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914World.com _ 914World Garage _ Any other ring & pinions besides 7:31?

Posted by: Cloudbuster Sep 15 2004, 09:35 AM

According to this link,

http://members.rennlist.com/chuxter/901&915ratios.htm

there is an optional 7:27 ring & pinion for the 901 transmission. Or is it 915 specific? Has anybody actually dealt with one?

Yes, I know I could just move up to 16 inch wheels, and have more options in tires / gearing. Just thinking out loud, that's all.

Thanks

Posted by: davep Sep 15 2004, 01:48 PM

They were an option, mostly for race purposes. I'd expect they are more rare than a 904 mainshaft. (Those I have seen.) That is, unless it was standard in some gearbox, but I don't have my tables available. I would check those places that sell trannys and gear sets.

Posted by: Sammy Sep 15 2004, 03:39 PM

Your pinion is acutally part of your pinion (or output) shaft.
To change the ring and pinion you need to change the ring and the output shaft.
I don't know of those existing, except maybe on the 904.
If they are out there they should sell a lot of them unless they are cubic dollars.

Posted by: brant Sep 15 2004, 05:00 PM

Yes they are available...
only in a couple of differnt sizes (ratios) though

PCA club racers like them in the stock production classes, because the rules do not allow gear ratio changes, but do allow pinion changes....

I know 2 production class PCA club race cars using different pinions. One is a -6 and the other a -4

brant

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