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post #11 of 39 (permalink) Old 04-06-2009, 11:02 PM
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If the IRS center section and the powerplant are both solid mount a single u-joint coupling was what I recall seeing on mid engine sand rails. Never engineered one so I've no idea of tolerances....
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post #12 of 39 (permalink) Old 04-06-2009, 11:08 PM Thread Starter
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Those are not really on my radar as I am doing a preliminary research. Right now I want to be able to mate a transmission to to differential in lieu of a an expensive Porsche/Ferrari like transaxal. I want to be able to build this thing from mostly junkyard parts as much as possible.
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post #13 of 39 (permalink) Old 04-07-2009, 03:57 PM
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What the h*ll are you building?

Could you offset the two shafts and connected them via an industrial belt, or maybe something like a flat-link chain with robust sprockets? They use them on combines and such, it's basically a super-strong and low precision chain with cast steel gear sets.

I've coupled a transmission yoke right to a pinion yoke via a universal-joint spider, but it wasn't for anything to be used on public roads...

A MB-style flex-disc was mentioned; this seems like a good idea if you're looking not to destroy too many bearings during the service life of said go-cart/space capsule/bull-dozer.

I can't remember which car it was, but there was a production vehicle made by GM, I think, back in the 60's that used a flexible drive-shaft not unlike a very strong rotary-tool flex shaft; no U-joints! Maybe something like this would work?
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post #14 of 39 (permalink) Old 04-07-2009, 04:23 PM
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Those are not really on my radar as I am doing a preliminary research. Right now I want to be able to mate a transmission to to differential in lieu of a an expensive Porsche/Ferrari like transaxal. I want to be able to build this thing from mostly junkyard parts as much as possible.
Go to a junkyard and get a Porsche 924/944 transaxle. Back in the stone age we flipped a transaxle in a '65 Vair and mated up an old 283 mounted in the back seat with an engine cover out of a boat.
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post #15 of 39 (permalink) Old 04-07-2009, 04:24 PM
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I can't remember which car it was, but there was a production vehicle made by GM, I think, back in the 60's that used a flexible drive-shaft not unlike a very strong rotary-tool flex shaft; no U-joints! Maybe something like this would work?
You may be thinking of the old Dodge torque-tube.
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post #16 of 39 (permalink) Old 04-07-2009, 04:30 PM Thread Starter
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Go to a junkyard and get a Porsche 924/944 transaxle. Back in the stone age we flipped a transaxle in a '65 Vair and mated up an old 283 mounted in the back seat with an engine cover out of a boat.
924/944 is not for mid engined configuration, not even rear engined.
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post #17 of 39 (permalink) Old 04-07-2009, 04:31 PM
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post #18 of 39 (permalink) Old 04-07-2009, 04:34 PM Thread Starter
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Originally Posted by Benz Prodigy View Post
What the h*ll are you building?

Could you offset the two shafts and connected them via an industrial belt, or maybe something like a flat-link chain with robust sprockets? They use them on combines and such, it's basically a super-strong and low precision chain with cast steel gear sets.

I've coupled a transmission yoke right to a pinion yoke via a universal-joint spider, but it wasn't for anything to be used on public roads...

A MB-style flex-disc was mentioned; this seems like a good idea if you're looking not to destroy too many bearings during the service life of said go-cart/space capsule/bull-dozer.

I can't remember which car it was, but there was a production vehicle made by GM, I think, back in the 60's that used a flexible drive-shaft not unlike a very strong rotary-tool flex shaft; no U-joints! Maybe something like this would work?
I am chopping a Fiero in half
The rear half will be all custom tubular with a V8 at 90 degrees with the rear axle.
The body will be something out of Mad Max... As hideous as I can get it!
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post #19 of 39 (permalink) Old 04-07-2009, 04:34 PM
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Right you are! And I think it used half a V8 as a slant 4.
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post #20 of 39 (permalink) Old 04-07-2009, 04:36 PM
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I am chopping a Fiero in half
The rear half will be all custom tubular with a V8 at 90 degrees with the rear axle.
The body will be something out of Mad Max... As hideous as I can get it!
Toronado.
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