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This post is for friend of mine. He cant seem to boost past 10lbs.

He has a 1J with 550s and a 61 on an upgraded fuel pump. Also has a 14.5lb wastegate spring. Intake and exhaust. Running a fcon, fuel cut and speed defencer on an otherwise stock ECU. He said the car idles good. Also he pulled the Fcon and it made no difference. 10lbs is the most he can get. I cant quite figure it out.

Cause I remember when I had intake and exhaust on my 1J then only added an intercooler, I was hitting boost cut (15-16lbs) all over the place.

Any ideas? Any help or anything to check that he missed would be muched appreciated.
 
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