2015 Rules

[Marty Buth]

Will the FS cars have a combo of their own, when only 1 car is entered in a particular class? Or will they be in the combo for the "older" cars?

[Ed Wright]

Nick, the only people complaining (and not being straight about why they are unhappy) have new cars and don't like suddenly not being one of the fast guys in their classes. If NHRA doesn't lower their indexes about half a second they will still dominate the top of qualifying sheets if they want to. Would still be killers in class combo races. Of course, it's not a big deal to guys running lower classes where they didn't have to deal with them heads up. Most people are happy.

[Nick Heath]

Originally Posted by Ed Wright

Nick, the only people complaining (and not being straight about why they are unhappy) have new cars and don't like suddenly not being one of the fast guys in their classes. If NHRA doesn't lower their indexes about half a second they will still dominate the top of qualifying sheets if they want to. Would still be killers in class combo races. Of course, it's not a big deal to guys running lower classes where they didn't have to deal with them heads up. Most people are happy.

Fair enough, Ed. After seeing all the comments over the years about how "everything would be fine if the new cars were in their own classes," I was just surprised to see a fair amount of grumbling in this thread. I agree that the FS indexes will need adjustment, maybe the 0.30 that NHRA gave back originally?

[Marlin Bogner]

Oct 31 was the first that I heard of the SS/CS head problem. but what problem? I feel that GM, Ford and Mopar were very even with GM having the slight edge. We all Crack heads. I have had to back out of CFM for reliability, Why can't GM? We are using the basic W-2 head which came out 40 plus years ago. there is nothing else. Again, GM racers get there way. How many Ford racers knew what was going on? I thought we had the class back on course when we stopped the GM racers wanting the aluminum heads.

[SSDiv6]

Originally Posted by Marlin Bogner

Oct 31 was the first that I heard of the SS/CS head problem. but what problem? I feel that GM, Ford and Mopar were very even with GM having the slight edge. We all Crack heads. I have had to back out of CFM for reliability, Why can't GM? We are using the basic W-2 head which came out 40 plus years ago. there is nothing else. Again, GM racers get there way. How many Ford racers knew what was going on? I thought we had the class back on course when we stopped the GM racers wanting the aluminum heads.

Marlin, I was building a Ford Mustang to run SS/CS. I learned about it from my cylinder head guy on November 2013. He was already building a set of GM LS cast iron heads for a customer to run in SS/CS. I also posted about this issue earlier this year on 01/14/2014. You can read about it in Page 4 of the link shown below.

http://classracer.com/classforum/sho...+degree&page=4

I called Pat in Glendora and informed him the LS cast iron head is a truck cylinder head only available for a few years. He told me that as long it was an inline cylinder head an had an OEM part number, it was legal.

Also called Bruce and he confirmed the upcoming allowance of cast iron aftermarket cylinder heads in the class. I made him aware of the 14 degree cast iron GM head, same as used in Nostalgia dragster and he did not comment.

The Chevy Bowtie cylinder heads are available in 3 different volume sizes. racers are using the larger volume size. The cylinder head is used in many circle track classes and this is the first time I hear about cracking issues. My own cylinder head guy says it is just an excuse to justify the use of aftermarket heads by GM racers.

As I read the current proposed rule, if what Venice stated there are only specific heads allowed. Currently the amendment says: "Aftermarket iron heads permitted in CS. If they intend to only have specific cylinder heads, then I believe the rule must have language such as: "Only NHRA accepted aftermarket iron heads permitted."

[Bob Lasko]

At this time do we know if more than the Dart head is available permitted by NHRA???
Also heard that the dart head do "not" make any more power than the GM heads, they are thicker and probably will not crack after porting. My head only cracked on the external part of the head above head bolts. Told because the head surface had to much angle milled.

Being one of the longest CS drivers, what ever after market company gets approved, the head for GM should remain 23 degrees. Would save some money in combinations, Intake and maybe pistons. Back when the class was created it was for what was available at the time(cast iron) in the 70's, modified eliminator days. For GM it was the 23 degree heads, I believe the turbo heads. MY opinion only.

Bob Lasko
1134
SS/CS

[SSDiv6]

Originally Posted by Bob Lasko

At this time do we know if more than the Dart head is available permitted by NHRA???
Also head that the dart head do "not" make any more power than the GM heads, they are thicker and probably will not crack after porting. My head only cracked on the external part of the head above head bolts. Told because the head surface had to much angle milled.

Being one of the longest CS drivers, what ever after market company gets approved, the head for GM should remain 23 degrees. Would save some money in combinations, Intake and maybe pistons. Back when the class was created it was for what was available at the time(cast iron) in the 70's, modified eliminator days. For GM it was the 23 degree heads, I believe the turbo heads. MY opinion only.

Bob Lasko
1134
SS/CS

Dart offers a 23 degree Iron Eagle Platinum 230cc Intake runner cast iron head with a 49cc chamber flowing 308 CFM's out of the box. World Products offers the Motown 23 degree cast iron head with a 220cc Intake runner. Let's not forget that there are still some of the RHS/Pro Topline, 23 degree cast iron heads out there with as cast, 245cc intake runners too.