Swapping to 3.45 gears on supercharged L99 - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

L99CAMA2011 · 01-06-2016, 10:57 PM

Quote:

Originally Posted by HAMBO

I've got a 2013 SS with an SLP TVS2300, still using the pulley that came with it. It's a daily driver and occasionally gets to the track (1-2 times per year).

I'm very happy with the way it drives, but have appetite for a bit more kick right off the line. Was wondering whether switching to 3.45 gears would do the trick? Have read higher than that (was also looking at the GM 3.91s) on an FI L99 is too much gear.

Also open to any other suggestions of next mods to add instead. Not really looking to add much more rwhp at this point (can maybe push another ~40-50 without having to do many other modifications I think). Though trying to keep mods to those approved in California (so no cats, LTs, cams, etc)

Thanks for any suggestions!

I would love to get your 3.27s. Just get a nice set of lighter rims and tires. That works for my cam only car big time.

JDP Sales · 01-07-2016, 09:45 AM

I wish I had more hands....So I could give the 3.45's 4 Thumbs up

You may have to peddle the throttle a little in 1st and 2nd but its better than wanting more power IMO.

All the best,

Jared Royce
888.308.6007

Fiftydriver · 01-07-2016, 07:03 PM

I have one of Teds complete diffs with all the options in 3.91 on my L99 with maggie and love them. This is a street only car and yes you can burn them at will in 1 & 2nd but if you drive smart, you can also get the full effect out of them as well. For street use, i love them and still only run around 2500 rpms at highway cruising speeds.

HAMBO · 01-07-2016, 07:28 PM

Thanks for all the great info everyone. Not really looking to spend enough to go with a new TC or new complete differential, though things to consider for another day. Based on the feedback not sure it's worth the work / $ to just do 3.45s on their own.

I'm not really looking to make big changes to the way the car drives, I'm quite happy with it now. Only thing I'd like is a bit more response immediately when pressing the accelerator. Was wondering whether 3.45s alone would do that.

Js2fst · 01-07-2016, 11:56 PM

I went from 3.91's to 3.23's when we did zl1 swap on manual

Apex Motorsports · 01-08-2016, 10:29 AM

Quote:

Originally Posted by HAMBO

Thanks for all the great info everyone. Not really looking to spend enough to go with a new TC or new complete differential, though things to consider for another day. Based on the feedback not sure it's worth the work / $ to just do 3.45s on their own.

I'm not really looking to make big changes to the way the car drives, I'm quite happy with it now. Only thing I'd like is a bit more response immediately when pressing the accelerator. Was wondering whether 3.45s alone would do that.

Look into a torque converter. I think that will do what you are looking for.

HAMBO · 01-08-2016, 11:15 AM

Quote:

Originally Posted by Apex Motorsports

Look into a torque converter. I think that will do what you are looking for.

Thanks Chase! Appreciate the info.

hammdo · 01-08-2016, 12:32 PM

Man, gotta be careful between 'HAMBO' and 'HAMMDO' ;o)

-Don

Andy-AMSOIL · 01-08-2016, 12:56 PM

Great threads like these help. Thanks all for posting

Moreair1 · 01-08-2016, 05:30 PM

On my 02 a4 z28 I went from 2.73 to 3.73 gears, and then later I installed a 3600 stall converter, I felt the stall converter alot more than I did with my gears, not to mention dropped my 1/4 mile by a little more than .5 seconds, and atleast 12 years ago it wasn't to bad priced to do either

01-07-2016, 07:03 PM	#17
Fiftydriver Drives: 2010 Camaro 2SSRS RJT L99 Join Date: Jun 2010 Location: Fort Shaw, Montana Posts: 1,242	I have one of Teds complete diffs with all the options in 3.91 on my L99 with maggie and love them. This is a street only car and yes you can burn them at will in 1 & 2nd but if you drive smart, you can also get the full effect out of them as well. For street use, i love them and still only run around 2500 rpms at highway cruising speeds. __________________ Fiftydriver 2010 SSRS, RJTC, L99, Maggie 2300 SC, 3.4" pulley, Roto-Fab CAI, Dynatech Supermaxx LT headers, Dynatech High Flow cats, Corsa Cat back exhaust, Dual Elite Engineering catch can, MSD wires and Jannetty custom tune, JRE custom diff w/ posi mod, 3.91 LPE gears, Pfaht trailing arms, Pfaht trailing arm and Diff bushings, drop springs and sport sway bars front and back, Fesler dual guage pillar pod w/ AM Cobalt Boost and A/F guages. More to come!!

01-07-2016, 07:28 PM	#18
HAMBO Drives: Supercharged 2013 AGM 2SS/RS Join Date: Oct 2013 Location: Los Angeles, CA Posts: 786	Thanks for all the great info everyone. Not really looking to spend enough to go with a new TC or new complete differential, though things to consider for another day. Based on the feedback not sure it's worth the work / $ to just do 3.45s on their own. I'm not really looking to make big changes to the way the car drives, I'm quite happy with it now. Only thing I'd like is a bit more response immediately when pressing the accelerator. Was wondering whether 3.45s alone would do that. __________________ 2013 AGM 2SS/RS SLP TVS2300, Edge CAI, 3" Magnaflow catback, BC Racing BR series coilovers, HRE FF15's (20x10 square) with Michelin Pilot Sport 4S's, GM STB, BMR front and rear sway bars and toe links, Prothane subframe bushings and front control arm inserts, JDP rear upper control arm bushings, Elite Engineering catch can. Tuned by Cunningham Motorsports. 1967 Bolero Red 396 SS/RS Convertible

01-07-2016, 11:56 PM	#19
Js2fst 2010 transformer Drives: 2010 ss camaro Join Date: Nov 2014 Location: Lee's summit mo Posts: 591	I went from 3.91's to 3.23's when we did zl1 swap on manual __________________ 2010 transformer, vertical doors, 315nt05 rears, pedders supercar coilovers, hotchkis sway bars, links, adjustable, toe bars, bmr poly cradle bushings, 1le control arms, bmr tunnel brace, bmr subframe connectors. Cam 227/239-623-620@114 Mast medium bore heads, sw 1 7/8 headers, cat delete, x pipe, 3" dynomax true duals, fuel rails, fast 102 intake and NW 102 throttle body, catch can, rotofab cai, shifter, raptor custom shift light. Dss drive shaft, 3.91 gears. 492 rwhp

01-08-2016, 12:32 PM	#22
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	Man, gotta be careful between 'HAMBO' and 'HAMMDO' ;o) -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577 Last edited by hammdo; 01-08-2016 at 12:59 PM.

01-07-2016, 09:45 AM	#16
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	I wish I had more hands....So I could give the 3.45's 4 Thumbs up You may have to peddle the throttle a little in 1st and 2nd but its better than wanting more power IMO. All the best, Jared Royce 888.308.6007

01-08-2016, 12:56 PM	#23
Andy-AMSOIL Drives: bicycle Join Date: Jun 2014 Location: Digging for oil Posts: 375	Great threads like these help. Thanks all for posting

01-08-2016, 05:30 PM	#24
Moreair1 Drives: 2011 ss convertible Join Date: Jul 2015 Location: Colorado Posts: 1,329 View My Garage	On my 02 a4 z28 I went from 2.73 to 3.73 gears, and then later I installed a 3600 stall converter, I felt the stall converter alot more than I did with my gears, not to mention dropped my 1/4 mile by a little more than .5 seconds, and atleast 12 years ago it wasn't to bad priced to do either