ahfs question
 

In this statement it says any run of 1.25 is automatic even at altitude tracks.

Runs of 1.250 or more under the index will be reviewed and adjusted Tuesday following the event. Runs at National Events, Divisional Events, and National Open Events, including those at altitude factored race tracks, are included in the 1.250-second-or-more-under analysis. This is done to better react to any out-of-line indexes or under-horsepowered combinations. Therefore, at all such events, a 3.25 percent horsepower adjustment or index reduction will be initiated Tuesday following the event. The decision to adjust horsepower or to reduce the index will be at the discretion of the NHRA Tech Department

Does this mean 1.25 under the altitude index or 1.25 under the sea level index?

Re: ahfs question
 

I have a sneaking suspicion they mean the altitude factored index. Guess we will not know until they clarify the rule or the first race it happens. Jim

Re: ahfs question
 

I hope you are right Jim. But I woulkd still like to go to a density altitude format. To really make it equal.

Re: ahfs question
 

It should count for AHFS at alt. tracks based on alt. index. The factor is good enough for records, it should be good enough for HP. Competition Eliminator can get their indexes hit at altitude tracks based on alt. indexes, S/SS should also.

Re: ahfs question
 

I agree 100%.
Besides everyone knows that a big block isn't affected nearly as much as the small block at altitude. Right?

Re: ahfs question
 

Ty the comp cars don't get hit during qualifying.

Re: ahfs question
 

It's sad that so many people know so little about the rules they race under.

Re: ahfs question
 

Ty,

Do you know that if you run 1.25 under the altitude factored index for the record, that you don't get the record at 1.25 under? It's LESS than that, and it varies dependant on which altitude track you set it at and the correction factors applied when it's factored back to sea level. So then it really isn't a 1.25 under run, and shouldn't be the cause of a HP factor. But we have no clarification on that either!!

The fact that NHRA personel previously had to do a bunch of paperwork to figure this out at altitude tracks is the reason they just let altitude factored runs go until now.

Jerry

Re: ahfs question
 

Wait a minute. It seems that everyone is getting caught up in the emotional part of this discussion and speculation. The answer is right there in front of you. Strip away all of the B.S. and political nonsense and read the words.

The decision to adjust horsepower or to reduce the index will be at the discretion of the NHRA Tech Department


End of story. Everything else is secondary and irrelevant. Plead your case but in the end it's their decision.

Re: ahfs question
 

That sentence alludes to an either/ or situation, not some arbitrary decision.
No wonder you're still a Private. Get back in line, soldier

Re: ahfs question
 

Mark,

I don't think it's an either/or situation applicable to all classes. NHRA was just stating that adjusting HP (for Stockers/Superstockers) --- OR --- Index (for Comp style cars and Hemis) would be at their descretion. In other words, the 1.25 under barrier may not be anchored in concrete.

Jerry

Re: ahfs question
 

Jerry, I can't think of a past example where they have done anything other that the 1.40 hits or the AH index reduction because of the exclusivity of the combo.
Can you?

Re: ahfs question
 

Mark,

No, I can't. But since the inception of AHFS, NHRA has never intimated that changes could be made "at the discretion of the NHRA Tech Department". Now they have. Which might mean that a 1.25 under run at Boise in the Spring in mineshaft air may not get HP or Index. :)

Jerry

Re: ahfs question
 

Yes I can.
They gave me 13 horsepower at once The car was rated at 152 they raised it to 165 (in one hit). And at the time, I never went fast at a national event.
Do the math how does 3.25% of 152 equal 13 . By my non fuzzy math it comes out to 8%.
Thats were there discretion comes in. You have to play by the rules, THEY DON"T

Re: ahfs question
 

Art, they multiplied the 3.25% times 2.5 atmospheres for the amount of boost you were running at the time, and it comes about to around 8%. As good a guess as any, huh?

Jerry

Re: ahfs question
 

You guessed wrong.
You guys with this boost stuff should really read a bit before you post about the evils of boost. How much boost do any of you think I was running? Do you honestly think you can put unlimited boost into an engine? Remember this was a stocker You can't run huge water to air intercoolers. I couldn't run any intercooler at all. The only adjustment I had was fuel pressure. 95% of the stockers out there flow a lot more air then a stock head would flow. But if you add a few pounds of boost people think you have this huge advantage, and anybody could go just as fast.
The car I run now has no intercooler either. I have to ice the intake manifold to go fast
Just like everybody else.

Re: ahfs question
 

Art,

It was supposed to be a light-hearted way of explaining how NHRA got there. It just so happens that 3.25% times 2.5 comes out to 8.125%. Pretty close to the 8% you mentioned. Sorry!

Jerry

Re: ahfs question
 

I'm sorry Jerry. Didn't mean to jump on you.
It's just that the boost is a touchy subject with me. And whether I got hurt by the horsepower or not, they broke their own rules by doing it.

Re: ahfs question
 

Has anyone done a spreadsheet of this for the various tracks that could take the records list and autocalc it across ?

If its sounds like something that someone else would like to do/see but dosent know how, I know how to do the excel part I just need someone to check/verify a couple of the calcs as well as be 100% sure Im putting the right info into the sheet.

PM me if youd like it, personally Id like a list of all the records and what has to be run where to beat them on alt factors.....I like it all laid out in front of me....

Cheers

Re: ahfs question
 

Anybody known the answer? Altitude tracks at national and division events, 1.25 under altitude index or 1.25 under sea level index ? AHFS Can somebody ask at the Winternational`s? Tried to call Bruce no answer. Tom