Hi everyone,
Just wondering what boost pressures are being achieved with what pulleys
when using M90.
I know there is a lot of info already on this site but don't know whats correct.
I have ordered 65 mm pulley from BULLET who tell me it will only run 6-7 psi.
Other info sugests the boost pressure will be higher, just hoping to get real
figures from conversions that have already been done not calculated boost.