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Old 10-20-2012, 11:23 PM
  #136
hot-J
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Installed one 2k ago. Running fine, and I've been beating the crap out of it.
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Old 10-21-2012, 12:09 AM
  #137
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^ what are you beating it with? a midget
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Old 10-21-2012, 01:37 AM
  #138
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Hey, Midgets need love too.......
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Old 11-14-2012, 04:44 PM
  #139
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For those worried about angles ...
01-98-5084-B EMPI OFF-ROAD T-2 CV JOINT ONLY, 100mm, EACH $ 46.95
^ Max angle of 25 degrees

01-87-9469-B EMPI 930 CV JOINT ONLY, 108mm, EACH $ 51.95
01-87-9469-K EMPI 930 CV JOINT & BOOT KIT, 108mm, EACH $ 75.95
^ Max angle of 21 degrees - made for 930, if something can be done to adapt to the 108mm O.D. since 944s use 100mm O.D., if I'm not wrong

Plus many more options here... http://www.dansperformanceparts.com/...susp%20IRS.htm

Just found the above link on thesamba.org or something similar. Just copying someone else's research here for reference.
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Old 11-15-2012, 01:16 AM
  #140
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mine have been fine with about 6 or 7 hard trackdays at Mosport.
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Old 12-15-2012, 09:06 PM
  #141
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just ordered a pair. I killed my passenger side axle the last track outing. Heard a bang then something that sounded like a woodpecker. Found almost every bolt on the transaxle side of both axles was loose or out completely. Axle itself appears intact so probably the inner cage of the CV is toast. This is a great find BTW
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Old 12-16-2012, 06:45 AM
  #142
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What type of bolts do the axles come with?
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Old 12-16-2012, 02:56 PM
  #143
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When you say, fits later models, doe sthis mean it will bolt right up to a '86 851?
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Old 12-16-2012, 03:19 PM
  #144
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Originally Posted by hosrom_951 View Post
When you say, fits later models, doe sthis mean it will bolt right up to a '86 851?
Yes
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Old 12-16-2012, 05:35 PM
  #145
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As an update I pulled both my axles last nite and inspected them to look for broken cages or wear. No obvious signs of problems and they articulated smoothly. The passenger transaxle side CV was almost bone dry though. I re-greased it and swapped the axles L to R to reverse the stress on the units. Went to the track today and my noise was gone for now
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Old 12-16-2012, 07:17 PM
  #146
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Originally Posted by eclou View Post
swapped the axles L to R to reverse the stress on the units.
Hi, what's your thinking behind this?

(Back when I was crewing, our driveshafts were marked L and R so we couldn't fit them in the wrong side.)

My understanding is that driveshafts don't like stress reversals, it's usually considered best to keep them loaded the same way. Otherwise they fatigue more rapidly.

IIRC, Carroll Smith mentions this in "Engineer to Win".

Of course if CV's are more likely to fail than the shafts, that's another story!

Cheers,
Mike
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Old 12-16-2012, 07:21 PM
  #147
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Originally Posted by mikey_audiogeek View Post
Hi, what's your thinking behind this?

(Back when I was crewing, our driveshafts were marked L and R so we couldn't fit them in the wrong side.)

My understanding is that driveshafts don't like stress reversals, it's usually considered best to keep them loaded the same way. Otherwise they fatigue more rapidly.

IIRC, Carroll Smith mentions this in "Engineer to Win".

Of course if CV's are more likely to fail than the shafts, that's another story!

Cheers,
Mike
I made the assumption that the noise I heard was due to binding in the CV, and that the wear would be early and not catastrophic - no visible signs. By reversing the torque I was hoping that the worn axle may have enough life left for 1 track session (today) without failing. I have already ordered new EMPI units. It worked for now
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Old 12-16-2012, 09:15 PM
  #148
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4340 alloy axles are less prone to the torque twist memory and can be flipped.
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Old 12-28-2012, 07:49 PM
  #149
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well I got mine and tried to install them today (EMPI). Mine is an early offset 86 and they don't fit. They are maybe 1/4" too wide in the axle to clear the mounting cups. I can attach the outer CV joints to the wheelside but the length of the actual axle will not clear the cup on the transaxle. It is a smidge too wide.
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Old 12-29-2012, 02:40 AM
  #150
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Originally Posted by eclou View Post
well I got mine and tried to install them today (EMPI). Mine is an early offset 86 and they don't fit. They are maybe 1/4" too wide in the axle to clear the mounting cups. I can attach the outer CV joints to the wheelside but the length of the actual axle will not clear the cup on the transaxle. It is a smidge too wide.
Robstah has them on his 86 951 early offset, maybe he has suggestions to help. I plan to get these myself this spring.
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