Older Superstock GT cars with scoops

[bill dedman]

My reference was to factored horsepower, not OEM ratings.

I thought that if the engine had a factored HP rating that depended on fresh air for that rating, then it should be allowed fresh air in a GT chassis. But, since they have removed all the separate factors for fresh air engines, it's a moot point.

[BBF67]

See if it still is a "moot point." You race SS/GT competitively with a non-ram air engine in a non-ram air body. Some high roller puts the exact same non-ram air combo into a totally different body. The thing is his car has a hood scoop that actually works and works very good. This someone goes to a mineshaft and lets his ego outdo his brain. Automatic horsepower hit!!! Now your stuck with a horsepower hit that cannot be touched with your non-ram air body no matter what you do.

Don't look like a moot point to me!

[bill dedman]

Good point, BBG67. I guess the obvious answer is, don't build a GT car in a chassis that can't run a hood scoop.

[Adger Smith]

Not necessarily true on your last statement, Bill. Since the original CAR factors W/original engine are used to determine the GT car min weight, following that statement might not be an advantage. The fresh air packages can put you at the middle or bottom of a class minimum weight . Then there are others that will put you at the top of the class weight. Sure they might help overcome some problems, but is that enought to make a car that is at the bottom of the class weight run with another combo w/out FA that is at the top? I think you need to take a longer look at the situation & study the classification guide before trying to make abolising the Fresh air car factors an agenda. I Have been looking to the future in SS/GT and have found many freshair packages to be very versatile. With a hood change & HP change some cars can fit many classes. Some come in at the top, some in the middle & some at the bottom. A racer just has to figure it out. I don't think there is any overall magic in just having fresh air in GT classes. Esp the way the class is figured. My .02 after watching this thread develop.

Adger Smith
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[bsa633]

My guess is that an older car with "fresh air" will not be picked due to that against a newer "slicker" car..so fresh air or not probably dosen't make the difference...but added hood clearence maybe could offset the aerodynamic disadvantages some..

personally i would hate to see a "Race-Hemi" whit out a race-hemi..but thats me!

[John Lang]

Dill Dedman! Check the NHRA guide for 67 Ply or Dodge B Bodies which are Belvedere's or Coronet's W/HEMI's Wfa they are rated at 430HP , vs 425 for Non fa HEMI cars, i' m pretty sure. John Lang

[bill dedman]

Okay, John... I'll check that out. Thanks for the tip. I figured I'd miss some... NHRA is nothing if not inconsistent.

Bill

[bill dedman]

Adger,

That's a very sharp observation on your part, about the shipping weights. I guess I just figured that since you can add or subtract weight to move up or down a class (from the "natural" class,) that it wouldn't matter. My bad...

Thanks for pointing that out; it is certainly a valid consideration! I should have looked before I leapt... LOL!

Bill

[X-TECH MAN]

Now all of you guys that have been keeping those classic AMC "Pacers" stored away can install a street Hemi and go racing.....lol.

[Ed Wright]

It makes a difference in some factors, if ram air or not.
These are for the 1999 Firebird with the GM LS1 engine in GT:


Flat Hood: Ram Air:
Factory: 305hp 320hp

GT Stick: 305 320

GT/Auto 305 324

This past summer they gave the GT/Auto LS1 ram air cars 4 hp, not to the others.
The rest are the factory ratings.