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I usually run between 5-5.5psi, but sometimes especially when the rpms are high, it reduces to 4psi or so,, I don't think its belt slip, but wondering if anyone elses does this, i know when its real cold outside it sticks at 5-6, but lately its been warmer so they may be the problem,
Maybe the belts need a little retightening.
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Mods
That problem is normal. Acutally its more of a expected result with the R rather then a problem. See the way the R's camshafts are designed the boost will fall during top end rpms's. When I tested the GSR intake cam on my car a few months ago my boost held to max all the way to redline, however my whp still fell short of my car with the stock R intake cam. Hopefully soon I will test out some more cam gear settings and see if I can get the boost to hold more. Still though its kinda nice that the boost falls at top end! Its kinda like an additional safeguard.
In a few weeks I will post some info on this project I'm working on. The comoputer and injectors, etc... are still on the way! http://www.hostboard.com/ubb/wink.gif
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Mike Marsey
'98 ITR #0717
Supercharged w/218whp @ 5.5psi
For all your JRSC type R questions, go to:
http://www.geocities.com/superchargedtyper/