Rear End Question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Camaro_Psycho · 04-22-2009, 11:49 PM

Hey guys. This is my first post on the forum, but I have been reading the LS3 powertrain section for a while now and I was curious to what the gear ratio ofthe rear end of the SS trim? Does it change from the LS3 to the L99?

Kyle2k · 04-22-2009, 11:51 PM

3.27 for auto, 3.45 for manual.

Gentry78 · 04-23-2009, 11:34 PM

welcome to the site and kyle2k is right on

*Camaro_Corvette* · 04-23-2009, 11:35 PM

Welcome

And yes, kyle is on his "A" game!

Shurenuff · 04-25-2009, 01:10 PM

Quote:

Originally Posted by Kyle2k

3.27 for auto, 3.45 for manual.

Somebody help me out here, as I'm not understanding something. If the manual SS is slightly lighter than the auto, has quicker gears than the auto, and has 20+ more horsepower than the auto, why is the auto slightly quicker to 60mph?

I know the manual catches up in the 1/4 mile time with a higher trap speed, but I'm kind of perplexed as to why it's not quicker than the auto.

THE EVIL TW1N · 04-25-2009, 03:35 PM

Quote:

Originally Posted by Shurenuff

Somebody help me out here, as I'm not understanding something. If the manual SS is slightly lighter than the auto, has quicker gears than the auto, and has 20+ more horsepower than the auto, why is the auto slightly quicker to 60mph?

I know the manual catches up in the 1/4 mile time with a higher trap speed, but I'm kind of perplexed as to why it's not quicker than the auto.

The gearing in the automatic transmission are WAAY more aggressive than the manual. Rear end gearing is only 1/3 of the gearing formula.

Shurenuff · 04-26-2009, 10:57 AM

Quote:

Originally Posted by THE EVIL TW1N

The gearing in the automatic transmission are WAAY more aggressive than the manual. Rear end gearing is only 1/3 of the gearing formula.

Ok, I see. So just for the sake of enlightenment, what are the other 2/3 of the gearing formula (I assume one of them is the actual transmission itself)?

UsedTaHaveA68 · 04-26-2009, 10:58 AM

Transmission and tire diameter.

MikeZ28 · 04-27-2009, 04:02 PM

Plus it's probably easier to lauch the automatic with less wheelspin.

Rodrunner · 04-27-2009, 08:06 PM

Oh, gear ratio. I wasn't sure where a first time poster was going with a rear end question thread.

Looks like you're covered, and welcome to the site additional Camaro_Psycho!

HINEY1 · 04-27-2009, 08:29 PM

So......Is anyone else considering a gear ratio change?
What else is available for the 2010 Camaro?

kbui · 05-17-2010, 03:46 PM

Here is a dumb question... Would a dealer put the 3.45 gear in a L99 if asked and still provide the full warranty?

*Camaro_Corvette* · 05-17-2010, 03:48 PM

Depends on how nice your dealer is.

Nice sig BTW.

Roger Ramjet · 05-17-2010, 09:31 PM

No matter where you had the gear changed, it would be hard for a dealer to detect the difference. But with just the gear change you wouldn't get the full performance advantage. The speedo will be off a couple MPH. And, in these cars all the part throttle shift points are done by vehicle speed. Therefore, the shifts will be too early. On an A6 car a trans tune is necessary to maximize the benefits of a gear change.

04-22-2009, 11:49 PM	#1
Camaro_Psycho Drives: 1981 Chevy Celebrity Join Date: Mar 2009 Location: Norwalk Posts: 44	Rear End Question Hey guys. This is my first post on the forum, but I have been reading the LS3 powertrain section for a while now and I was curious to what the gear ratio ofthe rear end of the SS trim? Does it change from the LS3 to the L99?

04-22-2009, 11:51 PM	#2
Kyle2k LVL 50 Troll Stomper Drives: 2010 Camaro Join Date: Feb 2008 Location: Indianapolis Posts: 3,463	3.27 for auto, 3.45 for manual. __________________

04-23-2009, 11:35 PM	#4
Camaro_Corvette 36.58625, -121.7568 Drives: Team 1LE Join Date: Mar 2008 Location: Earth Posts: 23,710 View My Garage	Welcome And yes, kyle is on his "A" game! __________________ I am seriously never serious vv V vv Next order of business

04-27-2009, 08:06 PM	#10
Rodrunner Senior Member Drives: 2010 SS/RS, '06 350Z Join Date: Oct 2008 Location: So. Maryland Posts: 2,326	Oh, gear ratio. I wasn't sure where a first time poster was going with a rear end question thread. Looks like you're covered, and welcome to the site additional Camaro_Psycho! __________________ 2SS/RS - Black/Black - CGM Rally Stripes - Auto - VIN 10171

05-17-2010, 03:46 PM	#12
kbui Drives: 85 Vette, 07 Escalade ESV, 03 GMC, Join Date: Nov 2009 Location: Austin, TX Posts: 927 View My Garage	Here is a dumb question... Would a dealer put the 3.45 gear in a L99 if asked and still provide the full warranty? __________________ ADM Performance installed and tuned: Maggie, Stainless Works Power LTs, ADM race cai, ADM ZL1 scoop Whiteside Customs Super Street 2 Package w/ coilovers BC Racing Coilovers and lowered, Whiteline Bushings & Swaybars MBRP catback exhaust, ZL1 bumper conversion, Drake billet shifter, Hurst paddles, NLP rear spoiler, OEM GFX, Vis Racing hood, ASA GT5 wheels

04-23-2009, 11:34 PM	#3
Gentry78 HOOK'EM Drives: 97 c1500/92 olds Join Date: Oct 2008 Location: Texas Posts: 5,279	welcome to the site and kyle2k is right on

04-26-2009, 10:58 AM	#8
UsedTaHaveA68 Drives: Hyundai Sonata Join Date: Feb 2009 Location: Little Rock, AR Posts: 497	Transmission and tire diameter.

04-27-2009, 04:02 PM	#9
MikeZ28 Drives: '04 GTO, '00 Z28, '95 Z28 Join Date: Mar 2009 Location: Austin, TX Posts: 225	Plus it's probably easier to lauch the automatic with less wheelspin.

04-27-2009, 08:29 PM	#11
HINEY1 TRANS4MR Drives: Camaro's & Corvette's Join Date: Mar 2009 Location: Kingston Ontario Canada Posts: 868	So......Is anyone else considering a gear ratio change? What else is available for the 2010 Camaro?

05-17-2010, 03:48 PM	#13
Camaro_Corvette 36.58625, -121.7568 Drives: Team 1LE Join Date: Mar 2008 Location: Earth Posts: 23,710 View My Garage	Depends on how nice your dealer is. Nice sig BTW. __________________ I am seriously never serious vv V vv Next order of business

05-17-2010, 09:31 PM	#14
Roger Ramjet Motor Head Drives: CTS-V Join Date: Feb 2009 Location: So MD Posts: 494	No matter where you had the gear changed, it would be hard for a dealer to detect the difference. But with just the gear change you wouldn't get the full performance advantage. The speedo will be off a couple MPH. And, in these cars all the part throttle shift points are done by vehicle speed. Therefore, the shifts will be too early. On an A6 car a trans tune is necessary to maximize the benefits of a gear change. __________________ History Camaro's: 83, 93, 95, 98, & 10.

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