mini cooper supercharge pulley

[General Baxter]

tells me a need a 'tool' to remove it,

but it dont show me how the 'tool' works,

google is crap

any ideas ?

[Stuart]

grinder

[General Baxter]

thats what im thinking lol

[stupot89]

realy big hammer

[deanwilko]

big hammer and puller

[deanwilko]

pm'd

[Johnny A]

hydraulic press, it took 3.5 tonnes of pressure to free mine :eek:

[General Baxter]

aha it pushes out then ?

[Johnny A]

its a tapered interference fit with a bolt on the end, will mine is.

Get me a pic

[adam c]

this:confused: :

http://www.mini-madness.com/index.asp?PageAction=VIEWPROD&ProdID=216

[Johnny A]

this:confused: :

http://www.mini-madness.com/index.asp?PageAction=VIEWPROD&ProdID=216

Yep thats the cool you can buy, this means it is the same as mine. Buy the tool or just get an engineering shop to press the pulley out.

Why do you want to take it off?

[General Baxter]

yep thats the beast, im not paying $110 just to use it once and bin it lol

[Mike]

Why do you want to take it off?

Fit a smaller pulley = spin up a heck of a lot quicker

[Johnny A]

It ain't a turbo you know lol The standard pulley should provide ample boost pressure on the 1.6, unless you doing low comp pistons I wouldn't bother just yet.

[Adam]

Fit a smaller pulley = spin up a heck of a lot quicker
But at the expense of less boooooooooost

[L14MNP]

Keep it standard for now. My mates FRP is and he doesn't complain.

[Johnny A]

The smaller the pulley the more boost basically but it also shifts the band in which it is making full boost.

So for example a standard pulley will make 8psi at 2,000 rpm but less below that, a smaller pulley will give you 12 psi at 2,000rpm and 8psi now at 1500rpm

[Adam]

Does a smaller pully not mean less charger rpm=less boost???

[Johnny A]

other way round, smaller pulley means it's spinning faster. If you made the engine's crank pulley smaller you would loose boost.

[Adam]

Ahh right, i get you.

[Jay]

You can safely run a 17% smaller pulley on the Eaton 45.

[Johnny A]

You can safely run a 17% smaller pulley on the Eaton 45.

on a cooper S yes, but its more than likely Baxter's bottom pulley is a different size which will throw the ratios out.

Basically the Eaton's max out at 14,000rpm, so if you had a bottom pulley that was 100mm's in diameter and you fitted a 50mm pulley you would be at 14,000rpm at 7,000rpm engine revs.

[General Baxter]

the cooper pulleys lower and charger, are the same size as the alut pulleys :P