Quaife Not for drag racing?

[Sp1kE]

I noticed on some sites the Quaife center diff has a discription of this:

"Quaife LSD for Mitsubishi Eclipse/Talon 4x4 93-99(centre) [Not for use in Drag Race applications] Reliability is total; the ATB Helical LSD units are designed using the latest CAD techniques and are CNC machined to ultra-tight tolerances from the very best CORUS steel billets. The completed units are then subject to rigorous in-house inspection on a tri-coordinate measuring machine before being dispatched to the customer."

but then on Quaife's site it says:

"The Mitsubishi Eclipse Talon 4WD centre Quaife ATB Helical LSD differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards."


Is there any reason why I should listen to the other site and not use it for drag racing?

 

[Soccerguy136]

The other sites could be referring to the fact that the Quaife has no warranty and seems to be weak for the hard-launching of drag racing. There are a lot of stories of them breaking in drag-racing scenarios...

From Jack:
http://www.dsmtuners.com/forums/newbie-forum/264910-4-spider-vs-welded-center-diff.html#post151228449

From others: jtmcinder & scotthidley
Quaife center Diff. - DSM Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum: DSMtalk.com

The general consensus is that it is a great auto-x and road-racing diff, but for drag-racing and frequent hard launches, look elsewhere.

All of this info is for the center diff that you requested, just fyi.

 

[Canadian_CD9A]

Lots of these have been broken on launch from drag racing, enough that it's a roll of the dice of destroying your whole transmission every time you launch the car. I wouldn't use it for autocross either, because autocross has lots of launching, although not necessarily as aggressive.

I'd love to use one of these, but there are too many instances of them breaking for it to be a fluke. It's a design flaw, though I might buy one to shot-peen and cryo-treat, to see if it works out. Again, big gamble.

To be safe with one of these, it has to be road-racing only with no launching at all, and even then, your transmission should be torn down to inspect for cracks every year.

 

[Sp1kE]

Hum I broke down and got one for almost half price.
I've been doing some reading and sounds like it is the 3rd gears that are breaking and people were blaming the quaife...?

I may try strengthening it like you said. I will run it for this year I guess and do a tear down, again like you said to see what it looks like.

Thanks guys.

 

[CSFX8588]

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