HP Adjustments are posted

[Lee Valentine]

Originally Posted by rtaylor3410

Be sure to check the classification guides and engine blueprint specs too. There are changes that were not posted there as well. For example, 1987 Chevy Camaro 305 190 combo went from 240hp to 245hp and engine specs changed from flat hydraulic to hydraulic roller.,

this is a kick in the nuts,all of a sudden we have 2 engines that are illegal after being built to the rules. And after we make them right we get 5 more horsepower and 60 lbs.

[rick winchester]

Not sure about the others but looks like the change in the Malibu is for aftermarket heads only. already 270 for stock heads. Rick

[MikeMoller]

Originally Posted by KRatcliff

Makes you wonder. I don't see anyone running that combo on Nitro Joes stats. I was told that no runs, no HP reduction will be considered directly by Pat. Guess that rule was just for me.

I was told by Pat C that if the NHRA HP was less than the factory hp it could be considered for a reduction. Most of the reductions fit that, but not all. Curious.Also, the 76 and 77 305 novas both got hit, but only the 77 had runs to cause the hit. They didn't do that to the 302 FFFFords 75-78.

[KRatcliff]

Originally Posted by Frank Castros

I’m not familiar with that rule, however the Six Pack needed it in C for sure. John Leach must be pleased but I’m sure he wished for more. Beep Beep!

Apparently neither is the person from the NHRA that reduced the combo. This is directly from the AHFS rule book. "Once an engine family receives a horsepower increase it is not eligible for a decrease."

http://www.nhraracer.com/content/gen...633&zoneid=132

[Paul Wong]

Originally Posted by Whalen3186

According to the rule book, once an engine family receives a hp increase, it is never eligible for a hp decrease.

Stock had 7 combinations get a reduction. 3 of those combos had an NHRA hp rating higher than the OEM rating:

1977 Malibu: OEM = 160-170, Old = 275, New = 271
1969 Roadrunner: OEM = 390, Old = 400, New = 395
1986 T'bird OEM = 150, Old = 200, New = 197

How were these eligible for a reduction?

Many of those above OEM HP ratings were picked by NHRA officials at the time that assigned a "reasonable HP factor" to the combination. Some of these reasonable assignments were as bad as the inflated 1960s numbers some of the manufacturers assigned. There were some combinations were given as much as 75hp without ever being run. Some needed it others were made into filler for the guide instantly.

[KRatcliff]

Originally Posted by MikeMoller

I was told by Pat C that if the NHRA HP was less than the factory hp it could be considered for a reduction. Most of the reductions fit that, but not all. Curious.Also, the 76 and 77 305 novas both got hit, but only the 77 had runs to cause the hit. They didn't do that to the 302 FFFFords 76-78.

In the case of the reduction I was referring to had the NHRA HP and Factory HP the same before this reduction of 26 hp which was a 10% gift. Pretty big one by anybody's standard.

Pat C told me that no runs will not get any consideration for a HP reduction. This combo didn't have any runs nor was it meeting the other criteria that he quoted you. Makes me question the motive, but they don't care what we think. That is the only constant.

[Whalen3186]

Originally Posted by Paul Wong

Many of those above OEM HP ratings were picked by NHRA officials at the time that assigned a "reasonable HP factor" to the combination. Some of these reasonable assignments were as bad as the inflated 1960s numbers some of the manufacturers assigned. There were some combinations were given as much as 75hp without ever being run. Some needed it others were made into filler for the guide instantly.

Paul, That makes sense and I wondered if that was the case with any of these particular combo’s. I figured somebody like you with some historical knowledge of various combos would know.

[Frank B.]

I asked for look at 2010 Camaro SS at 400 hp with less lift cam and less compression than 2015 Camaro. Got no response.

[Jeff Stout]

In addition, the engine family must NOT make two runs of 0.650 or quicker or any run 0.850 or quicker during the past two (2) review periods, for the review to continue. Once an engine family receives a horsepower increase it is not eligible for a decrease.
For the ones with more then factoryHP. It's based off increases over the past 2 reviews that are not eligible.

[ALMACK]

Originally Posted by Whalen3186

According to the rule book, once an engine family receives a hp increase, it is never eligible for a hp decrease.

Stock had 7 combinations get a reduction. 3 of those combos had an NHRA hp rating higher than the OEM rating:

1977 Malibu: OEM = 160-170, Old = 275, New = 271
1969 Roadrunner: OEM = 390, Old = 400, New = 395
1986 T'bird OEM = 150, Old = 200, New = 197

How were these eligible for a reduction?

The '86 T-Bird 302 combo ( 150 hp ) has been 197 h.p. since Jan. 01, 2015

So it's not a reduction