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Author Topic: Torsen diff.  (Read 2060 times)
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Peckerwood
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« on: April 22, 2013, 02:33:30 PM »


 Is anyone using a Torsen diff.

 Has this been discussed before?

 I think Tommy Thompson was using one in the Mustang he waded.

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Stainless1
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« Reply #1 on: April 22, 2013, 02:46:14 PM »

PM Sparky, I think he is up to speed on them.... pun intended  grin

edit added.  Try the search function they have been discussed
« Last Edit: April 22, 2013, 02:49:27 PM by Stainless1 » Logged

Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
kiwi belly tank
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« Reply #2 on: April 22, 2013, 04:55:12 PM »

Strong units with spiral gears & no cross pin to break. The drive load to the axles is spread accross the gears to the carrier. Limited slip is via the resistance of the gears themselves.
Toyota, Mazda, Ford & 7.5 10 bolt GM.
If you can run one, do it.
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93SVT5.0TT
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« Reply #3 on: April 22, 2013, 05:48:21 PM »

Torsen diffs apply more torque to the wheel that is not slipping. I would think this concept would force the slipping wheel to equalize rotational speed with the non-slipping wheel at high speed on the salt. So it should be the way to go in theory, but I have never driven on the salt, so experience is what will tell the real story.

I will say that they work phenomenally on a Formula car, though!  cheers

Tristan
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Dr Goggles
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« Reply #4 on: April 22, 2013, 06:54:54 PM »

Sparky wrote the gospel according to Torsen, I am a disciple. Now with them, he has performed miracles, we turned a few minor tricks.... The big get with them is the r&p sets, you can get ratios down to 2.14 with the 10 bolts. As Tristan said the theory is very good.... if the resistance on one axle decreases torque is fed to the other. This would seem to be a far more intelligent way to manage than grabbing the other axle solid if a wheel slips...

We don't really have enough power to delve into the realm of constant wheel slip and we also have a pretty clean shape, but I'm here to say it's done us some good.

Having said that our third member/rear end has mixed heritage, torsen centre, Camaro style housing, Ford tubes and axles..........

On top of all that the 10 bolt has the highest pinion to crownwheel height= least mechanical losses. Win/win !
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« Reply #5 on: April 27, 2013, 07:32:22 PM »

Sparky has been preaching to me about Torsons since I met him 2 years ago. I don't doubt they are the sh--, but we been using a 10 bolt with a spool so far(simplicity) and we got a hat, so we will keep on truckin til we run out of speed increases and then we'll revisit the Torson deal. Sparky keeps us goin'( but it's his fault we're wastin' our time and money on this in the first place) cheesy
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BC Racing 1979 Z-28
AA/CBGC Record 251.802 Speed Week 2012
AA/CBGALT Record 255.382 Speed Week 2013
AA/CBGC Record 226.104 El Mirage Sept 2015
AA/CBFALT Record 227.954 El Mirage June 2016
AA/CBGALT Record 236.458 El Mirage Nov 2016
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SPARKY
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« Reply #6 on: April 27, 2013, 10:21:15 PM »

lol  grin
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