Gearing Questions from "Newbie"
Thread Starter
Racer
Joined: Jun 2007
Posts: 308
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Gearing Questions from "Newbie"
I'm sure this question has been asked more times than not, but bear with the "newbie" on this one.
2007 C6 6Speed. Window label says performance axle ratio.
Just enjoying the vehicle and not interested at this stage of my life in beating the rest of the world at each stoplight. (what am I doin here?)
From what I can tell the 3:90 differential ratio would liven up the gear changes and still give decent RPM's at 75-80 steady cruising?
I believe 4:10 would be too much?
I would like to eliminate some of the "dead zone" feel in the different gears. I miss the old close ratio trans and 4:11 feel that I had many moons ago in a '64 365 HP Convertible. In Northern NJ you are always driving in stop & go type situations and you're always running through the gears (which is fun). I'm going to be installing Borla Stingers and just a new final gear ratio for fun.
Any advice would be appreciated.
2007 C6 6Speed. Window label says performance axle ratio.
Just enjoying the vehicle and not interested at this stage of my life in beating the rest of the world at each stoplight. (what am I doin here?)
From what I can tell the 3:90 differential ratio would liven up the gear changes and still give decent RPM's at 75-80 steady cruising?
I believe 4:10 would be too much?
I would like to eliminate some of the "dead zone" feel in the different gears. I miss the old close ratio trans and 4:11 feel that I had many moons ago in a '64 365 HP Convertible. In Northern NJ you are always driving in stop & go type situations and you're always running through the gears (which is fun). I'm going to be installing Borla Stingers and just a new final gear ratio for fun.
Any advice would be appreciated.
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Same issue with me. I went 4.10 and did a 350 mile trip yesterday for the first time. I was pleased but being that the jury is still out (only have had the car 4 days since the install) I will reserve judgement.
Play with this:
http://www.xse.com/leres/ss/calculator.html
Play with this:
http://www.xse.com/leres/ss/calculator.html
Safety Car
Joined: Mar 2005
Posts: 3,639
Likes: 8
From: Madison Wisconsin
St. Jude Donor '08
I'm confused, as far as I know there was no performance axle for the 2007. Just the 342 for the manual and the 259 for the auto. The 2008 has a performance axle option for the auto but they didn't have that in 07.
Safety Car
Joined: Mar 2005
Posts: 3,639
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From: Madison Wisconsin
St. Jude Donor '08
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
The 3.42 rear end and 'base' transmission gearing is the same as in the C6 Z06....it is the close ratio transmission compared to the wider ratio Z51 transmission gearing (and there are advantages to this setup).
I can't imagine dead spots (even in the stock C6) but I can understand wanting a bit more power. IMO I'd suggest trying to get more performance from your engine versus changing the gear ratio in the rear end.
I can't imagine dead spots (even in the stock C6) but I can understand wanting a bit more power. IMO I'd suggest trying to get more performance from your engine versus changing the gear ratio in the rear end.
