Rear axle set up

[Paul Finn]

Hi does anybody have any experience or recommendations i’m building Escort MK2 with Cosworth Turbo YB around 330 bhp The car currently has an atlas rear axle I wanting to fit disc brakes and fit LSD is there anywhere I can take my existing axle to have LSD fitted and disc brake conversion fitted and any other upgrades and they need thanks

[wildo105e]

Rally and competition equipment or squires brothers (same lads)
Fitted my lsd great turnaround. They build loads of atlas axles.


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[Paul Finn]

Thanks for that I have emailed them and I will wait for a reply which LSD did you go for

[wildo105e]

They tend to be quite good on e-mail now, they were with me.

I got a second hand 3j-nxg that had been overhauled. I tried to stay away from quaife as there customer service seems to leave a lot to be desired (so i have heard) I have e-mailed 3j a few times and always got replies quickly etc.

[Paul Finn]

3j I recommend NXG Ultimate set up 50/90 - 30-35 at £860 plus vat they want to know the details they want to know the diff gearing Which I don’t know I will have to strip it down tire size which I do now 13 195 60 They want to know how much revs I want in each gear and what I want to use the vehicle for I said just fast road a lot of money

[Mkdu]

LSD and fast road, you always got advice like 30/90 or xx/90, which is an open diff on unload, this is not really funny. I've used one, easy but not so much fun as something like 30/60.
I used 2 different LSD from Titan, and one from 3J, no issues with those 2 companies.

[Paul Finn]

What is the difference between 30/60 and 30/90 I have experience with them cheers

[Mkdu]

xx/90 will act same as genuine open diff, when no throttle action, that's the same. you can't slide/drift anymore when no power applied.
xx/60 still lock when no throttle action, so you can keep the car on a little or more angle on long curves.

That's the main thing I noticed, before with the 90, impossible to keep the car over-steering on long curve when you are some moments off throttle, you can't keep or I can keep full power for a long one ! you go from lock to unlock and lock again if you on-off-on power.
with the xx/60, when I lift the gas pedal, you still can keep an over-steering position, so when you apply power again, the LSD is still locked.

On the other hand, on hairpin, the 30/90 was easier, don't know why. I mean more angle than the xx/60, it seems this one is more performance oriented ?

I'm not using the car in competition, just demonstration events, so no time involved and just fun. I have more fun now, but I think it depends of your driving style, and skills ?
I read some years ago, on a forum, a German guy that payed with LSD's on his BMW, the reading was really interresting

[Mkdu]

https://www.m3post.com/forums/showth...788992&page=10
there are 18 pages, a lot of posts from 'driftflo' are really interesting.