is the Quaife ATB the only LSD available for Ital axle?

[paul_w]

Hi - considering my options for my Ital diff repair, and wanted to ask if anyone knows of any plate type diffs for the Ital axle - I haven't found any online, and in two minds about the ATB as it's not supposed to be much cop for sliding about

Alternatively, if you've got an ATB and can verify it has no problem sliding, please let me know :-)

Cheers

Paul

[paul_w]

Actually, a bit more searching and a bit more confidence that the ATB will be fine judging from a Caterham owner on this thread:

http://www.locostbuilders.co.uk/viewthread.php?tid=173966 

[Gordon C]

 

Just read your link to the Locost Builders forum and have to agree with whats been said.

I've had my ATB installed for some five or six year i guess. Track days, slalom runs and donut city all fun with the ATB. Paul, you go for it you'll not regret it 

[paul_w]

great, cheers Gordon for the vote of confidence :-)

[OliverSedlacek]

I heard Titan make an LSD for the Ital axle, and I'm in the market myself. I'm also looking for a 3:6:1 ratio CWP set so if you guys know where I can get one please let me know.

[elie boone]

I think http://www.jigsawracingservices.co.uk/index.htm can help with all things Ital diff or contact Road & Race in Sevenoaks

[paul_w]

thanks elie - it's R&R who are repairing the diff and suggested the Quaife wasn't that good for drifting and donuts, but I think is all they can supply for the Ital - will give Jigsaw a call tomorrow if I get a chance, but not sure I can run to the £816+ they list for an LSD on their site - Oliver, I'll post up if I find any other options.

I've driven a DD car with the early Sierra diff and it did noticeably (under, mostly) steer the car, and would like to avoid the sudden and unexpected sideways in the wet moments that car was keen to dish out, so it's likely the ATB is the best compromise.

[OliverSedlacek]

I've been doing some research and thought I'd share what I've found. A Quaife LSD is much stronger than the standard diff, where the gear carriers are a weak link. The exact Quafe part is the QDF8K, which is also listed on the Quaife website as the QDF8K-2 and QDF8K-3. Quaife assured me they are all exactly the same part!

Their list price is £575+VAT, but they acknowledge that Demon Tweeks often undercut list price as they buy in volume.

[elie boone]

Oliver, PM send.

A wel sorted Ital axle can cope with 155bhp from a X-Flow on Toyo's 888, all this on track days and no problems.

Forgot to add, with an open diff.

[paul_w]

Thanks Oliver - R&R will supply the diff from Quaife, they are the same price as Quaife so easier for me. Demon Tweeks don't list the Ital version, just the DD. Phil at R&R told me fitting the Quaife would remove one of the weak links of the axle, though this may only be if you spin up one wheel a lot.

Elie, 100bhp and ancient 185 Michelins trashed mine on one airfield day with a 5000 mile car, so let's hope it lasts a bit better once R&R have fixed it :-D

S&C will pull it apart next week and get the diff over to R&R - will report back what they find...

 

[OliverSedlacek]

I'm on 150 BHP now, and hoping for something nearer 170 BHP!

[OliverSedlacek]

Thanks for the manual Elie. You sure need a lot of specialist tools!

[elie boone]

Paul, some diffs had been build with collapsable spacers, it was never desigend like that and it could be a reason your diff gave up. The diff i am refering to has been all his life (1996 ) in a Academy/Graduate and for the last 5 years on Toyo 888 tyres for about 6 track days a year and since 3 years the engine has about 155 bhp. 2 months ago the CWP was replaced as it was worn witch is not bad for 20 years.

[Iamscotticus]

Hey,

@OliverSedlacek did you ever get a LSD in?

@elie boone you have me thinking my 96 scholarship SP worked Ital is bullet proof against the 100 hp Xflow.  But I still think a LSD would be an improvement.

Any advice?  Thanks for the links.