Quaife diff installation - how much should I pay?

[chris watton]

VARLEYHYD said:

chris watton said:

I did wonder why the acceleration seemed the same with the new diff - until I started cleaning up the old diff

let me know when you put it in the classifieds

ta

Will do

It's only done 30k miles, BTW.

Received your fantastic Sagaris bible yesterday, great stuff.

Didn't realise the diff weighs in at 36kg! No wonder I struggled carrying it across one field to another when I bought one at Burghley. Nearly killed me!

Over 10kg more than a complete K-Series VVC head!

[chris watton]

Update on the Quaife diff...

I have done a couple of hundred miles in the Tam now with this LSD, and all the people who said it was a waste of time and money/wouldn't be able to notice the difference on a lowly 3.6 etc. - How wrong you are!

Accelerating from stationary using high revs now doesn't meant wheel spin and the fishtailing, you just seem to shoot off, no drama, just 'sling-shot' forward!

Taking corners at speed make me laugh out loud, rather than hope for the best and pray the back stays in check. It is much more planted, almost like a different car. I even played a little in the wet, with no other cars around, doing my best to make the back end misbehave (within my own limits, which admittedly aren't very high..), but it stayed planted to the road.

From my experience (and we have a Quaife diff fitted in two of our rear wheel driven cars now), it is a great upgrade, both for safety and fun, more so for the TVR, which has no TC at all. Highly recommended.

[chris watton]

TVRMs said:

Chris accelerating from stationary using high revs never did mean wheel spin and fishtailing with the hydratrak. I'm pleased you're happy with the work done but try and be realistic in terms of the difference.

And before you ask - I have driven both back to back

I should have qualified my post by stating that I have never tried Hydratrack - I was comparing it to the standard diff.

[chris watton]

TVRMs said:

And I guess I shouldnt have assumed your car had a hydratrak

Still pleased your happy with it though

I did think about just having the refurbed M80 Hydratrack installed, as I know this was an expensive option for a new TVR, and standard on the Tuscan S cars, but previous experience with the Quaife, coupled with the fact that it will never need servicing won me over.

I plan to have my gearbox re-furbed next, and CR gears fitted. I would like to have the TVR Power clutch, lightweight flywheel and slave cylinder kit, along with the beefier starter motor fitted at the same time, so then the whole drivetrain would have been refurbished.

I need to have the gearbox removed, and I was thinking of taking it to Gearboxman, but I can't remove the box myself. Is there somewhere who could take off the gearbox, send it to be refurbed (while keeping my car at the workshop), and then putting it all back together when complete?

[chris watton]

shep1001 said:

Get Power to rebuild it - problem solved as they will pop it in and out and keep the car too

After paying my last bill from them, I would assume the labour costs would be horrendous. I know that the TVR specialist in Redditch charge around £40 per hour (Dom is £70), so it makes financial sense to buy the bits I need from Dom and have them fitted somewhere closer at half the cost.

ETA - Dom even advised me to get the Quaife fitted by a specialist, as it would be cheaper than his rates....

Edited by chris watton on Monday 18th August 16:49

[chris watton]

Miss VXTamora said:

Is the 3.73 dif desirable? now they have got the Tam over the pit they can see a bit more inc the other tag on the dif saying 3.73.
Aimy

I think the general consensus is the 3.73 is the best compromise for both back road blasts and long distance/motorway driving.

I think that most 'T' cars were fitted with the 3.73.