2002-2006 Mini Cooper S (R53)
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Mods and experience

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Old Mar 3, 2008 | 09:21 PM
  #11  
Adam's Avatar
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Default RE: Mods and experience

Stock is around 11psi, 15% is around 14psi. I've seen car on stock internals into the 25-30 psi range running turbos. 8.5:1 compression isn't high at all and the motor is built like a tank.
 
Old Mar 5, 2008 | 02:20 AM
  #12  
noraa's Avatar
Joined: Mar 2008
Posts: 8
Default RE: Mods and experience

hm, im looking ath the mini cooper USA site. It says compression is 10.5:1?
 
Old Mar 5, 2008 | 08:24 PM
  #13  
Adam's Avatar
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Default RE: Mods and experience

That's the Cooper. It doesn't have any boost and the engine and transmission won't take it. The Cooper S is 8.5:1... I don't know about the R56 though which is probably what you're looking at.
 
Old Mar 17, 2008 | 12:48 PM
  #14  
Lt_HailBob's Avatar
Joined: Feb 2008
Posts: 13
Default RE: Mods and experience

You probably did 140mph. The speedometers on the Cooper seem to have an ego problem.
 
Old Mar 17, 2008 | 02:04 PM
  #15  
Adam's Avatar
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Default RE: Mods and experience

pulley's overdrive the supercharger...
 
Old Mar 17, 2008 | 03:51 PM
  #16  
bad venge's Avatar
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Joined: Feb 2008
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Default RE: Mods and experience

Undersize pulleys drive the S/c faster
 
Old Mar 17, 2008 | 04:57 PM
  #17  
Adam's Avatar
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Default RE: Mods and experience

Yes, also know as overdriving.
 
Old Apr 28, 2008 | 11:42 PM
  #18  
t1 3vom's Avatar
Joined: Apr 2008
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Default RE: Mods and experience

i would recommend an ALTA supercharger pulley
 
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