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11-02-2014, 12:39 PM | #131 | |
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Re: 2015 Rules
Quote:
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." Last edited by SSDiv6; 11-03-2014 at 10:27 AM. |
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11-02-2014, 01:03 PM | #132 |
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Re: 2015 Rules
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 Last edited by Bob Lasko; 11-02-2014 at 09:05 PM. |
11-02-2014, 03:19 PM | #133 | |
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Re: 2015 Rules
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11-02-2014, 08:47 PM | #134 |
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Re: 2015 Rules
Bruce told me directly the two part numbers I dont have the numbers here at home, but I looked them up right away and one was the existing Dart 180 cc currently legal in the traditional classes, the other IS the 230cc/49cc Dart previously mentioned, Those are the only two on the list as of my conversation with Bruce.
Regarding Mr Bogner's comment about cracking, I agree, if your heads are cracking then maybe you just went to far? I have two sets of N heads that have cracked ironically across the exhaust face from the head bolt bosses, wrote it off as just bad castings. Manned up and built another set.
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VENICE PERNO SS/CS 3041 NHRA SUPERSTOCK |
11-03-2014, 12:18 AM | #135 |
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Re: 2015 Rules
Were there any 'non-Factory Stock' combinations running in the 6.00 to 6.49, 6.50 to 6.99 or 7.00 to 7.49 classes in Stock? If so, where do they fit now?
Do they have to add weight to fit the 7.50-7.99 class or could they run with the FS cars? Or are they ineligible to race now? (Reference pg 29 of the 2014-2015 amendment.) |
11-03-2014, 12:21 AM | #136 |
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Re: 2015 Rules
Am I reading the rules revision right ??? It looks like chassis certification won't be enforced every 3 years ???
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Joe Franco SS176 |
11-03-2014, 10:53 AM | #137 |
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Re: 2015 Rules
It's unchanged. They just moved it to General Regulations.
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Michael Beard - NHRA/IHRA 3216 S/SS |
11-03-2014, 12:03 PM | #138 | |
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Re: 2015 Rules
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Last edited by Travis Miller; 11-03-2014 at 12:06 PM. |
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11-03-2014, 12:35 PM | #139 | |
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Re: 2015 Rules
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From what we have been told, it is still only going to be an "Accepted" list of aftermarket castings. So they have definitely worded this update incorrectly if that is the case. Hopefully they will make a revision on this line item soon for everyone's clarification. Small correction - we ran 9.22 @143 in Belle Rose back in 2009. That's everything we had! SS/CS is a very fun class with some great competition, and I surely hope it maintains it's health. In 2011 David Bogner, James Antonette Jr. and myself all finished in the Top 10 nationally while running CS - it's definitely a well represented class. Mike Mans |
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11-05-2014, 03:09 AM | #140 |
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Re: 2015 Rules
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