I have heard of 911 turbo guys that put down a lot of horsepower will have the spiders in their open diff. welded. Anyone hear ever try it? Seems like what would be considered a "poor-man's" posi. - For track only duty.

 

I think this would be a very scary idea....

 

Yeah, only good for drag-racing. Even the 80% ones can be difficult on the track as they cause initial understeer coming out of corners.

 

Yeah, they cease to be differentials at that point and are just spools.

What about the Torsen diffs.? I know they're different than lim. slip, but I'm still having trouble with the consept that they transfer torque before slippage occurs..

 

Hey Pete - do you remember your camber settings and your front bar size? Just curious about the solid diff and low understeer, Thanks.

 

You might want to do a search... I know this same exact topic has come up before in the racing forum.<a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic&f=10&t=000575" target="_blank"> In fact, here is the link.</a>

I too used to rent a 944 with the welded spider gears. From what I understand, that car also had some self destruction issues and was later changed to a proper race limited slip diff.

 

Thanks Sloth

That thread answers the question to my complete satisfaction. I love the fact that someone out there has already gone through the trouble of implimenting these schemes and I get to benefit from their experience, successful or not. We have a real gem here guys!

 

I have a welded open diff. I'm going to put it in my "crap" gearbox to see what it's like. Although, it blew my mind when I found out that the 355 challenge cars use a 25% lock rate.

 

ARe there any companies coming out with a high perfortmance differential?
混特?

 

[quote]Originally posted by Silverbullet951:
<strong>
混特?</strong><hr></blockquote>


What the hell?

 

[quote]Originally posted by Silverbullet951:
<strong>ARe there any companies coming out with a high perfortmance differential?
</strong><hr></blockquote>

I am pretty sure that GT and/or Quaife offer units for the 944/951/968 trannys. I know I have an aftermarket unit in mine, though I am not sure who made it.