Pontiac 455 hp reduction

[Bobby DiDomenico]

Interesting. Was going to ask how a car gets deleted.

[Glenn Briglio]

Originally Posted by Bobby DiDomenico

Interesting. Was going to ask how a car gets deleted.

Car isn't deleted. Combo with aluminum head gets deleted because gm never made it. Nhra made the mistake of putting it into their books.

[Glenn Briglio]

How does the Pontiac 455 get a reduction when the engine had an increase from factory rating?

[oldskool]

Originally Posted by Glenn Briglio

How does the Pontiac 455 get a reduction when the engine had an increase from factory rating?

Sorry, but that makes absolutely no sense to me at all.

I can name several Pontiac engines that were increased by NHRA, then later reduced by NHRA.

So, are you trying to say that once NHRA has increased the hp, they can't later come back & reduce it ?

[Glenn Briglio]

Originally Posted by oldskool

Sorry, but that makes absolutely no sense to me at all.

I can name several Pontiac engines that were increased by NHRA, then later reduced by NHRA.

So, are you trying to say that once NHRA has increased the hp, they can't later come back & reduce it ?

If a racer causes the hp increase then no it can't be reduced. If Nhra increases hp before it is introduced into their classification guide then yes it can get a reduction. Hope this is correct from what I was told by Nhra.

[SUPERFTAN]

So if the combo is deleted because GM never made it how is it that the Yenco Nova withe 350 LT 1 IS in the Guide Book

[Glenn Briglio]

Originally Posted by SUPERFTAN

So if the combo is deleted because GM never made it how is it that the Yenco Nova withe 350 LT 1 IS in the Guide Book

Good question......above my pay grade

[GUMP]

Originally Posted by SUPERFTAN

So if the combo is deleted because GM never made it how is it that the Yenco Nova withe 350 LT 1 IS in the Guide Book

Are you saying that Chevrolet didn't produce a COPO Nova with the LT1 350 in 1970? I'm pretty sure that one is well documented.

[Jeff Stout]

Originally Posted by Glenn Briglio

If a racer causes the hp increase then no it can't be reduced. If Nhra increases hp before it is introduced into their classification guide then yes it can get a reduction. Hope this is correct from what I was told by Nhra.

My Olds 307 in Cutlass did not get reduction because of being hit. In my wagon I received 3 hp off. G body to B body platforms.

[DG]

NHRA used to provide the run data base with averages for each combo. It made it easy to understand their decisions. I wish they would post the date base and averages again.