Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain Supercharger pulleys

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  #26  
Old 09-09-2010, 07:27 PM
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I also hope that you used a tourque wrench to tighten down the new pulley...this is not a place to take shortcuts!! You can cause lots of dammage, and days of grief by not doing it right.
 
  #27  
Old 09-10-2010, 02:54 AM
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I know this was not ideal, but i jacked the car up, inserted 2 really strong bolts into the tensioner holes, propped a looong extension between the bolts and the ground, and SLOWLY lowered the car, mm by mm! Kept a close eye on the tensioner to make sure it was compressing properly. once i was able to, i stuck a thin long screwdriver into the hole on the steel tab.
just make sure the angle of whatever you use between the bolts and the ground is correct(should be in line with the spring).
I know its not ideal, but hey, had to do it..
 
  #28  
Old 09-10-2010, 08:02 AM
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I was about to go into some long-winded BS explanation that Blimey summed up perfectly. I did exactly that, and it works like a charm.

I would agree with the 1st statement......borrow one. You are certain to bloody some knuckles during the job already anyhow.

15% was WELL Worth the effort.........love my car.
 
  #29  
Old 09-29-2020, 08:45 AM
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Originally Posted by thecigarman
Myles2go, here is the pdf for installation:
http://www.outmotoring.com/images/ho...ulley_gen1.pdf

I did the 15% pulley. After reading all of the info and thinking about the other future mods that I would do I didn't think it would be worth any risk to do a 17 or 19 on a 5 year old car with 50K. While the risks may be debatable, I think that there is general consensus that 15% is safest for general street use based on wear and tear of the supercharger and water pump.

I didn't think of a 17 as a compromise. I actually think of the 15 as a compromise between OEM and a pulley modification. I think of 19 as a extreme for real hi performance mods.

Now I have the CAI, Pulley and standard exhaust. I have a Unichip that I am going to install until some time in the future when I can get a custom tune. Depending on how things go I will consider a catback or other exhaust.
what kind of chip is a”unichip” and how easy is the install and what is the performance of it ?
 
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