Supercharge with 3.91 Gears? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Gaddism1 · 06-07-2015, 06:31 PM

I have heard some folks leave stock gears in their 2010/2011 SS manual once they super charge the car. I cant afforcd the SC now but I do want to swap to the 3.91 gears. Will the 3.91 gears be a problem once I do add the SC? Will the car have too much pull in gear 1 and 2??

Thanks In Advance!

10aSSee D · 06-07-2015, 06:40 PM

I have 3.90 gears in mine and I do spin the tires pretty good but it is a blast to drive and still nice when just rolling around town.

SuperchargedStealth · 06-07-2015, 07:25 PM

Quote:

Originally Posted by Gaddism1

I have heard some folks leave stock gears in their 2010/2011 SS manual once they super charge the car. I cant afforcd the SC now but I do want to swap to the 3.91 gears. Will the 3.91 gears be a problem once I do add the SC? Will the car have too much pull in gear 1 and 2??

Thanks In Advance!

Part of it depends on what type of S/C you get. With a PD blower, you'll spin for a while before gripping. With a centri, you'll launch like stock unless you are at a higher RPM level. It's one of those things that you'll learn to adapt to. Personally I think that 3.70 or 3.73 is optimal. Good launch with a blower, and lower RPM while cruising.

silverz28 · 06-07-2015, 08:32 PM

I have them. It's a blast.

Nighthawk89 · 06-07-2015, 10:07 PM

Im running stock gears. work perfect.

43Camaro · 06-07-2015, 10:39 PM

3.91 and never look back. Throw your frickin head straight back in the seat...

SuperchargedStealth · 06-07-2015, 10:50 PM

Quote:

Originally Posted by 43Camaro

3.91 and never look back. Throw your frickin head straight back in the seat...

Once you hook up though....

43Camaro · 06-07-2015, 10:52 PM

Quote:

Originally Posted by SuperchargedStealth

Once you hook up though....

A good tire is always a plus with this combo, along with some suspension mods. Combo does require a little finesse at times, but I still wouldn't change back or drop down..

SuperchargedStealth · 06-07-2015, 10:58 PM

Quote:

Originally Posted by 43Camaro

A good tire is always a plus with this combo, along with some suspension mods. Combo does require a little finesse at times, but I still wouldn't change back or drop down..

I understand that part too. Having an M6, I can start slowly in 1st, shift to second, and once boost builds up enough, it has that same effect. Granted, we have two different systems, but when I have that 24 lbs. kick in fully, my front end just starts lifting. It's scary, yet exhilarating at the same time. A good tire does play a big role however.

blake2010ss · 06-08-2015, 06:53 AM

i got 3.91 with my ecs centri blower. they work great, but i got all the suspension/rear end stuff to keep the traction in tact. I also run a mickey e/t street.

ilir14 · 06-08-2015, 10:13 AM

i did Lsa conversion and 1st and 2nd it just spins, but once you hook your gone, and as mention above get some suspension and tires and no problem

43Camaro · 06-08-2015, 10:22 AM

I look at the 3.91 as a force multiplyer. I'm running modest boost, the gears make the car feel like I'm at 700 RWHP with that awesome torq. CMP also tuned the tranny up to work well, nice even smooth shifts.

fourmz · 06-08-2015, 11:53 AM

My setup it a total neck breaker, I love it!!

Reelgrinder · 06-08-2015, 04:53 PM

Its the cam choice, not the blower choice, Jesus! Bigger gears will make car feel lighter and from dead stop starts talk about easy! It really makes the heavy 5th gen so much easier to drive modded or not..

I'm glad I didn't listen all the peeps say don't do it!

And its only 700 upgrade if change it your self.

06-07-2015, 06:31 PM	#1
Gaddism1 Drives: 2010 SS Inferno Orange MT Join Date: Mar 2011 Location: MA Posts: 82	Supercharge with 3.91 Gears? I have heard some folks leave stock gears in their 2010/2011 SS manual once they super charge the car. I cant afforcd the SC now but I do want to swap to the 3.91 gears. Will the 3.91 gears be a problem once I do add the SC? Will the car have too much pull in gear 1 and 2?? Thanks In Advance! __________________ [B][SIZE="3"]

