This was posted by another member at minibuggy.net. Watch the video on the left side of the screen as well, pretty damn cool...

http://www.cvcoupling.com/

That's pretty cool. But if you notice in the very last demonstration in the video it doesn't look like it allows much angle.

I emailed them as to the max angle can operate.

That is pretty sweet. It seems to solve all the issues. My only concern is it will add $10k to each car.

This looks interesting - But again its a little out there on design -and testing was weak in my opinion - If they want to send me one I 'll hook the 200 shot of nos to my big truck and go give it hell - Its barely a rapid design at this point- It looks english to me - ? We will see- Jess

it looks interesting but there is alot going on in that thing...

and i think it's from australia....

jjd

if the design is strong then it has tremendous potential to make a lot of money

And It does look like the corney Joint/bigelow joint that failed to bring new ground- Jess

Wow that joint is huge!!!! however, it looks like it works awesome. Very efficient. Curious abouts its max angle and durability. looks like it could be the next big thing

The Thompson Coupling will operate to 20°.

hehe - 20 degree's is a joke- JESS

The firs part of your post reminds me of an old chech & chong record I used to have ... it looks like it has a lot mass to it but never the less it's a cool idea but looks like he's going after general automotive and aircraft industrys.

lots of great points.

Great concept if it could angle more than 20*

o.k. cool design, but in a car and the friction he is talking about,,,, how often are you turning to cause this much friction and wasting fuel? and will it hold up in SAND! or would you need a special sand sealed boot?

I think you are missing something, turning, in our terms, is axle angle under compression/extension which is basically 100 percent of the time. Far as the boot, this looks to be 2 u-joint type pieces. It's a u-joint in a cage which is basically another big u-joint, so like u-joint axles, the needle bearings are sealed in the caps and don't need boots...

Who said it only goes to 20 degrees? Looking at the design, I think it could go way past that. The 20 degrees people are reffering to appears to be the last demo in the video where it was holding up 1.5 tons and spinning freely. That kind of load is never on a cv or u-joint, I think they had it at that angle because any more and it prob. couldn't take the side load on the unit. That is alot of weight and would break any joint and besides, our application never sees that kind of stress, just torque at angle, not sheer weight or heavy pulling trying to rip it apart, it would be used with a splined shaft for out application as well which means it sees no side to side load...

The guy who emailed me back.

Yoshi, if you go back and read this thread again, Permagrin posted that he emailed them to ask what the max angle is. Then he came back and posted their response... 20 degrees.

duh, lol. I forgot it was called a Thompson coupling, I thought he was talking about another coupling that jess mentioned that didn't take off. 20 degrees, that's a bit weak but if they could be doubled up?

Until we learn more about these I'll be cautious and go with the old adage... "If it looks too good to be true..."

damn, that's a good saying, wish i'd uh heard that one for I got married

My money is still on the torvec cv,.. 40 degrees baby.....

http://www.torvec.com/library_images.html
[attachmentid=120469]

Hey yoshi One thing to think about buddy- If we can't keep a boot on a 930 at 26 degree's - Why would we be able to do it with that c/v ? Jess

Just imagine not having all of the HP losses thru the CVs that everyone is experiencing right now.



People are claiming they are losing 28- 32% of their alleged 500 to 1200hp. So if they could get a frictionless CV joint, they would instantly gain 140 to 384 hp, huge gains for free!!

There are plenty of auto front wheel drive cars hittin 40 degrees when they turn. The boots don't have isues...

What like a suburu? those eat boots like there's no tomorrow- Jess

20* isn't that bad. What are normal Cv's good for like 28 degrees or something?? If they get around 25* I'd be willing to sacrifice some of my wheel travel. Say if i went from 24" to 18" inches I'd still do it. But thats just me, I really prefer things that are efficient.

There's alot of cv boots on cars that hold up just fine. People aren't going into the dealership every 2 weeks to get boots replaced on a car that's stock, companies just don't do that or they wouldn't sell any cars...

Its not like those c/v's are running at a constant 40 either yosh- Only when they turn - your looking at a constant 40 degree's on these cars - You got a magic c/v boot we don't know about ? Jess

Hey Jess. Why are you trying so hard to make any idea of a better Cv sound bad? Sell your product by building a good product. Not by bad mouthing the other products that are out there. imho if you keep posting like they way you did in this thread I would never buy axles from you.

Now back to the topic, sorry for the hijack.

Just making refrence to the c/v issue's I think are issue's- I built c/v's for years and I guess I got a bit of a bad taste in my mouth- I guess I will suck it up and shut up about my opinions- Jess

magic boot, naaa. I don't know about anything you don't, but if there's a joint that can move 40 degrees, wouldn't be long before a boot to cover it would be made. Something stretchy, maybe an elastic boot of some strong material or kevlar reinforced. There is stuff out there for it, maybe not used for this application but something will work if adapted....

maybe someone will adapt a series 30 boot- I'm sure those are cheap hehe- The big question is this -What will they cost and what will they do? So in my mind I was really weighing the cost and function factor - It may have came across as slamming c/v 's - But there actually may be a bit to to talk about -Seing how a series 30 shaft set-up is kinda pricy- What ever- Jess

Yoshi, Will the torvec CV bolt up in place of a 930 CV? How much are they? The web site says "Interchangeable"

Buddie