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#41 |
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I thought the rule was and is “Any rocker arm permitted.” ?
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#42 | |
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Location: Avon, Indiana
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Even then it could be different the next time you go through tech.
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Scott Wilcox 2193 3x National Champion SS/A, SS/B, SS/K, SS/L, SS/AM, A/SM, C/SM, B/A, C/A, G/A, H/A |
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#43 |
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Until it is fully clarified and there is some sort of a list I would wait to make a purchase. The rule as it is, is too vague. Jim
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. ![]() |
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#44 |
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Join Date: Mar 2003
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I talked to Tim Cole yesterday and the understanding is stock configeration, stock ratio. there will no shaft style rockers for BB/SB. Ford, Chyrsler, AMC if they came with shfts you can run the shaft system.
Dirk Olson 5036 B/S
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Dirk Olson 5036 STK |
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#45 | |
Veteran Member
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. ![]() |
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#46 |
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Join Date: Dec 2011
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Their must be a goal when NHRA change the rules,,, and i think that the goal must be like this:
Better easier and less money for the racer. Easier for the tech to do inspections (= less money for NHRA) This goals should alwayes be their , and be the main thing when the change a rule. And in that case the could always explain to us race WHY. So is this goal heir with the rocker arms rule ? The racers : Easier to find ? Less Money ? Better stronger ? The tech : Check ONLEY valve lift as per the rule book with Zero lash.,, thats it = Easier. Stock style rockers ,, Studs for the studs like Chevy and shaft for the shaft , like Mopar, use what ever ration we whant, but it must be Stock valvelift. So for fun,,, look at this rocker arms rule from this GOALS ,,, and see what we came up to. In my world then i think this is a GOOD rule change !! Peter PPM Racing |
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#47 |
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I asked three questions to the NHRA tech depart in California a week of so ago.
Are roller rockers allowed = YES What ratio = THE RATIO ON THE/YOUR BLUE PRINT SPEC Are aluminum rockers allowed = YES These questions were,of course,for stock elim. |
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#48 |
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Consider this guys; the ratio on most aftermarkets is stamped on them, and if it doesn't match the specs, it probably won't pass even if the cam passes. And it don't seem so complicated to me; if you got shaft rockers like mopar, don't change the shafts, just the rockers: Studs, keep the configuration, don't machine the head for small shafts etc, And if your unmarked rockers are 1.6 and the spec calls for 1.5, don't be surprised if you need to replace your cam for the 1.5. Basic math (I think). I don't see nothing sinister here. However I'm sure someone will show me the error of my ways; but I'm used to it cause I been married 46 years.
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Jeff Teuton 4022 STK |
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#49 |
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Join Date: Mar 2003
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My understanding is that NHRA is building jigs to check ratios.
Dirk
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Dirk Olson 5036 STK |
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#50 | |
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Somehow I doubt that. They'd need one jig for each engine produced and legal for Stock Eliminator. They'd need at least 7 copies of each jig, one for each division. That's at a bare minimum. An accepted rocker list is much more likely. Especially since a jig that fits one brand of 1.5:1 rocker arm for a small block Chevy may or may not fit another brand. And that is just one engine of dozens.
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Alan Roehrich 212A G/S |
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