Re: material for exhaust valves
 

I didnt know that. I'd like to see a super slow-mo of the production process. sounds like it'd be a cool thing to see.

Re: material for exhaust valves
 

no need to hate guys, I was just asking for sake of conversation, I was interested in what the advantages/dissadvantages would be,and I thank everyone who answered

I am not trying to overbuild my engine,just maybe here and there try a few new ideas. If anyone does have any sudjestions of things that would be beneficial for building the engine other than teh obvious common things,please post them up or PM me, I just wanna do a little "outta the box thinking" and even if things never do get put into action it is certainlly educational to look into each one

Re: material for exhaust valves
 

Nonsense, it is always hate-thirty on HMT. :7

Yeah, forget the "obvious common things" and go for the "obvious common sense things"

Like, first off, set a goddamn power goal so the parts you need become apparent.

Re: material for exhaust valves
 

350whp using stock roda, pistons and crank

Re: material for exhaust valves
 

http://www.honda-tech.com/zerothread?id=1622667

Don't be a wuss, go all out, scroll down about mid-page!

Re: material for exhaust valves
 

Stock crank is fine to over 1000.

Rods, pistons are borderline. The problem is thermal loading and detonation on an LS as you approach knock limit, typically 350 whp. Light "inaudible" detonation places stress on ringlands, forces the rod down very hard momentarily so that the oil film parts between crank and upper rod bearing.

Water injection will cool the piston and combustion chamber greatly (aluminum is half as strong at 600 deg F as at room temperature, much less at actual combustion temps, you strengthen the piston by WI). It also adds a good bit of knock limit, typically 15% for 50% water:fuel ratio. I'd say you stick with WI.

I'd also steer you to a set of cams and valvetrain, if you want to be different. Nothing like a little camming at idle, followed by turbo whine, to make the idiots do a double take.

Re: material for exhaust valves
 

Heywoods book was a pain in the balls

Re: material for exhaust valves
 

Ya that norwood project was from like 99 that never saw the track

Re: material for exhaust valves
 

Over half of Taylor's two volume ICE in theory and practice's bibliography is either contradictory, or doesn't quite mean what he says it does. Frankly, I've never read Heywood, but I'm told it's more of the same; Heywood and Taylor get drunk and kiss or something.