roller rockers
 

It seems like a lot of racers don't want roller rockers (myself included). Write NHRA, tell them and while you're at it, suggest a max valve spring pressure (say, 300-350lbs open) . No more rocker arm issues, lifter problems, pushrod flexing, more square lobes (no advantage without additional pressure) , rpm range kept "reasonable", etc. It has worked before (mufflers). Ron.

Re: roller rockers
 

Ron, You are partly correct. Not all racers wanted roller rockers. The ones that really wanted them are the ones who chose to race a combination that has a poor valve train set up. They kept bending the ear of select officials until......well you see what we now have.

Unlike roller rockers, the muffler issue never became a rule. Once a rule is printed, manufacturers fill their bins and racers spend cash on parts, it is hard to get a ruling reversed.

Speaking of roller rockers in Stock now being allowed...why would anyone think that any ratio other than stock would be allowed? Be ready to have the ratio checked in a teardown.

Re: roller rockers
 

It is my understanding stock racers will not be forced to use roller rockers. I.H.R.A has allowed Roller Rockers for years before N.H.R.A. This issue is simple to resolve. If you do not like the new rule, just use what you have been using, it is just that simple.

I for one will use the roller rockers. Not because of a performance davantage, i will use them because of a reliability factor and for no other reason.

Re: roller rockers
 

Roller rockers will only cause more breakage and oil downs, ( then will come a diaper rule). I am not in favor of the rule change, wish the money hungry bunch in Glendora would leave well enough alone.

How about a rule that would help the life of this sport? Something that would allow the next generation to enjoy drag racing.
Something that would keep the neighbors happy and make the tree huggers smile.

Put mufflers on your car and save a drag strip, maybe that would have saved my local track.

Re: roller rockers
 

So true Charlie !
So many tracks are getting shut down by the noise complainers.
It's 100 times easier to shut a track down than to open one up.

I run mufflers on all my cars, regardless of how much power they make. There's actually mufflers out there now that will help make more power with certain combos.

Re: roller rockers
 

IHRA also allows after market intakes and carbs on their cars,HMMMMMMMMMMMM maybe that is coming next to the new class "stock appearing" We have stockers with 14 inch hi intakes,carbon fibre parts etc.Why stop their,think of the aftermarket and how it could drive the economy

Kevin

Re: roller rockers
 

IHRA only allows readily available and unmodified aftermarket intakes and certain unmodified Holley carbs with choke plates on approved Crate Motor combinations. Not all factory crate engines have intakes and most, if not all, don't have carbs. Aside from that, they have blueprint specs to follow just like "regular" Stockers.

The new factory race cars are a totally different situation, which, ironically, are even further from "Stock" than any IHRA Crate Motor combo!

Re: roller rockers
 

Also, the "regular" IHRA Stockers (non-crate) follow the same rules as the NHRA Stockers with the exception of the 10" tire. They have allowed roller rockers for several years. Jim

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Re: roller rockers
 

Not really true.

NHRA has an accepted rod list where aftermarket rods must meet specifications on the then-current NHRA Stock and Super Stock Replacement Rod Acceptance List.

IHRA says you can run "Super Stock connecting rods in Stock Eliminator."

They really don't provide any specifications to go by for rods or pistons.

Re: roller rockers
 

Interesting. My answer to questions such as that has always been "if not IHRA specified use NHRA spec". Jim

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Re: roller rockers
 

Yes because a Drag Strip right next to the Train Tracks that runs non stop is looking to put mufflers on the trains also.... Please thats not why Fontana got shut down it was just a route they were able to use, I dont see the NASCAR track right across the parking lot putting mufflers on, Do not get the muffler Rule going again !!! Please thats a joke if the track wants to implement a muffler rule they can it does not have to be a NHRA rule they do it at Sonoma on Wednesday nights if you dont want to race with mufflers wait till the weekend Summit races. Pretty simple

Re: roller rockers
 

Well Bob, it goes like this....................the neighbor that has them in court sued the railroad for noise and lost. He also had NASCAR in court and it got thrown out. Now its the drag strips turn.
NHRA will not require mufflers. Noise issues are with a track not NHRA. I realize that many "class" racers hate mufflers, I personally love them and I race at Fontana every time the gate opens in brackets or a NHRA race. It is the only track we have in the LA area. If thats what it takes then wear a pair of mufflers...........................or take up some other sport because this one will be history around here.

Re: roller rockers
 

Thank God you don't care, I was very concerned over your approval clutch boy.

Re: roller rockers
 

no matter what anyone does it will never be enough people will complain just get use to it.

