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Old 2007-11-14, 02:15 PM   #14
sperry
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
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Quote:
Originally Posted by GST Mike View Post
The full race motor uses Cosworth heads and cams, the bottom end is ours running 10:1 compression.

We see full boost at 4200rpm, as of yet we have only ran it up to 24.5psi on 116 octane gas.

Mike
Damn... 10:1... I guess 116 becomes pretty necessary at that base compression.

Since I'm planning on 100 octane, and since I don't want to do cams, I'm probably best of sticking w/ the normal base compression and the smaller turbo... I bet that 35R would be too laggy on my motor, so even if I was making 400+ whp out of it, the smaller 30R would actually be faster around the track.

How much boost are you planning on running in a "high boost" scenario on the L? Would you be able to get to 2 bar? Also, are you running a high red line to make use of those heads?
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