Crate Motor stocker question

Michael Beard · 10-22-2007, 01:43 PM

>> 2. What class would it fit into (I have looked at the IHRA site and can't find the info I need)
>> 3. How much would it have to weigh

Go to the NHRA Classification Guide at http://www.nhra.com/tech_specs/class...ion/index.html and find the shipping weight of your car. ('80 Camaro, 2Dr Coupe = 3397) Take the shipping weight divided by your crate motor factored horsepower from http://www.ihra.com/competition/crate_motors.html (305hp in your case). That (11.13) will give you the car's natural class. Look that up in the IHRA Rulebook and find the class... K/CM = 11.00 to 11.49. So, you can run J, K or L. Multiply bottom of the class factor times factored horsepower, plus 170lbs for driver.

J/CM = 3373
K/CM = 3525
L/CM = 3678

>> 4. What is the index for the class it fits into

http://www.ihra.com/statistics/records/index.html

Hope this helps. Welcome aboard!

10-22-2007, 01:43 PM	#2
Michael Beard VIP Member Join Date: Sep 2002 Location: Columbus, OH Posts: 4,060 Likes: 0 Liked 13 Times in 9 Posts	Re: Crate Motor stocker question >> 2. What class would it fit into (I have looked at the IHRA site and can't find the info I need) >> 3. How much would it have to weigh Go to the NHRA Classification Guide at http://www.nhra.com/tech_specs/class...ion/index.html and find the shipping weight of your car. ('80 Camaro, 2Dr Coupe = 3397) Take the shipping weight divided by your crate motor factored horsepower from http://www.ihra.com/competition/crate_motors.html (305hp in your case). That (11.13) will give you the car's natural class. Look that up in the IHRA Rulebook and find the class... K/CM = 11.00 to 11.49. So, you can run J, K or L. Multiply bottom of the class factor times factored horsepower, plus 170lbs for driver. J/CM = 3373 K/CM = 3525 L/CM = 3678 >> 4. What is the index for the class it fits into http://www.ihra.com/statistics/records/index.html Hope this helps. Welcome aboard! __________________ Michael Beard - NHRA/IHRA 3216 S/SS