C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

gears!!!

Thread Tools
 
Search this Thread
 
Old Jun 29, 2008 | 06:26 PM
  #1  
james1990's Avatar
james1990
Thread Starter
Burning Brakes
 
Joined: Mar 2008
Posts: 1,015
Likes: 0
From: Nassau NewYork
Default gears!!!

im looking to put gears into my 08 z51 A6 , any feed back and opinions would be a big help thanks
Reply
Old Jun 29, 2008 | 06:38 PM
  #2  
k0bun's Avatar
k0bun
Melting Slicks
 
Joined: May 2006
Posts: 2,891
Likes: 1
From: NJ..."the way I saw it, everyone takes a beating sometimes."
Default

If you do a search you will get a wealth of information. Unfortunately you will have to weed thru all the BS to actually learn anything. You're best bet is to call this number and ask for Chuck.

914-332-0049


http://www.corvettes-of-westchester.com/main.htm
Reply
Old Jun 29, 2008 | 06:45 PM
  #3  
xstang's Avatar
xstang
Drifting
15 Year Member
 
Joined: Jun 2002
Posts: 1,682
Likes: 3
Default

If I ever do gears on my A6, I'll do 3.42s
Reply
Old Jun 29, 2008 | 07:31 PM
  #4  
welcome2try's Avatar
welcome2try
Safety Car
 
Joined: Jul 2006
Posts: 4,647
Likes: 1
From: Objects in your mirror are losing , Long Island, NY
St. Jude Donor '08
Default

Originally Posted by k0bun
If you do a search you will get a wealth of information. Unfortunately you will have to weed thru all the BS to actually learn anything. You're best bet is to call this number and ask for Chuck.

914-332-0049


http://www.corvettes-of-westchester.com/main.htm
Reply
Old Jun 29, 2008 | 07:32 PM
  #5  
knkali's Avatar
knkali
Melting Slicks
10 Year Member
 
Joined: Jun 2006
Posts: 2,690
Likes: 1
From: Northern Calif
Default

3.15s here. THE BEST mod to date
Reply
Old Jun 29, 2008 | 10:39 PM
  #6  
A-Pex's Avatar
A-Pex
Racer
10 Year Member
 
Joined: May 2008
Posts: 463
Likes: 4
From: Park City, UT
Default

Originally Posted by xstang
If I ever do gears on my A6, I'll do 3.42s
Except it's WHEN I do gears.

Reply
Old Jun 30, 2008 | 04:59 AM
  #7  
thesubfloor's Avatar
thesubfloor
Melting Slicks
15 Year Member
 
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Default

I've had both 3.15 and 3.42 gears in my A6 so allow me to chime in.

Performance-wise at the track or just driving around town, both will be an excellent improvement over the stock 2.56 or 2.73 gears. There is however virtually no difference between the 3.15 and 3.42's as to how fast it'll run and I have the timeslips to back it up.

On the freeway the 3.15's will get slightly better gas mileage than the 3.42's, but the 3.42's will make 6th gear very responsive to the point where if you need to pass somebody you'll be able to do it without having to downshift.

PM me if you have any other questions.

Christopher
Reply
Old Jun 30, 2008 | 08:09 AM
  #8  
Max@Cartek's Avatar
Max@Cartek
Drifting
 
Joined: Feb 2007
Posts: 1,446
Likes: 0
From: Cranford NJ
Default

Originally Posted by james1990
im looking to put gears into my 08 z51 A6 , any feed back and opinions would be a big help thanks
We've done a bunch and could get you all setup with a set if you like. Give us a call if you are interested.

Thanks,
Max
908.317.4496
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Jun 30, 2008 | 10:34 AM
  #9  
HP JNKEY's Avatar
HP JNKEY
Drifting
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jul 2001
Posts: 1,976
Likes: 4
From: San Diego CA.
Default

I went from 2:73's to 3:15's with great results.
I felt sorry that I didn't install 3:42's but Subfloor has confirmed that there is basically no difference in 1/4 mile performance. Thanks for that Christopher.
With the price of gas going up, install 3:15's and get the best of both.
Reply
Old Jun 30, 2008 | 11:13 AM
  #10  
james1990's Avatar
james1990
Thread Starter
Burning Brakes
 
Joined: Mar 2008
Posts: 1,015
Likes: 0
From: Nassau NewYork
Default

what is the difference between the different gears? i know that 4:10's are only good from a stop. i would like something all around better..i do not track the car

thanks for all the input
Reply
Old Jun 30, 2008 | 11:15 AM
  #11  
Tony B4's Avatar
Tony B4
Safety Car
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2006
Posts: 3,922
Likes: 4
From: Cheektowaga NY
St. Jude Donor '08
Default

Originally Posted by Finelee
I went from 2:73's to 3:15's with great results.
I felt sorry that I didn't install 3:42's but Subfloor has confirmed that there is basically no difference in 1/4 mile performance. Thanks for that Christopher.
With the price of gas going up, install 3:15's and get the best of both.
Christopher is the only person on this forum that has done testing with both 3:15,3:42`s with a stall convertor and has backed up his testing at the track!

