the only company making gears for the 5th gen and the accounts of them grenadeing was fairly high. The Mustang crowd also shows a high failure rate with the Richmond gears. Richmond's quality control really has gone to crap over the past few years.

Either get the GM gears or a set of AAM gears (AAM makes the gear sets for GM). There are other companies out there but I have no experience with them.

digdeep0169 · 10-09-2013, 10:07 PM

thanks Mr Draco.

Apex Chase? what do you got?

digdeep0169 · 10-11-2013, 01:42 PM

AAM 3.91s

Baltimorejohn1 · 10-12-2013, 09:42 PM

Quote:

Originally Posted by digdeep0169

sounding like the consensus is 3.91s which I'm OK with. If the 4.11s are intended for the M6 thats cool. Again - all new to me - great learning experience. Thanks for all who have chimed in.

My A6 has the Cai, and Borla ATAK exhaust. After gears, we will dyno it.
i live 5 seconds from The Dyno Edge in Alb

Now - should I do Richmond? any particulars I should avoid?

thanks,

https://theblock.com/sema12/part/6

http://orders.partstaxi.com/parts/in...&siteid=215330

http://www.chevroletperformance.com/home.jsp

digdeep0169 · 10-14-2013, 12:25 PM

$211... i can live with that!

FRANK121 · 10-17-2013, 01:54 PM

What all has to change to due this mod?

Is it just a swap out gears change or does the dealer have to due this?

I love mine now but could always use a little more snap

10-07-2013, 12:22 PM	#1
digdeep0169 Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013 Location: Albuquerque Posts: 963 View My Garage	Gears on L99 SS I tried to do a search for a thread on gears... not so fortunate... so... Has anyone upgraded from the 3.27 gears in their L99 SS? I'm looking to step up! 4.11s In a very short time - I'm noticing while cruising around town the car wants to be in 4th/5th gear... which drops the RPMs very low. RE-gearing - i don't mind that my RPMs will jump up... its an A6. chime in pls __________________ ~ 2012 SS ~

10-07-2013, 01:22 PM	#3
ravensjeff 100% Chevy & Harley Man Drives: 2010 2SS: Blown LSX 376-B15 Join Date: Feb 2009 Location: Eldersburg,MD Posts: 2,211 View My Garage	I had 3.70 put in by Lingenfelter. I think the hot unit they have out now is 3.91. __________________ LSX 376-B15, TVS2300 SC, Harland Sharp Rockers w/ Trunion Bearings, ATI Balancer/keyed, AR LT Headers/Borla Catback Exhaust, DSS 1400 HP Axles, DSS aluminum driveshaft, 3.70, Hotchkis Springs/Sway bars, Forgeline SO3P Aluminum Wheels (20x9.5 F/20x11 R)w/ Hidden Titanium Hardware, Nitto NT05 Tires (27540ZR20 F/31535ZR20 R), Billet LPE brake/gas pedals, Escort 9500ci Radar Detector Laser Jammer, Roto Fab CAI with Ice Silver box, Carbon fiber tube/MAF Housing Assy, LPE Aluminum coil covers, SS9 Sleeper Fiber Glass Hood (ACS), Carbotech 1521 ceramic brake pads, Elite catch can.

10-07-2013, 01:28 PM	#4
Pro Stock John Writer Drives: 2010 SS / 1967 Camaro Join Date: May 2009 Location: Chicago, IL Posts: 7,221	Anything else done to the car, or any plans for it? Even with the stuff I have done (in sig), I still kick around 3.70's or 3.91's. I'd like the car to have more sass from a roll. __________________ PROJECT HEAVY CHEVY Camaro Now: Mods for the Masses Part I \| Part II 13.15@106 1.95 \| 100% Stock 12.37@112 1.85 \| + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 \| + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 \| + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 \| + GPI VVT Cam + BW Ported Heads + CD 3800

10-07-2013, 03:26 PM	#5
parkermoeder Drives: 2011 Camaro ss Join Date: Apr 2013 Location: Leawood KS Posts: 218	so which would you suggest for a bolton l99? not really planning on fi __________________ [2011 Camaro 2ss L99 -OEM Painted GFX -Borla Atak axle back -Stainless Power headers -Cold Air Inductions Intake -Blue oracle halos -Satin black ZL1 replicas -315 invos and other cosmetic mods

10-08-2013, 03:20 PM	#8
digdeep0169 Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013 Location: Albuquerque Posts: 963 View My Garage	sounding like the consensus is 3.91s which I'm OK with. If the 4.11s are intended for the M6 thats cool. Again - all new to me - great learning experience. Thanks for all who have chimed in. My A6 has the Cai, and Borla ATAK exhaust. After gears, we will dyno it. i live 5 seconds from The Dyno Edge in Alb Now - should I do Richmond? any particulars I should avoid? thanks, __________________ ~ 2012 SS ~ Last edited by digdeep0169; 10-08-2013 at 03:30 PM.

10-07-2013, 01:09 PM	#2
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,165	The auto transmission is geared more aggressively than the transmission so you don't have to go with as much gear to get a similar result. By upgrading the factory 3.27s in the stock A6 equipped Camaro SS to the 3.73s you will realize an equivalent torque gain of approximately 15% or 61.5 lb.-ft. of torque and still cruise at only 2050 RPM at 70 MPH. 3.91s will realize an equivalent torque gain of approximately 20% or 82 lb.-ft. of torque and cruise at 2150 RPM at 70 MPH.

10-09-2013, 10:07 PM	#10
digdeep0169 Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013 Location: Albuquerque Posts: 963 View My Garage	thanks Mr Draco. Apex Chase? what do you got? __________________ ~ 2012 SS ~

10-11-2013, 01:42 PM	#11
digdeep0169 Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013 Location: Albuquerque Posts: 963 View My Garage	AAM 3.91s __________________ ~ 2012 SS ~

10-14-2013, 12:25 PM	#13
digdeep0169 Drives: 2012 Camaro SS 45th Anniversary Join Date: Sep 2013 Location: Albuquerque Posts: 963 View My Garage	$211... i can live with that! __________________ ~ 2012 SS ~

10-17-2013, 01:54 PM	#14
FRANK121 Drives: 2022 Camaro ZL1 Join Date: Sep 2010 Location: Sullivan, Missouri Posts: 653 View My Garage	What all has to change to due this mod? Is it just a swap out gears change or does the dealer have to due this? I love mine now but could always use a little more snap __________________ 2022 Black ZL1 RotoFab CAI, AWE Touring Edition Cat Back Exhaust. 665 Crank hp. est. and 660 Crank ft. lbs. est. Never been Dynoed