Preliminary NMCA Stock/Super Stock (S3)Compo Rules 2017

[ALMACK]

Originally Posted by Jim Bailey

My recommendation would be to use IHRA Classes and Indexes. You'll solve about 75% of problems, in advance, keeping the Older Carburetor cars separated from the Newer Fuel Injected cars. I would also combine sticks and autos into the same class.

I am in favor of using IHRA indexes to save confusion.
I cannot seeing one single NHRA racer not liking the idea of getting an extra 3 tenths advantage during qualifying.

However, keeping the carbed cars separate from the EFI cars may not work because NHRA has equivalent classes for the EFI cars.

Either way, I would enter my EFI T-Bird as an IHRA car because the factored hp is less in IHRA for the same combo, therefore less weight I have to tug around.

[SS3718]

Originally Posted by ALMACK

I am in favor of using IHRA indexes to save confusion.
I cannot seeing one single NHRA racer not liking the idea of getting an extra 3 tenths advantage during qualifying.

However, keeping the carbed cars separate from the EFI cars may not work because NHRA has equivalent classes for the EFI cars.

Either way, I would enter my EFI T-Bird as an IHRA car because the factored hp is less in IHRA for the same combo, therefore less weight I have to tug around.

Alan, I think many people will do exactly as you have said and will claim IHRA due to the beneficial factors etc. To keep it simple, I think it should be all NHRA factors unless your car ONLY fits an IHRA class (i.e. SS Production classes or Crate Motor).

On a separate note, I'm not sure I understand how "weight" will not be a technical requirement. Maybe someone can clarify!

In terms of the heads up, I think it could work. Basically, as long as you run your car within 0.10 of "wide open" at all times, you should be able to cover your "heads up dial-in". Bottom line, with this scenario, the faster car will most likely still win.

[btrc]

Originally Posted by ALMACK

I am in favor of using IHRA indexes to save confusion.
I cannot seeing one single NHRA racer not liking the idea of getting an extra 3 tenths advantage during qualifying.

However, keeping the carbed cars separate from the EFI cars may not work because NHRA has equivalent classes for the EFI cars.

We run both IHRA and NHRA but do not have the advantage of the .3 easier index in IHRA because we have one of the dreaded new cars, even though ours is pretty much a stock combo. In fact, it is backwards NHRA FS/H - 11.50, IHRA DD/FIA - 11.30 We do get to take 165 lbs. out in IHRA but we can't get it out anyway so we don't bother. In the end qualifying, unless you are #1, doesn't mean a whole lot.