Thanks Chris for all the information and the track results!

Here is a chart that Ragtop99 posted.


Last edited by Tony B4; Jun 30, 2008 at 11:30 AM.
Reply
Old Jun 30, 2008 | 11:45 AM
  #12  
DOUG @ ECS's Avatar
DOUG @ ECS
Premium Supporting Vendor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Default

Feel free to call the shop if you would like to discuss options and pricing. Here is our present specials, be sure to not over pay.


http://www.eastcoastsupercharging.com/Gears.html
Reply
Old Jun 30, 2008 | 12:11 PM
  #13  
007vette's Avatar
007vette
Heel & Toe
 
Joined: Jun 2008
Posts: 20
Likes: 0
Default

This may be a stupid question but how do you find out what your Gear Ratio is?? I have a 2007 Corvette Coupe 6spd manl.
Reply
Old Jun 30, 2008 | 12:18 PM
  #14  
thesubfloor's Avatar
thesubfloor
Melting Slicks
15 Year Member
 
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Default

Originally Posted by 007vette
This may be a stupid question but how do you find out what your Gear Ratio is?? I have a 2007 Corvette Coupe 6spd manl.
If you climb under the car, there's usually a sticker showing the gear ratio on the underside of the differential. It's pretty easy to see.
Reply
Old Jun 30, 2008 | 01:41 PM
  #15  
HP JNKEY's Avatar
HP JNKEY
Drifting
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jul 2001
Posts: 1,976
Likes: 4
From: San Diego CA.
Default

Originally Posted by 007vette
This may be a stupid question but how do you find out what your Gear Ratio is?? I have a 2007 Corvette Coupe 6spd manl.
All manual's have 3:42 gears in stock form.
Reply
Old Jun 30, 2008 | 01:46 PM
  #16  
thesubfloor's Avatar
thesubfloor
Melting Slicks
15 Year Member
 
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Default

Originally Posted by Finelee
All manual's have 3:42 gears in stock form.
Yes, that is true but a 3.42 in a manual transmission car isn't the same as one in an A6 car.
Reply
Old Jun 30, 2008 | 02:02 PM
  #17  
DOUG @ ECS's Avatar
DOUG @ ECS
Premium Supporting Vendor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Default

Originally Posted by thesubfloor
Yes, that is true but a 3.42 in a manual transmission car isn't the same as one in an A6 car.
but then the sticker on the rear would not be right anyway since it is an aftermarket build anyway.
Reply

Get notified of new replies

To gears!!!

Old Jun 30, 2008 | 02:10 PM
  #18  
A-Pex's Avatar
A-Pex
Racer
10 Year Member
 
Joined: May 2008
Posts: 463
Likes: 4
From: Park City, UT
Default

Originally Posted by thesubfloor
I've had both 3.15 and 3.42 gears in my A6 so allow me to chime in.

Performance-wise at the track or just driving around town, both will be an excellent improvement over the stock 2.56 or 2.73 gears. There is however virtually no difference between the 3.15 and 3.42's as to how fast it'll run and I have the timeslips to back it up.

On the freeway the 3.15's will get slightly better gas mileage than the 3.42's, but the 3.42's will make 6th gear very responsive to the point where if you need to pass somebody you'll be able to do it without having to downshift.

PM me if you have any other questions.

Christopher
Christopher, did you also have a stall converter installed with either of the above ratios? If so, for which set of gears if not both? Also, were your 1/4 mile times with/without the converter(s)?

Reply
Old Jun 30, 2008 | 02:11 PM
  #19  
thesubfloor's Avatar
thesubfloor
Melting Slicks
15 Year Member
 
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Default

Originally Posted by DOUG @ ECS
but then the sticker on the rear would not be right anyway since it is an aftermarket build anyway.
That is true, but at least you'd know what the car came with originally.

Having it still on there however is probably a good idea as you'll be less likely to draw attention to yourself if the car ever ends up on a lift at a dealership.
Reply
Old Jun 30, 2008 | 02:14 PM
  #20  
thesubfloor's Avatar
thesubfloor
Melting Slicks
15 Year Member
 
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Default

Originally Posted by A-Pex
Christopher, did you also have a stall converter installed with either of the above ratios? If so, for which set of gears if not both? Also, were your 1/4 mile times with/without the converter(s)?

Yes, I did have a 3000 stall converter with both of the rear ends and all of my times were with the converter.
Reply



All times are GMT -4. The time now is 07:16 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE