VETTE TRANNY INSTALLED-SOME TESTING RESULTS AT POST 157
04-26-2011, 01:06 AM
#136
Rest in Peace
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If nothing else you were the driving force, the guy behind the curtain, that got the Sharkwoofer started, at least from what I hear.
You sent a 1600 dollar radar detector half way across the states just because a fellow 928 person needed it.
A trend setter for you fashion statements, and suttle use of "On the car decorations"
A real leader of men when you had shiney belt buckles, myself and others were following you around like a bunch of hungry dogs and you had a pork chop.
I only wear mine on special occasions, like when I am with my Corvette buddies, they are just stunned that any one in a car group would do anything more than tell you how you screwed it up and how they would have made it all right, just by being in proximity to the problem
People like you, and many, many others here are what makes this group special.
Do not even try to say you are not one of the great ones from this group.
You are to big for me to fight, so lets just agree you have done a lot.
04-27-2011, 05:36 PM
#138
Drifting
Think of it as the Vette end beats 6 per second and the Porsche beats 5 per second (not that they beat anything per second, but just as an example of how things must time equally to be compatable). CVs aren't as simple as these posts suggest.
If you had each end of the CV joint mechanism functioning exactly the same as the other end, then you could try to adapt the splines of the Vette to the Porsche, and, in theory, it should work. The length won't be correct, so a custom CV is required. As the axles are made of hardened steel, machining them to new specs is not likely.
If you had each end of the CV joint mechanism functioning exactly the same as the other end, then you could try to adapt the splines of the Vette to the Porsche, and, in theory, it should work. The length won't be correct, so a custom CV is required. As the axles are made of hardened steel, machining them to new specs is not likely.
Uhhhh.....number of ***** will have zero effect. The ***** (number of or diameter) only matter to the torque capacity equation. Most outer designs for FWD cars have 6 *****. Some new designs (not even sure if they went into production) had 8 or 10 *****. More ***** lets you bring down the joint diamter, but still maintain strength.
I don't know what a 928 has for CV's but I'm 99% sure it'll be a GKN-Lobro design. Cross grooved joint, etc. They look like hockey pucks from the outside.
The Vette has an assembly from NTN, standard outer joint with 6 ***** I'd assume, and for the inner vette joint it might be one of two designs. Either a standard 3 lobed tri-pod or a balled joint called a DOJ (double offset joint) where the inner joint kind of looks like the outer, except the inner cage actually plunges in and out. NTN's specialty is the DOJ. Housing is perfectly round on the outside, with formed in tracks for the ***** on the intside.
Regardless....... the number of ***** won't matter.
Now one thing that could be an issue...........with a Vette inner joint and a 928 outer............
The Vette inner will have plunge capability. So it can move in and out with the suspension movement.
I don't know what the 928 outer is, without seeing a picture. If the 928 outer plunges............there could be a problem. An NTN plunging joint and a Porsche plunge joint might act goofy in that when the suspension moves........what part of the axle plunges. It could slam the connecting shaft all the way to one side.....and bottom one side before the other moves. That would be bad.
04-27-2011, 05:43 PM
#139
Three Wheelin'
Just thinking out loud here Larry but do Vette axles have splined nubs at the outside?
If so, it could be possible they have the same spline as a 928.
I do know that some Fords use the same spline as a 928 and axles could be swapped by dealing with any difference in length by spacers.
If so, it could be possible they have the same spline as a 928.
I do know that some Fords use the same spline as a 928 and axles could be swapped by dealing with any difference in length by spacers.
04-27-2011, 05:50 PM
#140
The Vette inner will have plunge capability. So it can move in and out with the suspension movement.
I don't know what the 928 outer is, without seeing a picture. If the 928 outer plunges............there could be a problem. An NTN plunging joint and a Porsche plunge joint might act goofy in that when the suspension moves........what part of the axle plunges. It could slam the connecting shaft all the way to one side.....and bottom one side before the other moves. That would be bad.
I don't know what the 928 outer is, without seeing a picture. If the 928 outer plunges............there could be a problem. An NTN plunging joint and a Porsche plunge joint might act goofy in that when the suspension moves........what part of the axle plunges. It could slam the connecting shaft all the way to one side.....and bottom one side before the other moves. That would be bad.
04-27-2011, 08:19 PM
#141
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Thread Starter
FWIW-My CV guy, who does nothing but manufacture CVs (custom and production) stated that mixing a Vette end with a Porsche end will ultimately cause a failure. It's not that they won't work together initially, but that it's an explosion waiting to happen down the road. Right or wrong, it helped me with my decision to go with Vette axles into Vette uprights on the race car. Should we decide to further improve anything at the rear, part selection and availability becomes another advantage with Vette.
As to movement, answered accurately above.
As to movement, answered accurately above.
04-27-2011, 11:36 PM
#142
Several people wanted to know if there was any cutting involved in making the swap. The attached photo shows the full length of the c5 TT in an 86.5 928. There will be a mod to move the shifter from 10 o'clock to 12 o'clock and it will come out of the tunnel in exactly the same place as the 928 shifter. We're not showing the cradle or axles at this time, mainly because they are not done.
Also wanted to show that this is a real deal project, due to some references to Motodyne and/or April Fools Day. We are VERY serious about doing it right or not at all.
