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Originally Posted by MarkM66
Hell, if you want to try it, try it. I'd like to hear the results.
Be aware of your Critical Driveshaft Speed before you put an overdrive in that thing.
Probably why most high speed cars use 1:1 with high ratio rear end gears instead of 4:11's with a .50 overdrive.
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Actually, virtually all the guys I knew going really fast ran overdrive, including myself. I ended up running a close ratio T-56 6-speed w/ 3.08's in the rear and never had a problem. Clutches are a bit of a challenge.
Driveshaft RPM definitely is important. I always ran a safety loop (which rules didn't require) and ended up running a carbon fiber shaft which is much safer in a crash as they simply disintgrate.
John Buscema
XV Motorsports
www.xvmotorsports.com