IHRA Pure Stock

Robert Swartz · 02-06-2012, 10:43 PM

This is just an inquiry. I've been looking over the rules for this class. If one had an unmolested car, looks like it could be a fun class.

The engine rules look pretty simple, basically the same rules from the early 70's. No trick engine parts. You can run the old style stocker camshafts, no radical ramps. Do Comp or Bullet make these cams?

I notice that you are required to have a driveshaft loop. Can't see where some of the lower class cars would need it but simple enough to fab one up.

I'm a little fuzzy on the open exhaust/header rule. Do you have to run the exhaust thru mufflers? Are you alowed to run open headers, have to retain the exhaust?

If I'm reading the "Weight Adjustment" correctly. You can add or remove weight to go up or down a class, just like regular stock?

Like I said, looking this class over. My partner and I may end up with a car that would be a good candidate for this. Just what I need another project.

02-06-2012, 10:43 PM	#1
Robert Swartz Senior Member Join Date: Aug 2008 Location: Nineveh, Indiana Posts: 512 Likes: 0 Liked 3 Times in 3 Posts	IHRA Pure Stock This is just an inquiry. I've been looking over the rules for this class. If one had an unmolested car, looks like it could be a fun class. The engine rules look pretty simple, basically the same rules from the early 70's. No trick engine parts. You can run the old style stocker camshafts, no radical ramps. Do Comp or Bullet make these cams? I notice that you are required to have a driveshaft loop. Can't see where some of the lower class cars would need it but simple enough to fab one up. I'm a little fuzzy on the open exhaust/header rule. Do you have to run the exhaust thru mufflers? Are you alowed to run open headers, have to retain the exhaust? If I'm reading the "Weight Adjustment" correctly. You can add or remove weight to go up or down a class, just like regular stock? Like I said, looking this class over. My partner and I may end up with a car that would be a good candidate for this. Just what I need another project. __________________ Robert Swartz - Swartz & Lane 66 Chevy II Pro 95 Achieva EF/SA, 78 Mustang II U/SA (work in progress) #354 stock Last edited by Robert Swartz; 02-07-2012 at 04:45 PM.