NHRA hp updates - Page 4

Billy Nees · 12-18-2022, 07:30 PM

Quote:

Originally Posted by mnmaxwedge

That would require them to find qualified people which they surely won't do. A better solution on their part is to run Stock and Super Stock like Super Gas cars. You could only run your published index, any faster you lose. No dial unders or heads up! Wouldn't it be fun to see Stock and Super Stock cars with timers and throttle stops.

The sad part of your post is that, IMHO, NHRA is more likely to do something like that than hire qualified people. They (NHRA) really don't want the complicated rules that go along with S/SS but they don't want us to leave because there are so many of us.

Alan Roehrich · 12-21-2022, 02:51 PM

Quote:

Originally Posted by Mike Gray

Oh, okay I’m catching on to the new AHFS if I run BETWEEN .650 - .850 under they will like me and over .850 under and they will send me hate mail. Do I understand this correctly that my combo in B can affect other cars from AA - C because it’s in the same engine family even though the engine specs may be different, like different heads and valve sizes? I must have skimmed over the paragraph below too quickly.

“1st screening: The average for all vehicles running the particular engine family combination being reviewed is included in this screening. The review process will average runs in ALL classes TOGETHER with the same transmission type & the same body platform.”

Your combo cannot affect anything other than that same engine combo. If your combo has different heads, valve sizes, etc, then it doesn't affect combos that don't have the same specs. So, if your combo has 2.07"/1.725" valves and oval port heads, it will not affect a combo with 2.195" and 1.725" valves and rectangle ports.

Bob Shaw · 12-21-2022, 07:46 PM

That's the way they say it works. For the 4.3 Chevy tbi engines they factor flat tappet cams, roller tappet cams, 108 wheelbase, 117 wheelbase, 430 lift cams, stock lift cams, cars or trucks together. All are considered the same engine family and body style.

e vassar · 12-21-2022, 10:43 PM

Quote:

Originally Posted by mnmaxwedge

That would require them to find qualified people which they surely won't do. A better solution on their part is to run Stock and Super Stock like Super Gas cars. You could only run your published index, any faster you lose. No dial unders or heads up! Wouldn't it be fun to see Stock and Super Stock cars with timers and throttle stops. It would save NHRA the trouble of switching back to a full tree after the SG/SC cars run.

Yeah..I'm all for this! Just adjust my weight to run dead on the index! Hit the tree and drive the finish line.
Would sure save me a lot of money im fixin to spend. Probably have 200 stockers at divisionals.

e vassar · 12-21-2022, 10:53 PM

Quote:

Originally Posted by Billy Nees

The sad part of your post is that, IMHO, NHRA is more likely to do something like that than hire qualified people. They (NHRA) really don't want the complicated rules that go along with S/SS but they don't want us to leave because there are so many of us.

Exactly!

Mike Gray · 12-22-2022, 02:16 AM

Quote:

Originally Posted by Alan Roehrich

Your combo cannot affect anything other than that same engine combo. If your combo has different heads, valve sizes, etc, then it doesn't affect combos that don't have the same specs. So, if your combo has 2.07"/1.725" valves and oval port heads, it will not affect a combo with 2.195" and 1.725" valves and rectangle ports.

Okay, makes more sense. Why couldn’t they just say running the same engine specs rather than “engine family”.

Terry Cain · 12-23-2022, 10:49 PM

Quote:

Originally Posted by Mike Gray

Okay, makes more sense. Why couldn’t they just say running the same engine specs rather than “engine family”.

They wouldn't do that. They paid a law firm to write the wording.

Mike Gray · 12-23-2022, 11:18 PM

Quote:

Originally Posted by Terry Cain

They wouldn't do that. They paid a law firm to write the wording.

The FE engine family is confusing enough with all the different variations. There are numerous combinations that could be in the same class. Now I see how this could help with the average for each because hardly any two 428 cars are running the EXACT same combinations.

Bernhard · 12-28-2022, 04:04 PM

What effect would bringing back the factory valve spring rule have?
Would this not simplify tech and negate some of the advantage found in cylinder head and intake advancement?

12-21-2022, 07:46 PM	#33
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 427 Likes: 280 Liked 290 Times in 58 Posts	Re: NHRA hp updates That's the way they say it works. For the 4.3 Chevy tbi engines they factor flat tappet cams, roller tappet cams, 108 wheelbase, 117 wheelbase, 430 lift cams, stock lift cams, cars or trucks together. All are considered the same engine family and body style. __________________ Bob Shaw V/SA 515

12-28-2022, 04:04 PM	#39
Bernhard Junior Member Join Date: Jan 2012 Posts: 30 Likes: 0 Liked 1 Time in 1 Post	Re: NHRA hp updates What effect would bringing back the factory valve spring rule have? Would this not simplify tech and negate some of the advantage found in cylinder head and intake advancement?