Originally Posted by red_baron06
So you think a 3.73 car will take the cake at the end of the day? Because at this point I think the in the middle gear (3.55s) may be the way to go. I think similar modded cars a 3.73 would have a hard time taking a 3.55 car. But as of now I'm playing the devils advocate lol.
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With a DOHC car, one that has more HP than torque and makes it's power at 5,500k RPM and up anything that helps bring you into the power band quicker is better.
With pushrod motors you have peak power and a broad torque curve starting as low as 4k RPM so you want to keep that power band longer with a taller gear.
Although this is useless if you have too much power, or not enough power and how you're putting it down.
I think I saw this somewhere but it's something like this for Mustangs:
350HP or less = 4.10's
350-450 = 3.73's
450-550 = 3.55's
550 and up = 3.23 or 3.31 in our case.