55's supercharger..

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Apr 6, 2007 | 05:48 PM
  #1  
can somebody tell me the psi on the 55's sc ? thnx
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Apr 6, 2007 | 11:43 PM
  #2  
Maximum boost pressure is 0.9 bar at which point the engine is making 469 hp at 6,100 rpm with 516 lb-ft of torque between 2,650 and 4,500 rpm. The internal parts of the supercharger rotate at 23,000 rpm at the engine crankshaft speed of 6,500 rpm. Quoted from Sports Car International, May 2003.
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Apr 7, 2007 | 01:28 AM
  #3  
Quote: can somebody tell me the psi on the 55's sc ? thnx
I believe its about 14.5 psi or so.
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Apr 7, 2007 | 01:30 AM
  #4  
at what rpm does the SC actually kick in? feels around 3k
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Apr 7, 2007 | 02:06 AM
  #5  
Quote: Maximum boost pressure is 0.9 bar at which point the engine is making 469 hp at 6,100 rpm with 516 lb-ft of torque between 2,650 and 4,500 rpm. The internal parts of the supercharger rotate at 23,000 rpm at the engine crankshaft speed of 6,500 rpm. Quoted from Sports Car International, May 2003.
0.9 bar = 13 psi
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Apr 7, 2007 | 08:08 AM
  #6  
1 bar=14PSI
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Apr 7, 2007 | 04:56 PM
  #7  
very nice thanks 2 all
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Apr 7, 2007 | 05:01 PM
  #8  
Quote: at what rpm does the SC actually kick in? feels around 3k
Supercharger clutch engages around 1300rpm.
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Apr 7, 2007 | 05:43 PM
  #9  
Quote: Supercharger clutch engages around 1300rpm.
Are you sure? that seems really early
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Apr 11, 2007 | 09:43 AM
  #10  
Someone please correct me if Im wrong but stock boost is 11 psi with increase to 13 psi with K2 setup-anyone? Joker
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Apr 11, 2007 | 09:51 AM
  #11  
Quote: Someone please correct me if Im wrong but stock boost is 11 psi with increase to 13 psi with K2 setup-anyone? Joker
That's my understanding.
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Apr 11, 2007 | 11:26 AM
  #12  
Stock boost is 11.6 psi.

Pulleys add 2-3 psi depending on the tuner.

Kompressor clutch is engaged by DME if load exceeds 30% or rpm is above 2900.
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