Quote:
Originally Posted by tommurphy73
Appreciate your prompt answer. I have already read your post twice but will read it again (and again) to see how it all works.
Out of interest what sort of power/torque were you getting from the 2.0L
Best Regards
Tom
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I've never been asked to build an ultimate bhp only engine that actually went on an engine dyno to reveal an answer to your question. I've done rally spec, hotrod with single carbs, fast road, 46/36 heads but not with ultimate carburation and god knows what else but never everything perfect for bhp in the one engine or that went on an engine dyno. I trust rolling road power figures about as far as I can spit a rat.
Probably the closest to an answer was a rally spec head I did for an engine that already had a proven Cossy 2.0 bottom end, DCOEs and an Emerald Phase 5 race cam. The head was already a ported 44.5/38.1 and my job was to port it properly and make it right. That put out 168 bhp at the wheels on a rolling road. Make of that what you will but I never saw the bottom end or cam or had any chance to perfect it all.
A 45.7/36 head I once did went onto a rally spec engine on an engine dyno with a Kent rally cam of some description (RL32 I think) but the owner wanted to build his own bottom end to save money. The bottom end blew up four times before they'd completed the dyno tests and the closest I got to an answer from the dyno operator was "it was showing very close to 200 bhp before it blew up last time." They did finally go to a "professional" for a bottom end, although not me, but that blew up too. After that I lost contact with the story.
If someone ever did come to me with enough money to build a no holds barred engine to beat the ones old baldy talked about in his book I'm sure I'd give him a run for his money. Especially as I know more about head flow than he does
{ducks and covers}
He's such a bad loser though he'd probably go and blag titanium valves, springs and get everything ceramic coated free of charge from his contacts and all the other stuff I can't afford just to try and beat me.
Dave