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Old Apr 28, 2007 | 04:29 PM
  #8  
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Si B
2Evos & 1 Escort Van :-)
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From: Somerset
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For 550 bhp + a T4 isn't going to do it.

Nor is a GT30 - even on some of the larger exhaust housings... AFAIK a GT30 is an ideal 450-530 ish range turbo.

Sounds like a GT35, or one of those fancy Turbos (Turbonetics?) Stavros posted about recently - sure he'll be on a here to supply a proper techy answer to this question!

Si
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