Question on boost controllers.

ASSISTANCE Forced Induction
1

I have been studying flow maps and i think i figured out the best one for my car running 9lbs on stock internals. a T3 “60” trim compressor. I spool up pretty good and i don’t go past the best efficency portion of the turbo

now I did my plotting based on 4000 - 6500rpm would have full boost while from idle to 4000 would be rising boost pressure.

In order to have full boost pressure from 4000-6500 do i need a boost controller of some sort or will the wastegate be able to provide this type of tuning?

2

The waste gate will open depending on the size spring in it. Say it has a 7 psi spring it will open at 7 regardless of what rpm your at. A boost controller limits the amount of boost to the waste gate, tricking it to thinking your running less boost. That way you can choose your own boost level.