X-pin diff, is it essential?
Turbo Mini Forums

Hi, I will be running a metro turbo engine, with an IC at about 10psi, is it essential to have a 4 pin diff? as I am on quite a tight budget?

Most people say yes, but I think with a bit of mechanical sympathy then you might be OK without one.

My gearbox, drops and diff are all standard, but are very low mileage. I run 12psi and have done about 2000 miles on the engine+gearbox, including some drag runs at Avon. Still seems to work.

Ill be rebuilding the gearbox

If your rebuilding anyway, I would put one in for piece of mind.

Saying that I ran my engine at anything from 10 to 16psi for 3 years covered 10k and it was ok, but I was a chancing it TBH. Lol

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1/4mile in 13.2sec @ 111 terminal on 15psi

Another thing to bear in mind, if the diff does start to disintergrate what else will it take with it?

yeah thats a good point
i may just have 2 buy one

beg steal or borrow the cash you realy should fit one as jay2 states

My MG Metro (standard NA, not turbo) broke it's diff pin at ~70k miles. All normal driving.
The broken end of the pin went under the crownwheel, where the gap wasn't big enough for it, so it punched a hole in the casing.
RIP my only DAM5626 casing.
Initially, when I went to rebuild the gearbox in an older casing (ready for my Mini project), I bought a new replacement "competition" single pin, but once I decided I was going the turbo route, I put it to one side and bought the MiniSpares X-pin diff.
I just look at it as insurance...

Schrödinger's cat - so which one am I ???

i just had one die on my n/a running 77 bhp with normal driving so will definitely be using a minispares x-pin/ quiafe if i can afford in the turbo

Depends how soon you want to see the inside of your gearbox!

Having had a sumpful of Mobil 1 leak slowly away on the quayside at Dover docks the wrong side of customs I would advise fitting one!

On 5th Sep, 2011 Vegard said:
I stand corrected. You should know

in my N/A mini i snapped a bmc diff pin now im running a comp pin with two flats on each end n its doing just fine after 2000km of really hard driving

*Age does not dinimish the extreme disappointment of having a scoop of ice cream fall from its cone*

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=148025

may help you to decide ,that was on 9psi. :)

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM