Need help finding rules.

[John Kelley]

Originally Posted by Michael Beard

SS/PAA through SS/PJA are for automatic transmissions, and SS/PAA through SS/PJA are stick cars. "-1" is for 4bbl carbs, and "-2" is for 2bbl carbs..

Shouldn't stick cars be SS/PA.......as this shows SS/PAA in both automatic & stick

How do you figure out how to classify a Crate Motored Stocker ? Do you use Stock shipping weight and advertised HP of the crate engine ??

[X-TECH MAN]

Originally Posted by John Kelley

Shouldn't stick cars be SS/PA.......as this shows SS/PAA in both automatic & stick

How do you figure out how to classify a Crate Motored Stocker ? Do you use Stock shipping weight and advertised HP of the crate engine ??

Yes mostly although some crate engines have been factored or de-rated over the years. You need to call a current IHRA tech offical or the IHRA main office to get the latest factor. Ive been away from it for over 8 years. Then its just as regular stock is classified as going to the next class up or down and figuring the min. wt and adding 170 lbs for the driver. Same deal as NHRA stock. Yes the stick classes loose the extra "A" on the class designation.

[Michael Beard]

Originally Posted by John Kelley

Shouldn't stick cars be SS/PA.......as this shows SS/PAA in both automatic & stick

Sorry, cut'n'paste typo... stick is SS/PA-# through SS/PJ-#

Re: Crate Motors..... shipping weight of the 'traditional' Stocker (small blocks use small block shipping weight, big blocks use big block shipping weight), divided by the factored HP of the crate motor. http://www.ihra.com/competition/crate_motors.php