Can anyone tell me what standard boost pressure should be I believed my engine was stock and never been messed with but I fitted a boost gauge today (tapped into inlet) and its reading 15 Psi is this right?
Def std roughly 10/11 psi 107bhp
Disco std 15psi and a mighty 111bhp!
They will take quite a bit more boost!
Tuned 200 can crack the head between the valves, but rarely cause any issues.