Also wanted to show that this is a real deal project, due to some references to Motodyne and/or April Fools Day. We are VERY serious about doing it right or not at all.
Greg
04-28-2011, 01:00 AM
#143
TT is alloy.
04-28-2011, 10:56 AM
#144
Drifting
FWIW-My CV guy, who does nothing but manufacture CVs (custom and production) stated that mixing a Vette end with a Porsche end will ultimately cause a failure. It's not that they won't work together initially, but that it's an explosion waiting to happen down the road. Right or wrong, it helped me with my decision to go with Vette axles into Vette uprights on the race car. Should we decide to further improve anything at the rear, part selection and availability becomes another advantage with Vette.
As to movement, answered accurately above.
As to movement, answered accurately above.
I spoke with several powertrain guys. They all don't see any issues with mixing CVs. That's what these guys do for a living. I also heard back from another one and he said he wouldn't be worried about running a plunge joint on both ends.
Anyway...good luck. I think it's a kickass project. My interest in this is that I've also wanted to do the same thing to my car.
04-28-2011, 11:01 AM
#145
Bull****, I know better a lot better.
If nothing else you were the driving force, the guy behind the curtain, that got the Sharkwoofer started, at least from what I hear.
You sent a 1600 dollar radar detector half way across the states just because a fellow 928 person needed it.
A trend setter for you fashion statements, and suttle use of "On the car decorations"
A real leader of men when you had shiney belt buckles, myself and others were following you around like a bunch of hungry dogs and you had a pork chop.
I only wear mine on special occasions, like when I am with my Corvette buddies, they are just stunned that any one in a car group would do anything more than tell you how you screwed it up and how they would have made it all right, just by being in proximity to the problem
People like you, and many, many others here are what makes this group special.
Do not even try to say you are not one of the great ones from this group.
You are to big for me to fight, so lets just agree you have done a lot.
If nothing else you were the driving force, the guy behind the curtain, that got the Sharkwoofer started, at least from what I hear.
You sent a 1600 dollar radar detector half way across the states just because a fellow 928 person needed it.
A trend setter for you fashion statements, and suttle use of "On the car decorations"
A real leader of men when you had shiney belt buckles, myself and others were following you around like a bunch of hungry dogs and you had a pork chop.
I only wear mine on special occasions, like when I am with my Corvette buddies, they are just stunned that any one in a car group would do anything more than tell you how you screwed it up and how they would have made it all right, just by being in proximity to the problem
People like you, and many, many others here are what makes this group special.
Do not even try to say you are not one of the great ones from this group.
You are to big for me to fight, so lets just agree you have done a lot.
Besides, who else could come up with this kind of stuff.
04-28-2011, 02:14 PM
#147
Rennlist Member
Thread Starter
I'm here to learn. Hopefully, the mixing of CVs is OK and that will lead to a production run of axles when the time comes; lowering the price which will allow them to be kept on the shelf and be readily available.
04-28-2011, 02:20 PM
#148
Three Wheelin'
FWIW-My CV guy, who does nothing but manufacture CVs (custom and production) stated that mixing a Vette end with a Porsche end will ultimately cause a failure. It's not that they won't work together initially, but that it's an explosion waiting to happen down the road. Right or wrong, it helped me with my decision to go with Vette axles into Vette uprights on the race car. Should we decide to further improve anything at the rear, part selection and availability becomes another advantage with Vette.
As to movement, answered accurately above.
As to movement, answered accurately above.
04-28-2011, 05:19 PM
#149
Not the sharpest tool in the shed
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You guys are killin me. Greg, you are too kind. Sean, one of things I love about you is your honesty and sense of fun. Now both of you get back OT.
You do gotta admit not every dood can suck on his own duck. I must also say, Roger is the first guy I've ever let suck on my duck. If it had to be somebody I'm glad it was him. We 928 owners are a strange but fun crowd.
Larry, I need to come look at your setup. Are you still here in the Valley or are you up in the hills now?
Someday when the 928 engines are as scarce as hen's teeth there will be a market and need for a GM drive train. Some might argue that is true now. The real hitch in the gitalong has been the drive gear. Larry's seminal work on this will be remembered and appreciated by some, me included.
You do gotta admit not every dood can suck on his own duck. I must also say, Roger is the first guy I've ever let suck on my duck. If it had to be somebody I'm glad it was him. We 928 owners are a strange but fun crowd.
Larry, I need to come look at your setup. Are you still here in the Valley or are you up in the hills now?
Someday when the 928 engines are as scarce as hen's teeth there will be a market and need for a GM drive train. Some might argue that is true now. The real hitch in the gitalong has been the drive gear. Larry's seminal work on this will be remembered and appreciated by some, me included.
04-28-2011, 06:05 PM
#150
Rennlist Member
Thread Starter
Hi Dan- I'm here in Phoenix, but will be leaving again on May 6 for Tahoe. Race car is already there, getting some needed clutch mods. C5 is in and just waiting for some hub work and new wheel studs.
The 82 LS6 is still here with the Mrs.
Jon B. - Don't know exactly what you mean by out back. Explain please.
The 82 LS6 is still here with the Mrs.
Jon B. - Don't know exactly what you mean by out back. Explain please.