 OT: New Project - Rotery Question, 13b & VW trans. conv. into Fiat 850 |
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| Mike D. |
 Nov 22 2005, 12:32 PM
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OK, It runs now, and pretty good too!  Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None 
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So three of us car guys at work have come up with a project car for a Fiat 850 body that one of the guys owns. He was planning to use a Smart TD with Auto Shift trans and has decided now that it wont fit, so he is putting it into a Fiat X1/9. So of course I suggested we T4 the Fiat 850. Then the third guy came up with the rotery. Looked it up and found that others have done VW conversions to Fiat 850's, but we didn't find any roterys done.
My question here is what gears should be used with a 13b to push a 1800 lb. car? What gears are being used in 914 roterys? stock? Will the 200 lbs. make a big difference in gearing? -Mike D. |
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| Rotary'14 |
Nov 22 2005, 12:55 PM
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Senior Member Group: Members Posts: 753 Joined: 24-April 05 From: Los Angeles Member No.: 3,977 |
Hi Mike,,
When I had a running 13B streetport (220 HP) in a 914, I found the stock gearing in that gearbox complimented my engine very well. The gears were a tad long but revving to 8k was no problem. I assume the car weighed about 2100 lbs, but it was never weighed. IMHO I don't think 200#s will make too much difference. I hope this helps a little. -Rob |
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| Mike D. |
Nov 22 2005, 01:05 PM
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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yes, thanks - obviously, I'm not going with a 914 trans. but some later VW with CV joints. I will have custom length half shafts and I'll have to figure something out with the wheel hubs...
Here is the car, It is the white one. Not a great pic.... |
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| Mike D. |
Nov 22 2005, 01:06 PM
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OK, It runs now, and pretty good too! Group: Members Posts: 1,445 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None
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oops...
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| lapuwali |
Nov 22 2005, 01:41 PM
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
Aren't all the 850s swing-axle? If you go with CVs, what are you going to do about a rear suspension? Fabricating something?
Certainly, I'd not pump much power through the stock swing axle suspension. However, if you fabricate something more sensible (perhaps a DeDion arrangement), then you'd have a nice car, probably the most fun 850 on the planet. If you went with a VW swing-axle transaxle, I'd probably not do a hot rotary, but something more like a mild 12A, at most. Or perhaps a moderate T1. Even then, I'd want to devise some kind of zero-roll setup in back. Powerful swing-axle cars are just plain evil. 100hp would be pretty much the upper limit unless you're a masochist. |
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| neo914-6 |
Nov 22 2005, 02:00 PM
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neo life Group: Members Posts: 5,086 Joined: 16-January 03 From: Willow Glen (San Jose) Member No.: 159 |
A friend of mine bought a '67 with a turbo'd 124 motor (I think 1.8.) Sweet cars!
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| scotty b |
Nov 22 2005, 05:58 PM
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
(IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Need to do this to the 850 too (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
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