S2K:-)

I have a question I was kind of pondering... If I were to buy 4.57 gears when I supercharged my car wouldn't I need to shift a whole lot more considering with the s/c I'd hit redline ALOT faster anyways? Would the 4.57 make a difference or would it just be overkill?

Thanks you guys,
Nick

IheartS2ks

I've heard that 4.57 gears + a stock S/C setup is perfect. The gears give you the lowend and the S/C gives you the top end.

I think once you decide to up the boost, it is probably a good idea to swich back to the stock gears. But then again you don't have to.

SilverKnight

I have that set up

WindchaserS2K

I run 9lbs with 4.57 without any problem plus I drive mine to work 3 times a week

stitos2k

SC'r and 4.57s here. Honestly, it took me about a week to get used to speed change at redline. The two go together like balogna and cheeze.

Last week with the top down I destroyed a G35c with the top down from a 70mph start with him getting the jump. I actually had to change lanes and go around him.

gomarlins3

Try SC W/AC and 4.77's. Now there is a lower end and upper end. Lot's of shifting, but that's not a bad thing.

S2K:-)

That's what I'm worried about, I don't want to be cruising around at 50mph in 6th gear at 8500rpms... Does anyone have a chart that shows the difference in shift points between gear ratios?

WindchaserS2K

with 4.57 Crusing at 50mph in 6th gear will be around 5000 some like that coulb be lower

gomarlins3

Here is the link from xviper. Took me long enough to find it.
http://www.turnzero.com/technical_resource...gear_calculator

I sent a PM to turbo power to see if we can get this link into it's own thread under the FAQ-Differential section since this question is asked often.

stitos2k

That info has been posted about ...10 MILLION DOLLARS... err times.

Search my boy.

4800ish rpms at 80mph on an ap1