Trans ?

[jim_moulton]

Question to pro-lite racers. What manual trans is the best choice. G-force? If so what model do you run? Thanks Jim

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[prolite#7]

We use the G force GF-5R works real well in prolites

[jim_moulton]

We use the G force GF-5R works real well in prolites

Thanks that was quick. What clutch, 4 or 5 speed?

[prolite#7]

Goldstar clutch , 5 speed but you do'nt need 5th

[Pro-Lite Brian]

Jim,

There are ~4 different clutches being used in current Pro-Lites. Gold Star single disk, Tilton 7.25" Metallic single disk, Tilton 5.5" Carbon-Carbon dual disk, and QuarterMaster 5.5" Carbon dual disk. The multi disk clutches have a longer life, but transfer more shock than the single disk set-ups.

[jim_moulton]

Thanks for the info. Are there plenty of gear ratios available.

[prolite#7]

Call bubba at g force transmission ,gears depend on what rear ratio you are running. They can fax you a ratio sheet

[FarrisMotorsports]

You can also try Liberty....same as a GForce but easier to deal with from what I've heard.

[prolite#7]

I agree with that g force is like talking to a different country

[Pro-Lite Brian]

Both Liberty's and G-Force have gear charts on their websites. They have hundreds of gears for each transmission. Liberty's has different tooth profiles/ ratio charts depending on the application. G-Force has one ratio chart. Any gearing between about 3.2:1 and 1:1 can be done in both boxes.

Pro-Lites tend to run a 4th gear with some additional reduction to help get the effective final drive ratio above what can be done safely with a 1:1 high gear... Older Pro-Lite's have a steeper ring and pinion and less underdrive in the transmission...

I just rebuilt another racer's G-Force that had around a 2.3:1 first gear and a 1.25:1 Fourth, but that was an older set-up that probably runs a ring and pinion over 6:1.

Jim, I'd be glad to give you a little insight if you choose to run a manual in your new project. I've worked with aftermarket transmissions for quite a few years. I even went to England to be trained by one of the manufacturer's... Anyhow, I think you've got the right idea!