what will cause piston to break or melt

[gmh308]

I have a collection of his books... good content and good writing style easy to read...

Does he do any books that cover header design well?

And does Heywood get into this? My notes on this are long gone, and so is that part of my memory where that info was....... LOL

[joecar]

Vizard does talk about headers in his books, and there is a website where he goes deeply into header design (I have to look for it again).

Heywood does not talk about headers... he talks about engine theory in a theoretical manner (heavy in maths).

Vizard talks empirically about engines and engine modifications based on his/others experiments, in a very hands-on manner, and he does bring some theory into it as the need arises.

[Sid447]

A website,

Pretty much full of DV and some others, who are into serious "stuff."

http://www.gofastnews.com/board/

DV went into headers, exhaust and muffler design quite a bit in this book:-

http://www.google.com/products/catal...tle#ps-sellers

Exhaust tuning article (amongst other things)....

http://www.geocities.com/motorcity/t...92/vizard.html


Whilst getting back to the thread....This was caused by detonation, possibly too much timing on a cylinder that runs hotter than the others in an LS1. Right under the exhaust valve.

Oddly enough, that particular cylinder had previously cold-cranked @ 190psi which was ~15psi higher than the average of the other seven which experienced no damage whatsoever (good old GM production tolerances).