NHRA 2020 Rule Amendment SS Intakes???

[bykr]

Originally Posted by SSDiv6

Get off the pipe. Your statement shows the lack of knowledge of porting cylinder heads.

It is not about volume, it is about CSA, volume and shape of the port. You can have a 230cc port volume that is outperformed by a 200cc port volume.

You can, but with equal port configurations which will flow more? Duh. Why do think they're doing this angle milling, to make the intake fit better-lol

[Mark Yacavone]

I don't race Super Stock anymore. I have enough trouble racing Stock, lately. I don't care what you guys do, and not going to suggest anything here.
I can tell you this.
I realize they didn't measure port volume in the old days.
So you guys can call this stuff cheating, being innovative, gettin' competitve, whatever you like but , if Farmer, Greg X , or Marty Barrett were still with us, the first time they laid eyes on this stuff, they would have called it ..
"buh bye"

[Tom Broome]

Originally Posted by SSDiv6

Get off the pipe. Your statement shows the lack of knowledge of porting cylinder heads.

It is not about volume, it is about CSA, volume and shape of the port. You can have a 230cc port volume that is outperformed by a 200cc port volume.

Well....He may not be a "renowned head porter", but he has enough common sense to understand that if you lose volume by drastically milling the intake surface, you gain the ability to change the "CSA, Volume and shape of the port".....To use your phraseology.

Perhaps you shouldn't take his statement as an absolute.

[SSDiv6]

Originally Posted by Tom Broome

Well....He may not be a "renowned head porter", but he has enough common sense to understand that if you lose volume by drastically milling the intake surface, you gain the ability to change the "CSA, Volume and shape of the port".....To use your phraseology.

Perhaps you shouldn't take his statement as an absolute.

Common sense?

As stated in a prior post, legally, Super Stock cylinder heads can be welded and/or epoxied. The angle milling does not have nothing to do with the volume of the ports. The majority of the Super Stock Chevy small block cylinder heads ports have been reshaped with epoxy and most are configured to an oval port from the OEM rectangular port shape.

Therefore, any Super Stock cylinder head can be returned to the appropriate port volume by welding or the use of epoxy.

[Bob Smith]

Again:

http://nhraracer.com/content/general...728&zoneid=132

[Nick Heath]

Originally Posted by Bob Smith

Again:

http://nhraracer.com/content/general...728&zoneid=132

So if I analyzed those blocks of text correctly, here's what's changed:

* Angle milling of cylinder head, exhaust and intake mating surfaces permitted.
* Additional intake manifold bolts holes permitted.
* Spacer plates between intake manifold and cylinder head permitted.