Saab B234/B235 hybrid - Big blowby. Low compression

[@Jonjs99]

I have good compression abouit 150psi but high blowby, but how?

[@TurboNerd1302]

This could be cause of a faulty pcv system.

[@ImNrgy]

Haha, I mean, who would ever put a NA bottom end in? Jesus, gonna be good with the b234r instead! ;) The 2,3i cams helps the t7 head breathe really well above 4500 rpm :)

[@TurboNerd1302]

Yep, my thought exactly. So new B234R bottom end is now in! Pushing 360Bhp at 1.7 bar of boost.