06-07-2015, 06:40 PM	#2
10aSSee D Drives: Silver 2010 SS Camaro Join Date: Jul 2009 Location: TN Posts: 2,562	I have 3.90 gears in mine and I do spin the tires pretty good but it is a blast to drive and still nice when just rolling around town. __________________ MODS: ADM built 417, 2.9L Whipple with 3.250 pulley, ADM ported and polished LSA heads,ADM stage3 cam,ADM LSA belt drive system,ADM CAI race scoop, ADM dual fuel pumps, ID 850's, BMR full suspension, Gforce 9 inch kit with 3.5 inch driveshaft, Street Slayer twin carbon clutch, Lingenfelter oil seperator. Tuned by built by ADM Performance, 763rwhp,705rwtq

06-07-2015, 08:32 PM	#4
silverz28 Drives: 1996 Camaro Z28, 2012 2SS/RS Join Date: Aug 2012 Location: Texas Posts: 279	I have them. It's a blast. __________________ 2012 2SS/RS IOM, LS3, Aftermarket Hurst shifter, IOM interior, Borla "S", 1 7/8 Big Flow headers, ADM Race cold air, BMR 1" lowering springs, SLP Supercharger, Custom Comp Cam, Fore Innovations twin pumps, Flex Fuel Sensor

06-07-2015, 10:39 PM	#6
43Camaro Drives: [COTW 8/3/15] 2010 Camaro SS L99 Join Date: Mar 2015 Location: Mooresville NC Posts: 434 View My Garage	3.91 and never look back. Throw your frickin head straight back in the seat... __________________ A Little bit of power. ALL WORK DONE BY ME! Just added 2021 ZL1 1LE to the Stable! https://www.camaro5.com/forums/showthread.php?t=418273

06-08-2015, 06:53 AM	#10
blake2010ss Drives: 2010 Camaro 2ss/rs Join Date: Oct 2009 Location: stone mountain, GA Posts: 2,228	i got 3.91 with my ecs centri blower. they work great, but i got all the suspension/rear end stuff to keep the traction in tact. I also run a mickey e/t street. __________________ 2010 Camaro 2SS/RS LS3 1093/1066 416, AGP 6262, E85, Cam

06-07-2015, 10:07 PM	#5
Nighthawk89 Drives: 2011 Camaro 2Ss M6 Join Date: Dec 2011 Location: Southern California Posts: 4,013	Im running stock gears. work perfect.

06-08-2015, 10:13 AM	#11
ilir14 Drives: Camaro ss 1le Join Date: Jan 2014 Location: Houston,Tx Posts: 470	i did Lsa conversion and 1st and 2nd it just spins, but once you hook your gone, and as mention above get some suspension and tires and no problem

06-08-2015, 10:22 AM	#12
43Camaro Drives: [COTW 8/3/15] 2010 Camaro SS L99 Join Date: Mar 2015 Location: Mooresville NC Posts: 434 View My Garage	I look at the 3.91 as a force multiplyer. I'm running modest boost, the gears make the car feel like I'm at 700 RWHP with that awesome torq. CMP also tuned the tranny up to work well, nice even smooth shifts. __________________ A Little bit of power. ALL WORK DONE BY ME! Just added 2021 ZL1 1LE to the Stable! https://www.camaro5.com/forums/showthread.php?t=418273

06-08-2015, 11:53 AM	#13
fourmz Fourmz Drives: 2010 2SS/RS 1968 Firebird 1994 Z28 Join Date: Sep 2009 Location: Soldotna,Alaska Posts: 382	My setup it a total neck breaker, I love it!! __________________ Black-in-Black/Blue out 2010 2SS/RS LS-3 -Magnacharger TVS2300,OD cog belt drive, 3.4" pulley, Janetty smooth idle blower cam,ID-850 injectors,ZL1 fuel pump,MSD boost a pump, ADM FPCM Janetty custom tune,Doug Thorley long tube headers, Corsa catback,C.A.I. Intake, Roto-Fab Big Gulp Scoop, Monster LT1/SC Clutch assembly,Eibach pro kit plus, BMR cradle/diff bushings, Barton Shifter,JRE 3.91 Eaton Tru-Trac rear diff,Barton Short Throw SHifter, Boss 339 20" wheels,Painted heritage grille, Sparks Restoration Inverted blue/black SS emblems, Seibon BB carbon fiber hood, ZL1 front bumper conversion.

06-08-2015, 04:53 PM	#14
Reelgrinder Drives: 2016 SS Join Date: Oct 2014 Location: DFW Posts: 228	Its the cam choice, not the blower choice, Jesus! Bigger gears will make car feel lighter and from dead stop starts talk about easy! It really makes the heavy 5th gen so much easier to drive modded or not.. I'm glad I didn't listen all the peeps say don't do it! And its only 700 upgrade if change it your self. __________________ 2016 SS with Eforce 2300 Borla Headers Borla Atak