Cornay Joints

[racer951]

Without filling out the quotation form, does anyone have a BALLPARK price on these things? I realize there are 30,50,90's as well as 70 degrees for u-joints so the price range must vary a lot. I also realize it depends on application, and drive train compatability, thats why I'm looking for a ballpark. If possible a price on the 30 or 50 degree joints would be best.

500 per, 5,000 per? Any guesses?

[billymanfroy]

I've talked to them a few times over the last two years or so, and I seem to remember something along the lines of $700 each? Keep in mind he does doubles in some situations.

They were not yet available the last time I talked to him, and they also DO NOT like RPMs over 3-4K, so that basically ended our quest. We turn over 7,000 in third, which is 1:1. Good luck!

Billy

[Chris_Wilson]

If you are using them for an axle shaft then the rpm is much lower.
For example a 37" tire at 110 mph is only 1000 rpm.

[Ryan_P]

Corey, are you looksing for the U-joint style or for cv's?

http://www.drivetechnologies.com/index.html

[racer951]

Ryan - CV's

What is the usual ratio of motor RPM to axle RPM on a buggy? I wouldn't think 1:1 like Billy's.

[nimrod]

Has anyone run these lately? Anyone have any price ranges, info, reliability or such?????

[partybarge_pilot]

There was a driveshaft place at the last off-road expo that had them on display. I don't know if the price has come down or not. Hopefully they cost less than the ones they ran on Big Mac.......

[nimrod]

They seem like they would work great on a buggy. Is the price too high? The video on the website of them on Big Mac was pretty dang impressive......

During my search I ran into a forum about full size broncos where they said they were not tough enough for a bronco. That TT's are real light and the abuse that a full size bronco dishes out rock crawling is a lot higher than that of a Trophy Truck.......I just moved on.......Too funny.......

[Wild bill]

I attempted to contact Cornay four times to get a quote. Never got a return call or e-mail. Therefore, I gave up.

[FABRICATOR]

Ryan - CV's

What is the usual ratio of motor RPM to axle RPM on a buggy? I wouldn't think 1:1 like Billy's.
A ratio of 1:1 is common for the transmission and drive shaft. Corney advertises drive shaft assemblies on their website. Axle speed is usually a little under 1/4 of that.

I looked into the Cornay heavily about the same time as MacPherson (BigM). My opinion is still the same. There is no magic as they are still just a U-joint. No one really knows what the hell they were doing on the front of Big Mac. All that is known is that they transmitted some torque and managed to stay put. They may work fine for a driveshaft, pretty much like a double-cardan. But I saw them as a bit of a farce for any serious rear final drive.