Quaife Diff?

I had search and found a lot of opinions on the S1 but not many had actually used it. Just wonder how good are they for our car? I had fitted a 2 ways, 1.5 ways (plates diff) to my previous RX7, ae86 and even MRS and it made cornering much faster and quicker without the inner wheel spin…just want to see will it have the same effect on our car although i know the quaife is a helical diff.

To be honest, I can see why they say the diff upsets the handling. It does tend to introduces a bit of mid-corner understeer, the tradeoff is that it gets out of slower corners a lot better and power-oversteer breakaway is more progressive and less violent on the gather-up.

Basically unless you’re tracking the car regularly and on tighter tracks and with more than 200bhp then I’d not bother with one.

It was great when i had changed the LSD in others cars, as you said, low speed cornering is much quicker with better traction, i am not sure my 205hp VHPD can power slide out of the corner tho but definately one thing to consider in future.

Yeah, I think it makes the handling less delicate, but more throttle sensitive. You can slide the car a bit more and go quicker and I’ve no doubt that it improves pace if you’ve got the power, but it doesn’t add a lot to the driving experience other than making it slightly easier to do silly things sideways (see my youtube vids).

The Lotus already has such good traction, youreally don’t NEED it unless making silly power… or unless you can’t drive.

The only difference I noted when I fitted the Quaife LSD in mine, was the extra traction out of the corners. I can honestly say it didn’t under steer into, through or out of anywhere. Maybe that is a geo thing??

With apologies to IDG


[quote=AndyD]With apologies to IDG



[/quote]

AndyD you have quaife fitted too?

Yes - the black Honda car has a Quaife diff gear type LSD.

My opinion is this …

  • You need to get the suspension right first - two wheels on the ground is going to help traction more than one.
  • If you get the suspension setup correct the addition of the diff definate helps the traction and “controllability” out of a tight corner - something like radar at Angelsey
  • I did feel that the diff added some high speed corner understeer … but that suits me fine and I’m sure could be dialed out with geo

Suppose a few on here are expecting me to pipe up ,eh Benja+ Pesky??
The RX7 was dire without a diff , I had an Elford turbo and the handling was paltry.
With the Exige I found the lack of a diff very annoying tbh.
Even for road use ,nailing it out of a corner would hop and spin the inside rear…
That was with 200 brake …with 300 ish there’s no question It’s needed …
I have found minuscule understeer on slow tight corners but I wouldn’t swap it for the world .
The car was horrible without it …and I challenge anyone to speak different.

I also loved my 2 WAYS diff on my rx7 before hence my original question. Anyway, this will be on my on to do list in futre :slight_smile: