2023 AHFS system "cliff note version"

[Marty Rinehart Jr]

I would like to clarify some questions with the 2023 AHFS.
I talked to a lot of people lately and most are not quite sure how this really works.

Here is a short and sweet version of the New AHFS Guidelines.

New AHFS Guidelines

1. ALL runs under -0.65 the index will NOT be used to compute year end averages on any combinations (this essentially eliminates half of all competitors competing in STK/SS)

2. ALL runs over -0.65 under the index will count towards computing the year end average for each engine combination. Your best qualifying run at each event(including C1 class runoffs), all other class runoffs and elimination runs will be counted in the review data.

NOTE: All NHRA National Opens and Jegs All-Star runs do not count towards the year end review data

3. There is no more “Mineshaft” rule.

4. Two one second under runs on any combination, regardless of the class, will trigger a year end review

5. The automatic HP threshold has been raised from -1.20 under the index to -1.30 under the index. This will initiate a minimum 5.25% increase in HP and/or -0.25 change in index the Monday after the event which the run occurred.

6. If the engine combination is reviewed at the end of the season and found to be over -0.85 under in any individual class and/or across the entire engine combination family a HP increase and/or index decrease will be initiated.

7. If the engine combination reviewed is deemed to be over -0.85 under, the FASTEST run made by that combination throughout the year will be used to calculate the HP increase and or index decrease. (ie. Engine avg. is -0.856 under but the fastest run was -1.17 under, a 2.25% increase in HP and/or 0.10 decrease in index will be initiated)

NOTE: A realistic minimum run data threshold should be implemented immediately. Looking at the statistics curtesy of Nitro Joe’s Statistics. A -0.50 under the index minimum run data threshold would be more conducive to calculate engine combination run data averages.


I hope this makes it easier to understand. Below is the link to the NHRA AHFS as it is written.
https://www.nhraracer.com/content/ge...633&zoneid=132


If you would like to receive Div 1 SRAC emails and updates, please email me at Marty@RinehartsPerformance.com with your Name, Class, NHRA#.

[Markeracer]

Kudos and nice work Marty for the Cliff Notes explanation above. Now THIS is the type of help that we need from the SRAC reps! Thanks.

[MR DERBY CITY]

I would like to take this opportunity to Thank all the D1 racers that voted for Marty Rinehart. Thank You, Thank You , Thank You ….

[Frank Castros]

Marty,
Thank you for your great work. If I missed it, will Indy 2023 be AHFS free and unaccountable?

[Marty Rinehart Jr]

Originally Posted by Frank Castros

Marty,
Thank you for your great work. If I missed it, will Indy 2023 be AHFS free and unaccountable?

Thank you Frank,
At this time, Indy will be included in the HP review data for STK/SS.

What is everyone’s opinion on this subject?
AHFS at Indy or No?

[Billy Hampton]

Where I believe this is heading is towards a true performance based heads up system after this is "sorted out" in a year or two. So instead of class only heads up runs, ALL of eliminations can be heads up runs. Isn't this the way it should be anyway? Bobby F, Your thoughts? You should be rewarded for choosing the best car for the best class and doing the best you can at building it.

[SDT1DYI]

They told me Stock was it difficult to understand , I guess they were correct.

Steve Teeter Stk 620

[Alan Roehrich]

Marty,
That was an excellent post, well written and informative. That's exactly why I supported the guys voting for you in Division 1. I knew they'd be getting a great representative. And they did.


The rest here is NOT directed to Marty.

As far as it goes, it looks a lot like NHRA is seriously penalizing guys who have something that runs. That hit in Marty's example is pretty harsh.

And you know, my junk ran 1.00 under, and it did NOT have anything illegal in it. The idea that anything that runs 1.00 under must be illegal is total crap.

[T Ghent]

As we have just had experience with this at the Baby Gators I would like to give our explanation to the way it played out. First and most important to the scenario is that my son has only been racing for the last year and a half. He is 21 years old. There were 3 cars in our class and with an index of 11.00 he won the first round but went 9.984 for the first trigger. So now he is in the final against a very good competitor. So my choice was to protect the combo and deny him his first shot at a possible Wally or do you let him race for it???

[Carguy49]

As a father I think you made a very good call. Your son now has a class winner Wally. Kudos to him on a job well done.