Quaife LSD

[Reedy]

Are you aware of any locking diffs that fit the MPS? The Quaife is good but can still free wheel which isn't ideal for racing. I haven't heard of any other options out there for our cars. Are they the only one available for our cars?

[Mitsiman]

Let me say from personal experience - that the quaife will make your car go just as fast as a locking differential. The thing you need to understand, is that the quaife is not a LSD, limited Slip differential. It is an ATB - Auto Torque Bias system.

What this means is if the quaife picks up wheel spin on one wheel, it transfers the power / torque to the wheel that is not spinning. This means you keep driiving .

With an LSd, it essentially locks both wheels, this means for example, going around the corner, that you have one wheel spinning, consuming power / torque and doing nothing other than screeching on the road whilst the other wheel is still driving the vheicle.

My FWD Twin turbo Magna - 530hp at the front wheels, had a cusco unit. I had massive over steer with a cusco and clunked, grinded and generally drove me insane. I managed a 11.99 down the quarter mile with it.

I moved to the quaife, did the same times at the race track, but no more over steer as well as I found I didn't fight the car as much and the inside tyres did not wear as much. On the drag strip I hit a new personal best of 11.50 @ 125mph (with some more tuning) with no wheel slip issues.

The point being that beleive me, having had both, I can garauntee short of a rally car where your off the ground, the quaife is hte number 1 choice of differentials by any circuit racer. You honestly won't be disapointed and your times and handling will improve.

** I also found on my FWD car the Quaife helped to REDUCE torque steer.

[Reedy]

God damn that's the most compelling argument i've heard yet for getting one. Lighting up my inside tyre coming out of tight corners has been a bane of my existence for some time at the track. Maybe get it done about April. I need to quantify my new brakes and tyres at the track before taking the next modding step and adding it to the pool of general knowlege.

[Caffeine Fiend]

Do it Reedy!

Really keen on seeing a Gen II owner take the plunge on one of these

[MattMPS3]

You might also consider doing a clutch / flywheel replacement or upgrade when you do the diff swap, saves the expensive labour of pulling the car to bits again in the future, just for a clutch replacement.

[Reedy]

Hmmm yea, it might make more sense to get it done when I need to replace my clutch then......

I might take up drag racing to being about that need earlier.

[GMAC9]

Hey Peeps..

its $1200 delivered either of eBay, quaife directly etc.
Im definitely thinking of getting one, I mean whats the point of power upgrades I dont want to pay top dollar so i can wheel spin and torque steer more than i do now.. so it makes sense.. i was just about to buy it wheeeeeeeeen i stumbled on this from the states.. its had some great reviews from mazdaspeed 3 owners.. and its much less.

MFactory Competition Products - Forged Transmission Components - $750 delivered

I have been quoted, 1000 dollars install from two different places one at rockdale and one at preston. (both diff specialists)

Additionally I was told that as part of the $1000 labour it would include changing clutch and flywheel if i needed it done.


Let me know if anyone has heard negative reviews about either Quaife or MFactory.. but yeah i couldn't find anything..