Re: roller rockers
 

Well Charlie, Maybe you should re read your original post because it does say maybe a RULE !! to me that sounds like trying to get the muffler rule going again ? but then again maybe you were not around when they went that route and caused a whole bunch of drama. And if im not mistaking there is more than one track within a reasonable driving distance in L.A , Listen we all on the west coast have Track issues and mufflers is not the cure to keep tracks open, its to keep operating costs to a min during economic hard times and NHRA is sucking the life out of the local tracks during times when they should be doing everthing in there power to keep them going. !!
Ask Bakersfield and Sacramento why they dont hold a NHRA race anymore, and now they just add as many non NHRA events to there list they can and they will survive while we suffer with no races we can enjoy with friends and class type cars anymore.

Re: roller rockers
 

how did a question about roller rockers turn into a bitchfest about mufflers?

Re: roller rockers
 

Bob Aceves, check your PM

Re: roller rockers
 

Which company will be the first to offer contingency for the use of there roller rocker? T & D is the only one listed in the Lucas Oil series for rocker arms.

Re: roller rockers
 

Classracer

Kevin

Re: roller rockers
 

Any clarification from PRI. on this issue?

Re: roller rockers
 

Just got back from there. No there has not been a final rule on what is excepted. None of the manufactures knew what the final rule was ALL of them was waiting on Danny Gracia's ruling on the rockers. I think we will know something the next week or so. They did not even have a rule book there. Also the booth was real small and no was was attending it.

Robert

P.S. wait for the COPO!! Testing will happen this week...

Re: roller rockers
 

The print is out but the rulebook is still very broad on the rocker arms.

Re: roller rockers
 

The same way a reprint of a 1955 Wally Parks editorial turned into a dissertation about carb options available for Y-block Fords!

Re: roller rockers
 

What is the final rule on rocker arms, anybody know???

Re: roller rockers
 

It appears to me, the rockers have to be the same configuration as stock ie; a Mopar small (early) and big block must still run the same shaft configuration, but the needle bearing roller tip rockers are allowed, must be same ratio as blueprint specs. I don't think NHRA intent is to allow machining the top of the head for T & D, Jessel, or such. I think the intent is a stud mount must still be a stud mount, a shaft must remain a stock shaft location. Some people will be affected in that the specs might call for a 1.5, and of course there are usually no numbers on the stamped steel or ductile iron(Mopar), and almost all of the aftermarket has the ratio on them. Might affect camshaft etc, and is very easy to look at by Tech Inspectors. That is what got me pitched earlier. Cam checked, but the specs say 1.6 and I had 1.65 and I went home. That's my story and I'm sticking to it.

Re: roller rockers
 

I spoke with Mr. Gracia at PRI and what Jeff posted is pretty much it. He told me he had looked at the Harland Sharp rockers and approved them. Yellow Terra Rockers submitted a set while at the show. Apparently almost any rocker, aluminum, steel, needle bearing, sleeved or whatever kind of roller tip is ok as long as it will directly replace the stock rocker with no machining and check at stock ratio spec. MoPars must use and fit stock shafts for example. Jim

Re: roller rockers
 

Thanks Jim!

Re: roller rockers
 

Bought mine from Comp Cams today!

Re: roller rockers
 

Wow. My stuff just became fully obsolete. And it hasn't seen the track yet...yay. Keep it up, guys.

Re: roller rockers
 

x2

Re: roller rockers
 

If it isn't a 2010 or later model car the whole thing was obsolete anyway. Still capable of having a lot of fun and even getting a Wally though.

Re: roller rockers
 

Who's rockers will pay ?
When IHRA did this Harland Sharp came on to pay....

Re: roller rockers
 

Why obsolete? You don't have to run the things. Whatever you had is still ok. And some 1.6 unstamped rockers might be better than 1.5 alm stamped, or change the cam.

Re: roller rockers
 

Now that's funny right there!!! Jim

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Re: roller rockers
 

Clarified rule to be posted as early as next week. Well, what they call a "rule". :rolleyes:

Re: roller rockers
 

Thanks Alan

Re: roller rockers
 

I spoke with NHRA on thursday pretty much alum roller rockers are ok. You need to stick with oem config i.e. small block chevy stud rockers remain so I never even asked about the ratio I am sure that also remains stock.

Re: roller rockers
 

We're currently working with Harland Sharp with the Gen III Hemi roller rockers. With the new NHRA approved 1.65 RR and our NHRA approved rocker ties, should make a for good combo, course Harland Sharp will have to submit the package to NHRA for approval.

Re: roller rockers
 

NHRA has not issued any rule clarification, as of today. I would not suggest to anyone that they buy anything until NHRA produces a clearly written rule. One thing every racer should learn about NHRA rules: Get it in writing from Glendora if you want to be sure it is legal.

Re: roller rockers
 

Amen!!!!!!!!!!!!