IHRA coming to my local track PBIR, Can I run in any of the classes?

[Tweaker]

I'm trying to go through the rulebook to determine if I fit anywhere, I would like to run when the Nitro Jam comes to my local track at Palm Beach International, so If i fit anywhere I can become an IHRA member and get prepared since the race is in January.

I was thinking maybe I fit in the Stock Fuel Injection class 12.00-12.99, Let me know. I'm not sure how strict it is with mods/bolt-ons. I'm going to list my mods so you can perhaps help me know if I belong anywhere or not.

I haven't ran the car yet since i switched to 15 inch wheels and the light weight driveshaft but from my estimates should be in the mid 12's. Looking around 12.40-12.50 for this fall/winter. Previous best was 12.7

The car was dyno'd at 312rwhp

2007 Mustang GT
Engine: 4.6L
Shift Light
Mirror Covers
Aftermarket Grille
Roush Window Louvers
GMS Driveshaft Loop
Hurst Line-Locks
5 Speed Transmission
Ford 4:10 Rear-end Gears
Hurst Billet Short Shifter
Custom VMP Dyno Tune
UPR Sway Bar Removal Kit
Steeda Under Drive Pullies
C&L "Racer" Cold Air Intake
1-Piece Alum Driveshaft
Steeda Upper & Lower Control Arms
Pypes Off-Road H-Pipe
Flowmaster Axle-back Exhaust
15 inch Summit Wheels
26" ET Fronts
27" ET Streets

An Old Photo of the car before the 15 inch wheels+tires.

[Bob Pagano]

First off is Stock Fuel Injection class 12.00-12.99, this is not a reference to et, its weight break. and a fast look at your list you have Steeda Upper & Lower Control Arms, these are not allowed in Stock. I do not have my rule book handy but look under modified stock. Some of the IHRA guys will fill you in.

[Dion Hildebrandt]

I havent got my rule book in front of me but off hand i would say that the grille, the window louvers, the cold air intake ,and the steeda control arms gotta go. And the 12.00-12.99 reference is a weight break figured by a factored hp to weight formula and adding 170 pounds for driver will give you a minimum weight.

[Tweaker]

holy cow weird rule not to allow louvers,grille.. They only allow stock control arms? The stock control arms are horrible lol. Bummer, it sounds like I won't be able to run any classes. That is depressing, figured I fit in somewhere.

Is their any class that the car can fit into?

perhaps modified stock or else where? My grille is just an overlay on the stock grille.. =/ and rousch louvers come on rousch's so its not like off the wall :P

[Alex Denysenko]

Replacement rear upper and lower control arms are allowed in stock.
Only the uppers can be adjustable, the lowers cannot.
I do not think that IHRA would have a problem with the grill or louvers.
Even NHRA allows non Z-28 Camaros to use Z-28 trim.
Aluminum drive shaft is allowed in IHRA stock.
Pullies should be OK.
Cold air kit needs to be looked at by IHRA tech as some direct replacement units are OK.

Good luck.

[Tweaker]

Originally Posted by Alex Denysenko

Replacement rear upper and lower control arms are allowed in stock.
Only the uppers can be adjustable, the lowers cannot.
I do not think that IHRA would have a problem with the grill or louvers.
Even NHRA allows non Z-28 Camaros to use Z-28 trim.
Aluminum drive shaft is allowed in IHRA stock.
Pullies should be OK.
Cold air kit needs to be looked at by IHRA tech as some direct replacement units are OK.

Good luck.

thats good news. My control arms are both non-adjustable.

Do you think I fit more in with Stock Fuel injected or Modified stock, im trying to see who i can contact at IHRA for more info. What division is FL in IHRA?

[Tweaker]

so they add 170 pounds to the car's weight no matter what?

I only weigh 160.

[Bob Don]

Tweaker - You need a crash course in class racing. Classes are determined by horsepower to weight ratios. Each engine has a horsepower rating assigned by NHRA or IHRA. Each car would get a hp/weight factor depending on the listed shipping weight of each vehicle. This is what determines your class. (170 lbs driver weight is added to shipping weight to determine minimum racing weight. It doesn't matter how much you weigh.) You are then allowed to do certain modifications depending on your category. Stock can do so much, Super Stock even more. You then must be able to run on or below the ET index for your class. The problem is that you would probably not be able to run your index without building your car to the limit of the rules. (acceptable cam and valvetrain, blueprinting, gear ratio etc.). If they run a bracket program with the IHRA race, you'd be far better off there.

[Tweaker]

Originally Posted by Bob Don

Tweaker - You need a crash course in class racing. Classes are determined by horsepower to weight ratios. Each engine has a horsepower rating assigned by NHRA or IHRA. Each car would get a hp/weight factor depending on the listed shipping weight of each vehicle. This is what determines your class. (170 lbs driver weight is added to shipping weight to determine minimum racing weight. It doesn't matter how much you weigh.) You are then allowed to do certain modifications depending on your category. Stock can do so much, Super Stock even more. You then must be able to run on or below the ET index for your class. The problem is that you would probably not be able to run your index without building your car to the limit of the rules. (acceptable cam and valvetrain, blueprinting, gear ratio etc.). If they run a bracket program with the IHRA race, you'd be far better off there.

Dang, Sounds complicating. = { I thought in the stock class you could not change your cam and other things. = \

[Dion Hildebrandt]

Originally Posted by Tweaker

holy cow weird rule not to allow louvers,grille.. They only allow stock control arms? The stock control arms are horrible lol. Bummer, it sounds like I won't be able to run any classes. That is depressing, figured I fit in somewhere.

Is their any class that the car can fit into?

perhaps modified stock or else where? My grille is just an overlay on the stock grille.. =/ and rousch louvers come on rousch's so its not like off the wall :P

if your car is not a Roush than the louvers arent stock.