Indy Teardown Warning

[X-TECH MAN]

Originally Posted by Tom Broome

Let's imagine what we can accomplish by digitizing a bunch of "stock" heads !

NHRA can now qualify the extent of these variables and use that information to discern the competitors pushing the boundaries of the rules.
I would anticipate that currently there is not a big enough database to qualify ,or disqualify, most OEM castings. There are probably some castings that are modified outside the range of credulity, those racers should be the ones to fear inspection.

The cylinder head garbage has been going on a LONG time. It started back before the mid 1980's. I know of several who did this for a fact and still do. I could name names but that would start a war so I won't. NHRA expanded on it by allowing the any duration and over lap rule along with any valve spring pressures. You might as well be running Super Stock and eliminate the stocker classes all together !

[Tom Broome]

Originally Posted by X-TECH MAN

The cylinder head garbage has been going on a LONG time. It started back before the mid 1980's. I know of several who did this for a fact and still do. I could name names but that would start a war so I won't. NHRA expanded on it by allowing the any duration and over lap rule along with any valve spring pressures. You might as well be running Super Stock and eliminate the stocker classes all together !

I don't have to tell you, this cylinder head garbage has been going on since Super Stockers had unported heads. Except for the SS/C AMX's, talk about a can of worms! That's why we now have Super Stockers with these fragile, welded, leaking, piles of iron.....art projects.

I can't name names either, but I have worked on parts for stockers that show me iron intake manifolds that are pounds lighter than OEM parts.

Head cheating is so rampant in some circle track arenas that I once had a "renowned" tech man want to throw out a set of Dart Iron heads because they "looked too good, they must be acid dipped" (I went through that acid dipping phase in the 80's not going there again). Runner volumes were then found to be smaller than spec, so he then wanted to throw the car out because the heads were TOO legal.