Quote Originally Posted by Adrian Euro View Post
Would you also have the same thoughts if all you wanted to do was take off the lights quickly and get to say the speed limit as quick as possible?
Quote Originally Posted by aaronng View Post
Using your example to get to a 60km/h limit, the stock 4.388 final drive will be quicker because you can reach close to 60km/h using just 1st gear. With a shorter final drive, you have to shift into 2nd. Same if you were going up to 100km/h, you can just barely get there in 2nd gear with the 4.388 but you would need 3rd gear with a shorter final drive.
Quote Originally Posted by Adrian Euro View Post
Then to me final drive sounds that its not really that great unless you want the for higher speeds?
Quote Originally Posted by aaronng View Post
It is better for 1/4 mile or track where you can hit over 150kmh. No much point for street. A lightweight flywheel is more worth it. But since you have everything taken apart, you can always try the final drive and report back to us if you like it or not.
I have to agree with Aaron, the final drive as i mentioned is better with drag racing style driving where the final drive shortens the gear ratios quite a bit as in the application of dragging you are trying to get as much power/speed out as possible in little time.

On street how often are you trying to reach high speeds, by improving your driving/shifting skills you get better gains, then just a final drive.