Nhra no bigger than stock cam journals
 

http://www.nhraracer.com/content/gen...416&zoneid=132 So does this mean next year they will be checking for these big 55 and 60 mm cam journals.

Re: Nhra no bigger than stock cam journals
 

Probably not.

Re: Nhra no bigger than stock cam journals
 

Check out this older thread, specifically post #23:

http://classracer.com/classforum/sho...nal+cam&page=3

Re: Nhra no bigger than stock cam journals
 

This didn't last long, it has been removed from the site.......

Re: Nhra no bigger than stock cam journals
 

Yeah Mr Derby City, NHRA must have figured 95% of their stocker fields would not be in compliance!...lol

Re: Nhra no bigger than stock cam journals
 

In 2010 Pat Cvengros wrote: The cam shaft may be of the larger journal design. Must use babbitt type cam bearings. Non-roller design.

Based on the above letter, you would think it would be permissible to run a big base circle cam. When considering all the changes to stock NHRA has made today with stocker heads, why would NHRA enforce a stock base circle cam. Pat Cvengros caused plenty of people to utilize the larger base circle cam which I believe would be very costly. A clarification needs to be made so racers know which way to go. The other question is how much could the big base circle cam help. It may not help at all!

Re: Nhra no bigger than stock cam journals
 

But it sure would be an expensive way to find out.

Re: Nhra no bigger than stock cam journals
 

Well, it was pretty stupid to rescind approval, long after the fact, of a relatively expensive modification to a pretty expensive part.

Further, given the other absurd rules for Stock valvetrain, allowing those cam cores helped re-level the playing field that was thrown way out by the other rules.

I'm not necessarily in favor of ANY of those rules, but if you're going to allow some to gain an advantage by opening some rules, you create an artificial advantage. And that's the problem with continually loosening the rules.

Re: Nhra no bigger than stock cam journals
 

delete

Re: Nhra no bigger than stock cam journals
 

The reminder on NHRA for this rule also included larger diameter lifters, which i believe there are more of those then large journal camshafts. Either way there are a lot of blocks out there that would be not usable in stock anymore.

Re: Nhra no bigger than stock cam journals
 

yes I don't think the NHRA letter mentioned anything about lifters that would make a person think that larger is legal!

Re: Nhra no bigger than stock cam journals
 

Cvengros told me 1957 Fords couldn't run stock because Ford didn't send the
specs to NHRA! Guess he never heard of Parham/Payne or Larry Walker.
I wonder where they find these guys?

Ron.

Re: Nhra no bigger than stock cam journals
 

My memory cells are shrinking faster than either the polar ice cap or my hairline at this stage of life but I seem to recall that the specs for all model years prior to 1960 were scrubbed during the Great Purge of 1971. When the prohibition against vintage cars in competition began to ease a few years ago, some but not all manufacturers resubmitted specs for a few models and we now have some examples in Stock Eliminator such as the Tri-Five bowties. Sadly, some of the really strong players from "olden times" such as Hudson, Pontiac, and Oldsmobile no longer existed by that time so they never had a chance to be revived. Either no one asked Ford for help with the blown 312 or Ford simply decided not to play in the revival era because their specs never reappeared.

There have been a few posts in other threads decrying the perfidy of NHRA with regard to aftermarket cylinder head castings and camshaft bearing journals. It's not hard to understand why people would want a stable set of guidelines and a clearly defined planning structure in the organization's decision making but I would submit that this is nothing to become all that agitated about. Until the morning comes when the word goes out that your class, your car/engine combination, or your entire eliminator has been wiped from the books ala Modified, Pro Stock Truck or Stock Eliminator in 1971, you really haven't experienced the worst that NHRA can do.

Suck it up and move on!

c

Re: Nhra no bigger than stock cam journals
 

Parham & Payne were local here. Had to get chased down by that car almost weekly here at Tulsa and OKC. Great guys, fast cars. Blown 312" T Bird eng. Black Fairlane 2dr hard top, then in a yellow 2dr wagon.

Re: Nhra no bigger than stock cam journals
 

I learned a new word ...had to look it up

"Perfidy"....

Chuck you are a wordsmith......

Re: Nhra no bigger than stock cam journals
 

Looks like our work here is about done, Tonto!

Happy New Year, Rich!

c

Re: Nhra no bigger than stock cam journals
 

Yes, he is an outstanding example of an articulate intellectual in all of his communicative pursuits.Makes for fun reading!

Re: Nhra no bigger than stock cam journals
 

I was thinking the same thing.....Thanks Chuck!

Re: Nhra no bigger than stock cam journals
 

I bin sayin dat fur yeers....

Re: Nhra no bigger than stock cam journals
 

Merry Christmas to all my Stocker friends....

I love reading about all the drama that goes on in a category I raced back when dinosaurs still roamed the earth and a number of times after they were wiped out........lol

And it's really never been any different....always some controversy...and it makes it lively.....

Re: Nhra no bigger than stock cam journals
 

Someone, somewhere, has to have an old NHRA book of tech info with the pre 1960 cars and classification guides whereby this old data would be able to be resurrected. Some collector or nostalgia freak needs to step up and offer to provide this stuff for possible resubmission. Anybody out there who does this willing to step up?No perfidy needed or desired here.

Re: Nhra no bigger than stock cam journals
 

How about that historian that operates the RANCH in Whittier ??

Re: Nhra no bigger than stock cam journals
 

Might be a place to start. Actually, there's lots of historians out there.

Re: Nhra no bigger than stock cam journals
 

Greg Reimer and Chuck Norton.......I still have most of the old engine tech sheets from IHRA which are the same as the NHRA tech sheets from the 1970's. I will try to copy any you might want and send them to you if you want. Just let me know. My Phone # is 863-451-6289 and give me your address and I will mail them to you.
Terry Bell

Re: Nhra no bigger than stock cam journals
 

I remember sending the NHRA money and about a month later receiving in the mail a blueprint sheet for the desired vehicle.

It was even on nice paper with the NHRA logo in the background..

Now we have instant gratification..

Or so it seems?

Re: Nhra no bigger than stock cam journals
 

Terry, I had a NHRA black book from '69-'70 that had the engine specs from that era, I sent it to Dwight, you might check with him, he may have scanned by now.


Jimmy Parker

Re: Nhra no bigger than stock cam journals
 

I would like to see a list of '68 - '70 engine specs of a FE 428 / 335 and today's parts. "Just for historical facts" he said with a smile.

And while we are at it look at the '70 - '71 440 / 390 385 engine.

Re: Nhra no bigger than stock cam journals
 

Why stop there?
Probably the closest combo in the guide to being "correct" is your truck.

Re: Nhra no bigger than stock cam journals
 

Seems the original engine specs are out there for the 55-59 cars, how about the car classification guide? I have no interest in building an older car like that, but it would make for fun and interesting reading.