Originally Posted by
RS500
What can we expect from cosworth yb engines in the next few years??
Can we expect 700 + bhp from a street YB engine ??

707bhp on Optimax from mine

. Can I ask what MikeR considers HC in a YB engine producing near 800bhp, over 7.5:1 or maybe even 8:1 . Genuine question after Knowing what Mark now builds.