Thread: Full boost only in high RPM range

i had the same thing happen to my car it had a lot of miles like 220 and it was only gettin like 8 psi with a 3.4 pulley and headers replaced the blower with a lower mileage used one and ported and polished it and i see 11 to 12 all day long in the hot and sometimes 13 when its winter the old blower had all the rotors pealing but im not sure thats what caused it it just didnt like to boost anymore

Originally Posted by 00grandprixgtp

i had the same thing happen to my car it had a lot of miles like 220 and it was only gettin like 8 psi with a 3.4 pulley and headers replaced the blower with a lower mileage used one and ported and polished it and i see 11 to 12 all day long in the hot and sometimes 13 when its winter the old blower had all the rotors pealing but im not sure thats what caused it it just didnt like to boost anymore

I agree, its amazing what a P&P can do for boost levels, i was seeing 4-5 bone stock, then 6-7(maybe 8 at shift) with my 3.4 setup, after just porting the bottom of my blower and polishing bottom and cleaning the hell out of it, im seeing 10-12 all day and thats at 85-90* weather

Originally Posted by fisher580

I agree, its amazing what a P&P can do for boost levels, i was seeing 4-5 bone stock, then 6-7(maybe 8 at shift) with my 3.4 setup, after just porting the bottom of my blower and polishing bottom and cleaning the hell out of it, im seeing 10-12 all day and thats at 85-90* weather

a ported blower should net lower boost levels, not higher.