I have presented this question in tech..
Thread Starter
Drifting
Joined: Feb 2004
Posts: 1,250
Likes: 0
From: Katy TX
St. Jude Donor '08-'09
I have presented this question in tech..
but I want to get as much feedback as possible. For those that
have gone to 4.10's, with 6 speeds, just intake and exhaust
mods. If you ever had to do it again, would you go with the 4.10's?
If yes or no, give me reasons.
have gone to 4.10's, with 6 speeds, just intake and exhaust
mods. If you ever had to do it again, would you go with the 4.10's?
If yes or no, give me reasons.
Drifting
Joined: Jun 2006
Posts: 1,360
Likes: 1
From: West Grove Pa
I think the 4:10's are a perfect match with the 6speed. Started with intake and exhaust-then headers.1:85 rockers, etc. Without a doubt the gears where the biggest bang for the buck. With the A4 I wouldn't go more than 3:42's but with the 6sd it's been a lot of fun plus checking gas milage before and after I went from getting around 25.6 to around 25.2mpg. ECS did all the work and I wouldn't hesitate to do it again-only I would start with the gears and then work my way up.
Instructor
Joined: Jul 2007
Posts: 176
Likes: 6
From: Golden Colorado
I had a set in my old C4 M6, and at the strip they were great fun. And hard on the driveline with drag radials. The increase in mechanical advantage is amazing. What I did experience was redlining before the end of the track (stock internal LT1, 5200 RPM top), forcing a shift into 5th. When I finally broke the Dana 44 diff case in half with a hard launch, I replaced them with 3:73s. I eliminated the 4-5 shift, no loss of ET, and a more streetable car. That said, a C6 diff case is more robust, less likely to break, so that's less of a concern. But output shafts, U joints, half shafts are at risk as you lower the ratio, based on what I've learned.
Daily driving with 4:10s means 1st is unnecessary, you can easily start out in 3rd, go to 5th, then 6th. 3:73s still give great accelaration, but are more flexible. You'll have to decide, but I'll never go so low again on a street car. And my C5 is an A4, so 3:73s would be lower than I would go, 3:42s more like it if I choose to change the 3:15s. The A4 allows for a cushion, too, and consistent shifing makes for better times.
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
410's will give you a nice seat of the pants feel and the car will pull like nuts... but just remember, think of the bigger picture... If you ever add a lot of power , like a supercharger or heads/cam with big HP..you will have major traction problems unless you drive with slicks
I ended up going with 390's and am glad I did as they work well with my current power level, I can spin the tires, but I do have some traction left. Also remember 410's are very hard on the driveline if you are doing hard launches either at the track or on the street.
I ended up going with 390's and am glad I did as they work well with my current power level, I can spin the tires, but I do have some traction left. Also remember 410's are very hard on the driveline if you are doing hard launches either at the track or on the street.
Last edited by FrankTank; Jan 29, 2008 at 11:22 AM.
Safety Car
Joined: Jun 2004
Posts: 4,969
Likes: 532
From: Witness Protection Program Somewhere, USA
2026 Restomod of the Year Finalist
Also remember 410's are very hard on the driveline if you are doing hard launches either at the track or on the street.[/QUOTE]
Why exactly is this? Can't see the correlation.
Why exactly is this? Can't see the correlation.
Le Mans Master
Joined: Apr 2000
Posts: 7,218
Likes: 1
From: Cresskill NJ
[/QUOTE]Because of the gear reduction the car is accelerating quicker, and therefore placing a lot more strain on everything after the rear end, mainly the halfshafts.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Racer
Joined: Jul 2005
Posts: 269
Likes: 0
From: Atl Ga
Man. This is such a 
. 4.10s are great in a N/A m6. Expect to lose 2 mpg. Cuts a half sec off your quarter. Huge increase in seat of the pants. Great bang for the buck. Find someone local or at a car show who has them and go for a ride.
. 4.10s are great in a N/A m6. Expect to lose 2 mpg. Cuts a half sec off your quarter. Huge increase in seat of the pants. Great bang for the buck. Find someone local or at a car show who has them and go for a ride.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 36,838
Likes: 438
From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
Exhaust mods...just a cat back or headers too?
4:10's were to short for me...JMPO
3.90's are the perfect gear for a N/A Car, all the way up to heads and cam...
Peace
Chip
4:10's were to short for me...JMPO
3.90's are the perfect gear for a N/A Car, all the way up to heads and cam...
Peace
Chip
__________________
..................Click for
..................Click for