Thread: BTCC YB engine spec discussion
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Old Jan 29, 2012 | 10:44 PM
  #27  
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jsa
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From: 'straya
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Hollinger 6 speed from memory.

Typically 2 bar boost for racing and more for quali.

Not all GpA turbo's were created equal.

Have heard rumors about equality of RS500 blocks too.
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