I agree with Mitch.MitchGT said:I would say about 3.25 or 3.5 to one,unless you are using slicks or something. I put in 3.89 to one in my car when I thought I was going to put in an automatic.I put in a five speed instead, and with the 3.27 to one first gear it is hard to leave hard without blowing away the tires.If your car is stock then first gear times rear is probably something like six to one.With a five speed and the same rear gears it would already be more like nine to one. Thats about fifty percent more without changing the rear. If you try that first and decide that its not quick enough off the line, then add more rear gear(3.5 or 3.25). Don't do what I did by changing both at once, all you'll do is make first gear useless.
5th gear ratio only matters if you want to run slicks at the dragstrip IMO.65 fastback said:What is the your 5th gear ratio? This will make a big difference in your rear gear selection.
T-5's come with 5th gear ratios of .90, .80. .70 and .63. If your 5th gear is .9 or .8, a 3.25 or 3.55 rear will provide a nice final drive ratio, but if your 5th gear is .63 you may want to run 3.73 or even taller.
Tim
Hack said:5th gear ratio only matters if you want to run slicks at the dragstrip IMO.
My point is that with 2.73s your final drive ratio will be plenty slow, so the final drive ratio doesn't matter. I run about 1500 rpm at 65 mph, which is plenty slow. I usually want to shift down to accelerate on the highway.65 fastback said:I wouldn't think you would even make it into an overdrive gear in a 1/4 mile pull. The 5th gear shouldn't matter at all at the dragstrip.
But the rear gears and 5th gear will make up your final drive ratio in highway driving.
Tim
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