IHRA hp adjustments
 

AS of 4/30/07 All vehicles classified as "stick" only OR "auto" only accepted to use either......( read can use an auto in a stick only car)........................1) 1969 427 chevy 425/425 + 3 2) 1985 305 chevy 175/245 +3 3) 1967 ford 428 350/358 +3 4) all ford 1969 428-335 (375-10 to 365) in any NON ram air application 5) all GM 1968 thru 1970 230/140 -5 6) all GM 1968 thru 1974 250/155,145,110,100 (140 hp)

novamoation

OH boy,
This ought to be good.

Terry Cain
hchill@aye.net
3129
www.AutographMyCar.com

That 1969 Ford 428 was changed to 365 last spring.

Chris

So that i understand correctly, for example, 1969 Camaro 302, was stick only, could now run an auto?

How the HELL is that Possible?????????????????????????

Bobby Brannon

Now I can run my Viper in Stock Automatic. I really like this.

Curious as to why the 85 Camero 305 took a hit ?

Tom Gould

MAYBE I CAN RUN MY 1940 CHEVROLET STREET ROD IN GT STOCK??????

Allen Lambert

No Chris only your fathers Cougar was changed last year.

Sorry......I did not realize that just Cougars were changed last year....I thought it was all non-ram air.

Chris

Hey Tom,
I'm curious too as to why the 85 Camaro 305 (175/245) took a hit. I'm about the only driver in IHRA still running it, and I'm not rotating the world! I usually qualify within 10 positions of the bottom. However, NHRA did hp this combination a couple of years ago, so I guess IHRA is following the standard. We will get the calculator out and add to the weight box.

Stacie Ridings

I THINK THAT THE STOCK AND SUPER STOCK COMBOS THAT ARE RUNNING OVER 1.00 UNDER IN THE THE EIGHT MILE SHOULD BE LOOKED AT FOR A HP ADJUSTMENT,SOME COMBOS KEEP GETING FASTER AND THEIR HP OR THEIR INDEX NEVER CHANGES

Allen Lambert

Bo, the highest the car will run is SS/CA. However you are on for the show. Anybody else?

>> all ford 1969 428-335 (375-10 to 365) in any NON ram air application

I brought this up last year... here's another example of a combination being factored differently depending on whether or not it has a fresh air system. Wouldn't it be fair and reasonable to knock 5HP off of crate motor cars that do not have a functional hood scoop?


Michael Beard
<u>Staging Light Graphic Design & Printing</u>
Duck Tape/Loctite Racing
H - I - J/CM '80 Volare 360 Magnum

Because there already a soft factor now? That would be my guess...

Lil Duane

Because there already a soft factor now? That would be my guess...

Lil Duane

Mike,
I think they should let all Crate Motor cars run hood scoops of the era of production. The 5 HP reduction would also be good. one or the other.
Jeff Ross

I have no problem with the look of the stock flat hood. But if traditional stockers are factored based on whether or not they have a fresh air system, then that should apply to crate motors as well.

As for crate motors being under-factored, that's a separate topic. I'm not particularly concerned with that one way or another -- I'm just talking about crate motors vs crate motors.


Michael Beard
<u>Staging Light Graphic Design & Printing</u>
Duck Tape/Loctite Racing
H - I - J/CM '80 Volare 360 Magnum

No problem Chris, I sure when your father ask for IHRA to look at the hp on non-ram air 428CJ he thought they would take it off all the Fords not just the Cougar.
I want to Thank Mr. Baker and IHRA for there understanding of my request and changing of the HP rating for all non-ram air 428CJ.
1201stk

Plus those Stock-GT classes are way under rated as well!!!!!!!!

!201stk - we assumed that they would give all non-ram air the same break.....we have trying for years to get them to approve the 850 Holley and the aluminum intake that came on our Mexican cougar....but they dont seem to be biting on that one........maybe next year!

Chris

Chris I thought for sure that stuff came on only the Canadian build Fords..LOL

Didn't NHRA eliminate the ram-air / non-ram-air differences years ago because racers just kept changing hoods and it was determined there was no performance difference? I've never raced a Ford with a shaker hood but I would find it really difficult to believe an "R" spec Mustang or Cougar in D/SA (10#) would go a tenth quicker with a factory shaker hood over a "Q" spec with a flat hood. I would say at 365 HP any 428 CJ will now go a tenth quicker due to the 100# weight savings and loose nothing by having a flat non ram-air hood. There is not enough frontal area to the shaker scoop opening and the Ford shaker is not positioned high enough above the hood line to make any difference.
I don't race IHRA but I would hate to see NHRA follow the lead since I race 428CJ's. They do not need a 10 HP reduction.
Minimum, if the 428's need to be at 365 HP then they need the factory cam specs brought back into play.