clemsonfan1992

Ok I have an 04 M6 Looking for a better bottom end for the GTO... Just wondering about some things. What would be the best gearing?
couple of things to consider:
Not taking to the track
get up to speed quicker
Not loose my top end speed

What has been your experience with these gearings in your GTO??

johnrobbins

I would suggest 3.73's. Great pull and won't be to noisy

Slvr00Bird

iTrader: (2)

3.90.. nuff said.. I was gonna throw that gear in my a4, so you should be fine with your stick..

as for not loosing any of your top end.. are you max mph'ering the thing or what? do you really need to use that much mph?

Slvr00Bird

iTrader: (2)

None should be noisy with a good setup and gear pattern..

clemsonfan1992

Nah. I just dont want it to be a dramatic drop. I know stock GTO's will top out 163-165 stock. I just don't want it to be a major drop.

Gearing is expensive!!! NO one makes them for our cars. I found mustang gears for 150.00. GTO with a install kit 700.00

Slvr00Bird

iTrader: (2)

Damn that's expensive!! Yea.. i'd go with the 3.90's out of those three.. prob 410's if those were an option..

and think of the time you spend in your car and where the rpms/speed that you spend the most time at... is it getting off the line and lower rpms such as daily driving, or top end, ***** to the wall runs where you're mph'ering? You'll enjoy the steeper gears and don't give anythought to high end loss..

SSponyh8R

3.90s

clemsonfan1992

4.10's are possible but also dont wanna kill Gas Mileage. My friend Just changed to 3.73's in his 2V GT Pony and He was running 100 in 3rd gear. I was like WTF. It runs good too.

Squirts11

iTrader: (14)

If it were an auto, I'd say 3.73s, but with you M6 I would go AT LEAST with the 3.90s (perhaps 4.10s would be a better choice). You'll still get great gas mileage and won't hurt your top end enough to even notice.

clemsonfan1992

Im liking the 3.91's Just gotta find the funding. lol

Summerwolf

iTrader: (3)

There are 3.91's.....

I have 3.73's and they're great. I have a cam and some 243's. No loss of top end, thing hauls *** on the street for what it is. I honestly don't know if I'd have done 3.91's or not the 3.73's are great.

breze84

3.73's are good for A4's.... 3.91's are good for M6's...

1904gto

iTrader: (4)

x2
it all depends on wat you want really too
if u realllllllllllllly car bout gas mileage or wat

rjwz28

3.91s shouldn't really hurt your top speed at all, in theory. Most T-56 cars top out in fifth because they don't generate enough torque to accelerate beyond the top of 5th gear once you shift into 6th. However, with 3.91s you might end up shifting to 6th at a lower speed and attaining your top speed in 6th gear. Your top end could be higher, lower, or the same as it was prior to the gear change. As far as gas mileage goes, honestly, who cares but seriously, the performance increase should outweigh the mileage decrease.

DaSkinnyGuy

end of story sounds like you still want to be able to run up to about 160ish put 3:73's in it even if you are an M6 you will pick up speed quicker and still be able to run a good top speed. I have 4:10's in my m6 and getting to 160 isnt the same back when i had the 3:42's. I wish i would have put 3:73's. If you were using the car alot at the track then 3:90 or higher would be better for that.

Summerwolf

iTrader: (3)

I have 3.73's and they're behind an M6, its a good middle ground IMO of everything.

6.0monsta

iTrader: (7)

427+3.91+a4=ftw!

Bluhaven

iTrader: (1)

I've got the 3.73's and wish I would have gone the 3.91's.(a4) Definitely go with the 3.91's.

Kevin

Irocem99

Where did you guys get the gears and do you have any gear whine?

breze84

????? Lol