[MiniBimmer]

Hello

I Need Help please...

Besides pulley diameter, S/C Works have any more difference in relation to the Stock unit (170Hp)?

Best Regards and thanks

[r1_kde]

Nope, they have black rotors and also the smaller pulley. thats all

[Rakey]

The super chargers are the same, the head unit is changed which then has a smaller pulley on it, but the charger remains the one the car came with.

[Damo]

Quote: Originally Posted by MiniBimmer (original)

Hello

I Need Help please...

Besides pulley diameter, S/C Works have any more difference in relation to the Stock unit (170Hp)?

Best Regards and thanks

I always thought there were 3 different superchargees but never found what i read that made me think so.

There are 2 different types of charger, the ones with grey coating and ones with black coating: I think these are eaton 4 and eaton 5 (could be wrng by MINIAC will correct me if I am

Original Shape R53:
163bhp S, had a supercharger with grey coating and standard pulley (Eaton 4 i think)
200bhp JCW S had a supercharger with black coating and smaller 11% reduction pulley (Eaton 5 I think)

Faceifted R53:
170bhp S, had a supercharger with black coating and standard pulley (Eaton 5 i think)
210bhp JCW S had a supercharger with black coating and smaller 11% reduction pulley (Eaton 5 I think)

[r1_kde]

there are only three types

old grey coating
new black Teflon coating
JCW with smaller pulley

The difference in the JCW power out put is the air box, injectors and map not the blower.

[Damo]

Quote: Originally Posted by r1_kde (original)

there are only three types

old grey coating
new black Teflon coating
JCW with smaller pulley

The difference in the JCW power out put is the air box, injectors and map not the blower.

Yeah both of the JCW ones I mentioned are the same, didnt mean to insintuate the extra power came from the charger. If anything was trying to show the opposite, hence everything I mention for the 200 kit is identical to the 210 kit)

There are effectively 2 types of supercharger, and 2 types of pulley. 1st grey coated supercharger ony came with one pulley size though, the stock one.

[r1_kde]

I see what you ment now just thought it would be good to point out why they was different for everone else...

[Damo]

Quote: Originally Posted by r1_kde (original)

I see what you ment now just thought it would be good to point out why they was different for everone else...

Yeah no worries

Like the Avatar 210bhp Apparently LOL I know someone who's had that feeling

[MINIAC]

MCS models built prior to July 2004 had a 4th Gen Eaton supercharger. The 5th Gen Eaton supercharger was used in MCS models built July 2004 onward and in all JCW Engine Tuning Kits. The supercharger in the JCW Kit had a reduction pulley.

[MiniBimmer]

Hello
Thanks for the reply´s.

I read here in forum , there are many views on this subject ...

What is the better pulley setup/size for JCW? 15% or 17% or 19%?

Best Regards and thanks onde more time

[r1_kde]

You do not really want to start an argument do you??

I would advise either 15 or 17 with the stock intercooler and 19 has to have a larger cooler. "idealy"

User preferance really, a lot will say 15 and the rest will say 17 OR if you have the JCW then most people upgrade the crank a percentage.

Personally when mine was an S I had the 17% and thats was quite nice, but if you have it at the crank then you can rev quicker. Also personally I think 19% is a little small...

[Damo]

For power, 15%, for torque, 17%. 15% is probably the best for the supercharger. I run a 17% as wanted more torque.

As for the 19% needing an intercooler, more than likely, but it would spin the charger to fast to be efficient IMO.