True Horsepower Classes in NHRA

BBF67 · 12-15-2015, 09:09 AM

Quote:

Originally Posted by Tony Corley

Correct me if I'm wrong, but I truly fail to see the difference in factory involvement now compared to factory involvement in the '60's and early 70's...... Didn't they also build limited production, factory racecars then that dominated stock?

Rant over.

Let's look at the limited production early factory racecars and where they actually ran.

63 Z11 Impalas ran FX, 63-64 max wedge Mopars ran S/S, 64 Thunderbolts ran S/S, 65 race hemi Plymouths and Dodges ran S/S, 68 hemi Darts and Barracudas ran S/S, 69 AMX with crossrams ran S/S. None of these limited production factory racecars were legal for stock classes yet they had serial numbers and although it was not recommended, did get licensed for the street in a few cases.

Can't do that with todays limited production factory racecars that have been allowed to run in Stock. They should be running in S/S only.

Dick Butler · 12-15-2015, 10:40 AM

I am never sure what the HP rating is all about. Only thing I can imagine is a reason for someone to buy a new car. Newer factors are always a guess. (Usually off by 100 or more HP).Even the old cars lurking in the books are found to be off by many hp and that's why people day dream of dominating by building them. Once they are built and paid for a different combo surfaces and many "perfect combinations" become also rans. This is the long term fault of the lb/HP classification method but it is the only way to get apples, oranges and bananas into a class system to race together.
Many people miss Modified where is was lb/cubic inchs. This took away the fact your combo was falsely factored and that's why you lost the race. Some complain that money affected these classes but maybe people should look again at the costs of a new Stocker from the factory which cannot be licensed if it fails to win.

Dick Butler · 12-22-2015, 11:38 PM

How many Hp does a new 427, 425 hp rated Copo motor make? Anyone? Might that be a wonderful motor in an old car?

Mike Keener · 12-23-2015, 12:03 AM

Every dyno is different Dick but a reasonable figure for a 427/430 COPO is in the 810 range. A shootout 427/450 version is around 880 ish.

There again every dyno is different

Mike Keener · 12-23-2015, 12:08 AM

These figures in my previous post are for true Stock Eliminatior engines. A Super Stock motor may be worth another 75 or so if it is maxed out.

Dick Butler · 12-23-2015, 10:29 AM

Thanks. Was evaluating the motor for GT/AA versus older stuff. Bet it would be better as hp rating is newer.

Jim Bailey · 12-28-2015, 08:22 PM

Ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha .... you guys are killing me ...or you didn't see George Yego's Copo 350 run at Columbus in the CIC race ?

12-15-2015, 10:40 AM	#2
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: True Horsepower Classes in NHRA I am never sure what the HP rating is all about. Only thing I can imagine is a reason for someone to buy a new car. Newer factors are always a guess. (Usually off by 100 or more HP).Even the old cars lurking in the books are found to be off by many hp and that's why people day dream of dominating by building them. Once they are built and paid for a different combo surfaces and many "perfect combinations" become also rans. This is the long term fault of the lb/HP classification method but it is the only way to get apples, oranges and bananas into a class system to race together. Many people miss Modified where is was lb/cubic inchs. This took away the fact your combo was falsely factored and that's why you lost the race. Some complain that money affected these classes but maybe people should look again at the costs of a new Stocker from the factory which cannot be licensed if it fails to win. Last edited by Dick Butler; 12-15-2015 at 10:43 AM.

12-22-2015, 11:38 PM	#3
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: True Horsepower Classes in NHRA How many Hp does a new 427, 425 hp rated Copo motor make? Anyone? Might that be a wonderful motor in an old car?

12-23-2015, 12:03 AM	#4
Mike Keener Member Join Date: Apr 2002 Posts: 294 Likes: 102 Liked 24 Times in 13 Posts	Re: True Horsepower Classes in NHRA Every dyno is different Dick but a reasonable figure for a 427/430 COPO is in the 810 range. A shootout 427/450 version is around 880 ish. There again every dyno is different __________________ Mike Keener A/S B/S C/SM

12-23-2015, 12:08 AM	#5
Mike Keener Member Join Date: Apr 2002 Posts: 294 Likes: 102 Liked 24 Times in 13 Posts	Re: True Horsepower Classes in NHRA These figures in my previous post are for true Stock Eliminatior engines. A Super Stock motor may be worth another 75 or so if it is maxed out. __________________ Mike Keener A/S B/S C/SM

12-23-2015, 10:29 AM	#6
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: True Horsepower Classes in NHRA Thanks. Was evaluating the motor for GT/AA versus older stuff. Bet it would be better as hp rating is newer.

12-28-2015, 08:22 PM	#7
Jim Bailey Senior Member Join Date: Aug 2004 Posts: 674 Likes: 15 Liked 584 Times in 94 Posts	Re: True Horsepower Classes in NHRA Ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha .... you guys are killing me ...or you didn't see George Yego's Copo 350 run at Columbus in the CIC race ?