i got an auto 35th ann. ss and im lookin to add performance parts to it...so far i have a loudmouth system and k&n intake. right now im between headers and ypipe, and gear set...but im also deciding between gear sets, 3.73 or 4.10...im worried about gas becuase its somewhat of a daily driven car...any advise is much apprecated..thanks

 

If you have a 6-speed, I'd do the 4.10s without question. I had them in my other Vette and it was a dream to drive, especially at 26-27mpg. 70+ mph @ 2000 rpm isn't bad.

Mike

 

4.10's definitely !! i was at futral earlier today and one of the guys over there is running 4.56's!!! he love them and wishes he would of done them prior to his 4.10's, but thats him. he is also running a 12 bolt so he can get away with it unlike us 10 bolt guys.

 

Read the post Mike. It says I have an auto35th ann.

Get a good 3500 rpm torque converter. You will gain more performance with that than any other mod and it will have almost no effect on you mpg unless you drive under 35mph all the time. Under light throttle the TC clutch will lock up just over 35mph and when it's locked it doesn't slip so mileage will be the same. Of course if you drive around with your foot planted in the TB then....well you know.

 

i agree with al

3x00 converter and 3.73 gears...and a trans cooler

it'll REALLY wake that car up

 

Auto = 3.73s

 

you say it's a daily driven car...in that case you should ask yourself what rpm you like running on the highway.

stock 3.23s at 75mph you're turning 2200rpm

3.73s you'll be turning 2550rpm

4.10s will have you screaming along at 2800rpm

doesn't sound like fun to me...

makes me ever so glad i have an m6.

stock at 75 is 1700rpm, with 3.73s its 1800rpm, and 4.10s its 2000rpm. still 200rpm less than the autos are stock. even some insane 4.56s only have it spinning at 2200rpm

 

i second that!!

 

Damn that's not bad at all. What's first gear good up to, though?

 

at 6000rpm...with stock 3.42 gears the m6's first gear goes to 50mph

with the 4.10s first gear is 42mph at 6000

with my cam, and the rev limit raised to 6600...first gear is 55mph...if i put in 4.10s it would be 46mph