SeanDezart
Well-Known Forum User
13:1 ?
not yet - ran out of time - and yes that's what I'm afraid of - but I'm ever the optimist...
when you say error I'm assuming both retard and advance are equally risky?
13:1 compression ratio.
The camshaft is reprofiled to a .500 lift and .280 duration
No worries, yes the L series is classed as an "interferance engine" IE the valves and pistons occupy and share the same spaceNot that Steve needs my confirmation, but yes, piston cut-outs don't stop it being an interference engine.
13:1 is agressive given the fairly modest lift and duration but if I remember the E31 head had a more pronounced kidney shaped chamber which should help manage the quench better than an overly skimmed E88 or 42 which at 13:1 would go into det on an agressive build (been there )
Blimey, didn't realise it makes that much difference - my E88 was pinking like a good 'un at just over 11:1. I should probably get on with my P90a head then if we can get up towards 13:113:1 is agressive given the fairly modest lift and duration but if I remember the E31 head had a more pronounced kidney shaped chamber which should help manage the quench better than an overly skimmed E88 or 42 which at 13:1 would go into det on an agressive build (been there )
Franky you can read the long thread if you like. It's epic
What's the new trading name then?