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Offline fabr

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Re: CV Design Questions
« Reply #15 on: November 13, 2009, 11:17:09 AM »
Quote from: BDKW1 on November 13, 2009, 10:12:30 AM
Going wider will cut down on the amount of max angle they get. The axle will hit the outer housing sooner. If you have minimal plunge and clip the axle on both sides of the star so that it doesn't move that much, you can neck the axle down for a little more clearance. If you chamfer or thin down the outer housing for axle clearance you can get 32*. The problem is, the more angle you run the harder it is on the cages and the more heat you build. Going past 28* on a 930 will become a very expensive learning lesson.
That was my thinking but ya never know till ya ask.
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Offline fabr

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Re: CV Design Questions
« Reply #16 on: November 13, 2009, 11:19:35 AM »
Quote from: BDKW1 on November 13, 2009, 10:17:31 AM

GKN sells fixed 930's. The outer housings are a little thinner but the rest is diminsionally the same.
 
Here is a link the the GKN catalog. http://www.rowland2.com/pdfs/cvdisc.pdf
 
"930's" are size 15 CV's and 934 are size 21. They have both plunging and fixed in this catalog.
What do you mean by thinner? Thanks for the link.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline BDKW1

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Re: CV Design Questions
« Reply #17 on: November 13, 2009, 12:16:40 PM »
Thinner as in not as thick  ;D  They are .375? thinner as in they don't need to plunge so the housing can be thinner. You may need shorter bolts........
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Offline BDKW1

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Re: CV Design Questions
« Reply #18 on: November 13, 2009, 12:19:33 PM »
Also, just for giggles. A 934.5 or 935 is the same thing as a 934, the stars are just broached for 35 spline. Due to the increase in axle diameter they yield less angle then the 33 spline unmodified 934's......... The series 30 is where it's at...........
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Offline fabr

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Re: CV Design Questions
« Reply #19 on: November 13, 2009, 12:48:54 PM »
Where are you seeing a size15 that is a type 117 shaft? Smallest I see of that axle configuration is a 21. Maybe I'm blind. Point me in the right direction as I'd really like to run that set up.
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but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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Offline BDKW1

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Re: CV Design Questions
« Reply #20 on: November 15, 2009, 05:19:29 PM »
Quote from: Masterfabr on November 13, 2009, 12:48:54 PM
Where are you seeing a size15 that is a type 117 shaft? Smallest I see of that axle configuration is a 21. Maybe I'm blind. Point me in the right direction as I'd really like to run that set up.

Page 8 type 174 for plunging and page 16 type 172 for non plunging.
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Offline fabr

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Re: CV Design Questions
« Reply #21 on: November 15, 2009, 06:22:19 PM »
Type 174 on page 8 shows shaft angle max of 10 degrees. That's a 930 I assume? Yet we get 25 degrees with the. How are they determining max angle? By the max that will have a long and happy life?  ;D
 
Type 172 on page 16 shows size 21 as the smallest. I'm lost here I guess. Help me out ,none of this is making sense to me .
 

It seems to me the type 117   shaft on page 15 would be the thing to have but size 21 is shown as the smallest on page 16. Are they offering size 15 in that  type 117 configuration  not shown in the catalog?
« Last Edit: November 15, 2009, 06:44:13 PM by Masterfabr »
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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Offline BDKW1

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Re: CV Design Questions
« Reply #22 on: November 15, 2009, 07:10:55 PM »
They determine the max angle buy the amount of miles it needs to go. A lot of the things we do with them off road are not recommended by the factory. Look at the torque ratings for them if you really want to be scared. Keep in mind they max ratings for these are set up for a car that has a 100K mile + life expectancy with a healthy safety margin.
 
For some reason the size 15 non-plunging isn't in that catalog. They do have them though, I have bought them. You can figure out the PN from the chart on the page......
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Offline fabr

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Re: CV Design Questions
« Reply #23 on: November 15, 2009, 07:27:45 PM »
I was thinking that was the case. Who do I contact to get them?
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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Offline fabr

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Re: CV Design Questions
« Reply #24 on: November 15, 2009, 07:30:48 PM »
Have you seen the new sx series of cv's? Supposed to be 40% more effecient and stronger by 8%. Hmmmmmmmmmmm.................................   
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

Offline Wyattboche

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Re: CV Design Questions
« Reply #25 on: November 16, 2009, 09:04:32 AM »
Quote from: Doug Heim on November 13, 2009, 08:13:59 AM
I have a 934 CV joint and there HUGE!

Can take like 1000 HP too, Price is like $800 ea for the good ones the race team buys
Where can I find some CV Joints or any for that matter? Where are you guys getting these from?
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Offline BDKW1

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Re: CV Design Questions
« Reply #26 on: November 16, 2009, 10:13:32 AM »
Quote from: Masterfabr on November 15, 2009, 07:30:48 PM
Have you seen the new sx series of cv's? Supposed to be 40% more effecient and stronger by 8%. Hmmmmmmmmmmm.................................

Yeah, I saw those a while back. Looked like OEM stuff only at that point. Might be a while before We get something that can be crossed over. They are claiming 50* out of them............ Time to find out what FWD car they come in.........
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Offline BDKW1

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Re: CV Design Questions
« Reply #27 on: November 16, 2009, 10:18:00 AM »
Quote from: Masterfabr on November 15, 2009, 07:27:45 PM
Who do I contact to get them?

Your local GKN dealer?   ;D  I get mine from B&R buggy in here in SoCal. He has an account with the main GKN distributor on the east coast.Which if I remember correctly is the only one, pretty sure everyone gets them from that place.
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Offline fabr

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Re: CV Design Questions
« Reply #28 on: November 18, 2009, 10:51:31 AM »
OK ,I give up. A person would logically think that their website would at least give you links to a fricken dealer or distributor.  But NBOOOOOOOOO ,that'd be too easy.  Got a telly number or link to your source?
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I agree with your fantasy"

LiveWire

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Re: CV Design Questions
« Reply #29 on: November 19, 2009, 01:53:56 PM »
If you made a wider cross groove joint, you could get more plunge. The suspension would have to be such that the axles are near the outside of the race while at full droop. That is a pretty common setup anyway. So you have angle when at full droop and plunge when at lower angles.

I would think a cross groove joints would run hotter than a fixed joint with them both running at say 20 degrees. The balls in a fixed joint move in a circle in a plane that is at half the angle of the axle. The cross groove balls move in an ellipse. So they travel farther each rotation which is why I would think they run hotter.
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