Quote:
Originally Posted by Harry 6674
Having never been to an IHRA track I'm not sure how the class cars compare with the NHRA cars? Doesn't the IHRA allow wider tires and deep pans in stock? Maybe the NHRA racers feel they are at a disadvantage and not willing to change their cars to make use of the rules.
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Crate Motor cars are allowed up to 10.5" measured slicks, but most stay with 9". "Regular" deeper pans (no pan rail kick-outs or steering through sump) are also allowed in CM but not "regular" Stock. Roller rockers have been made legal for all stockers except Pure Stock for reliability. Blueprint specs are in affect for all combos.
NHRA stockers don't need to change anything. Since there is no heads-up between regular Stock and CM and the Nitro Jam qualifying sheets show a wide variety of class diversity, I can't see any disadvantage.
It may be easier and less expensive to put a CM combo together, but that was the whole idea behind the concept, which attracted a lot of racers. Nontheless, it is not "easy" as the same basic rules apply, there are indexes and one still has to drive competively. The new factory cars negate the soft index or HP arguments.