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Mike Carr · 12-01-2010, 11:27 PM

IHRA Super Stock Production is pounds per cubic inch. Weight of the car with driver, divided by the cubic inch of the engine = the class you will run. If it fits into, say, SS/PAA-1 (7 pound class) with a 427, you would weigh 2,989 pounds.

In horsepower to weight categories, IHRA generally mirrors the NHRA ratings, but not always. As an example, the 1990's LT-1 in a Camaro/Firebird for SS/IA, it's rated 279 in NHRA and still at 275 in IHRA.

All the IHRA info, including people to contact regarding a question, can be found here.

http://www.ihra.com/competition/index.php

12-01-2010, 11:27 PM	#11
Mike Carr VIP Member Join Date: Nov 2001 Location: Enon Valley PA Posts: 1,650 Likes: 234 Liked 83 Times in 37 Posts	Re: NHRA Stock/Super Stock Classification IHRA Super Stock Production is pounds per cubic inch. Weight of the car with driver, divided by the cubic inch of the engine = the class you will run. If it fits into, say, SS/PAA-1 (7 pound class) with a 427, you would weigh 2,989 pounds. In horsepower to weight categories, IHRA generally mirrors the NHRA ratings, but not always. As an example, the 1990's LT-1 in a Camaro/Firebird for SS/IA, it's rated 279 in NHRA and still at 275 in IHRA. All the IHRA info, including people to contact regarding a question, can be found here. http://www.ihra.com/competition/index.php __________________ Mike Carr, Tri-State S/SS Association President Looking for 2015 S/SS Race Sponsors Contact me if interested buffdaddy_1302@hotmail.com (724) 510-5912