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VHR + FD Gear Ratio upgrades - 3.9 and 4.08

Originally Posted by ssqpolo i agree. FD gear mods are pretty cool, but i drive on the highway alot, so i dont wanna be cruising at like 4500-5k rpm. oil

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Old 04-19-2009, 06:00 PM   #8 (permalink)
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Quote:
Originally Posted by ssqpolo View Post
i agree. FD gear mods are pretty cool, but i drive on the highway alot, so i dont wanna be cruising at like 4500-5k rpm. oil temps are all ready high

It would not be anywher near that high. I used a gear calculator, and with a 4.08 @ 70mph in 6th would = 3000 rpm.

check out the link below for reference
[link]http://www.kabamus.com/garage/gears.html[/link]

I think this would rock, however, the more I think about it this might throw off the SRM more then a flywheel. The SRM system must have a preloaded wheel speed vs gear table. It probably see's wheel speed "x" for gear "y" and revs to rpm "z". The wheel speed will be off by 10%, meaning it would have to rev 10% higher for a given wheel speed and gear. So it might be 10% off on the rev match to engine speed. Then again I might be completely off on my assumptions on how the SRM works. Either way, I can't Imagine 10% off would make a huge difference in smoothness of the system. If you manually heel toe like a pro, I bet most are still off by a few hundred RPM. Anyhow, some needs to break the seal and try this out. It will be killer for NA setups.

Last edited by KLRCADI; 04-19-2009 at 06:33 PM.
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