LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

final drive ratio

Old Feb 23, 2007 | 10:27 AM
  #1  
kissmyss03's Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Feb 2006
Posts: 485
Likes: 0
Default final drive ratio

so chevy. com says its 2.93 for the ss model but GM Dealer Service Information site says 3.29 so who is right
Reply
Old Feb 23, 2007 | 11:01 AM
  #2  
BADDLS1SS's Avatar
TECH Enthusiast
20 Year Member
iTrader: (22)
 
Joined: Oct 2003
Posts: 648
Likes: 0
From: Slinger WI
Default

I think there was a topic on this already a month or two ago. Its a 3.29 axle ratio, but the drive chain reduction makes it 2.93 in the end. All i know is mine rings out to 61 mph in 1st spinning to 6500 RPMS now lol

NO BOG on the 1-2 anymore.
Reply
Old Feb 23, 2007 | 03:00 PM
  #3  
eddiemoney's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Sep 2006
Posts: 716
Likes: 0
From: Eastern Iowa
Default

Oh here it goes again. . . . .
Reply
Old Feb 23, 2007 | 03:15 PM
  #4  
06 SS's Avatar
TECH Fanatic
 
Joined: Jan 2007
Posts: 1,029
Likes: 0
From: LITH, IL.
Default

Both are right. 3.29 final gear, 2.93 effective final drive via non 1:1 chain drive.


Took a calculator to it and even allowing for a generous amount of error with my tach and speedo, my '06 definitely has an effective ratio of 2.93. No where close to 3.29.
Reply
Old Feb 23, 2007 | 03:24 PM
  #5  
SILVER LS4's Avatar
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default

Originally Posted by 06 SS
Both are right. 3.29 final gear, 2.93 effective final drive via non 1:1 chain drive.


Took a calculator to it and even allowing for a generous amount of error with my tach and speedo, my '06 definitely has an effective ratio of 2.93. No where close to 3.29.
sorry to rob this thread, but what did you do to the lt-1 caprice. I had a 94 Caprice Classic, loaded and with leather. Lightly modded, fun car, real sleaper except for the headers, no cats and flowmasters.
Reply
Old Feb 23, 2007 | 03:25 PM
  #6  
SILVER LS4's Avatar
TECH Apprentice
 
Joined: Feb 2006
Posts: 359
Likes: 0
From: Ohio
Default

Originally Posted by BADDLS1SS
I think there was a topic on this already a month or two ago. Its a 3.29 axle ratio, but the drive chain reduction makes it 2.93 in the end. All i know is mine rings out to 61 mph in 1st spinning to 6500 RPMS now lol

NO BOG on the 1-2 anymore.
And you are correct!!!
Reply
Old Feb 23, 2007 | 04:05 PM
  #7  
kissmyss03's Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Feb 2006
Posts: 485
Likes: 0
Default

Final Drive Ratio
2.93

Overall Final Drive Ratio
3.29

that is waht the gm dealer website says
Reply
Old Feb 23, 2007 | 04:11 PM
  #8  
06 SS's Avatar
TECH Fanatic
 
Joined: Jan 2007
Posts: 1,029
Likes: 0
From: LITH, IL.
Default

Originally Posted by SILVER LS4
sorry to rob this thread, but what did you do to the lt-1 caprice. I had a 94 Caprice Classic, loaded and with leather. Lightly modded, fun car, real sleaper except for the headers, no cats and flowmasters.
RAISS, 3.73, 400lb Eaton, LT4 KM, programming, 2800 stall Edge, built 4L60E, 255/60's, exhaust, springs/1.6 rr's, composite valve covers, etc. Getting a cheapie rebuild (238K on it) and a 395 cam this Spring after it warms up. Going for all-out torque, after the cam I think it will take the LS4 in the quarter if I can get traction.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 23, 2007 | 06:16 PM
  #9  
nighthand's Avatar
Launching!
 
Joined: Jun 2006
Posts: 254
Likes: 0
Default

You are doing 60 in first?

Cannot wait to see your 1/4 numbers.

My parts are slowly coming together.

Who knows? Maybe a turbo in the future....
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:23 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE