Roller Cams in Stock Eliminator?

[Rick Leininger Jr.]

Originally Posted by Bernie Cunningham

I would like to bring this back up as it's got to be relevant.
Does anybody know what the, before roller, spring pressures were on a Nascar CUP car?

100 lbs. on the seat, 500 lbs. over the nose, loft enabled valve motion and hp similar to what a roller profile would provide.

Not all the 396 375 guys are blowing up
their stuff. Sounds like the ones that are having problems should go see the engine builders of the ones that are not. Or back
The rpm down below 8300 or whatever they are trying to turn them too. Changing cam profile will help valvetrain failure.

I've heard of places that will run a cam and lifters on a special machine that breaks in the lifters to a new cam. Maybe that's an option, even before you run it in an expensive engine. Just a thought. If the parts are broken in properly the tool steel lifters are supposedly very reliable.

I keep beating a dead horse with this suggestion, but go and test some valvetrain parts on a Spintron.

Instead of lobbying for parts to cover up for a lack of understanding of what is going on in your engines valvetrain wise, try to do some research and talk to people that figure things out.

If you live close to Pa go see Ray and Dave Barton. They have a Spintron machine and have worked on all kinds of engine combos. I'm sure they would be able to fix the problems you are having.

Or

Lane Line, Brian Tilburg, Steve Ficcaci, and Darrel Weikle are some guys that build
Very fast and reliable 396 engines that last and win races. Save your money and go see any of the above people.

[GarysZ24]

Originally Posted by Tom keedle

just a thought but, how about extrude honing those manifolds?

That could be good, I'll have to look into that ideal...after all, the rule book doesn't say that doing that is illegal, but I hope Billy Nees, or someone else here will let me know if it is legal or not? Since headers, wheelie bars, and the manual transmission shifters that allow a stick car to be shifted like a manually shifted automatic are legal, it should be! However, it's still a great ideal....thanks Tom.

No problem James, I'm good for now with my factory manifolds, and the only track it might matter not having them on is in Denver, but the way my car ran in Salt Lake City last year, I should be able to at least run the index up there, so I should be okay there too....

[Bill Harris]

Originally Posted by Billy Nees

the 396/375 combo is the LEAST "Stock" combo out there. You've gotten everything that you've needed over the years to make it faster and more dependable(and let's not forget the "easier to get parts for and less expensive" B.S.) and you just keep on wanting more!

Billy hit that nail on the head. Just look at the NHRA approved aftermarket parts listing for the BBC. You could build an entire "Stock" legal A/S '69 Camaro powertrain from the water pump to the rear diff pinion without using a SINGLE item manufactured by GM, much less something made in 1969. Try it, name ONE item in a stick-shift '69 396/375 powertrain that MUST be OEM stock from 1969 for the combo to be legal.

[Run to Rund]

OK, different cams have different lifts, so the springs could be something like 170 lb. seat, and 400 lb. at some average lift, like .475. As another example of "non-stock stockers" besides the 396, look at the Z28 running 9000 rpm in stock, killing every other combination for D/S.

[Terry Cain]

Originally Posted by Mark Yacavone

Maybe so CB, but maybe for not such a good reason.

I have a friend who no longer posts here, who proposed $200 solid lifters for Stock, years ago. Not much interest there, at that time.
But, now we have $800 ceramic bottom lifters, $400 tool steel ones, all with only .015 thou travel, which are completely legal.
Plus now I'm told you need the ceramic ones to break in the tool steel ones..
Makes you wonder who thinks these rules up sometimes.

Look again. Tool Steels are $2000 plus. About time we reconsider since less than 30 percent of the stockers are now flat tappet motors.

Originally Posted by Terry Cain

Look again. Tool Steels are $2000 plus. About time we reconsider since less than 30 percent of the stockers are now flat tappet motors.

Where did you come up with the 30% of cars use flat tappet cams in stock now? That number seems low.
I have an idea, why don’t we just lobby NHRA to do away with stock and put everybody into super stock? Raise the indexes or some of the slower cars can still dial in for races. That way everybody who wants roller cam’s wins.

[john ancona]

Originally Posted by Todd Hoven

Where did you come up with the 30% of cars use flat tappet cams in stock now? That number seems low.
I have an idea, why don’t we just lobby NHRA to do away with stock and put everybody into super stock? Raise the indexes or some of the slower cars can still dial in for races. That way everybody who wants roller cam’s wins.

As you have repeatedly done in the past you speak as if you are the un-appointed
spokesman for the 1500 plus Stock Eliminator racers ,with your poor scenarios as to anything to be done about the challenges some face in Stock Eliminator ,always quick to jump on anything that is said on here to put down anything said when it comes to a much needed change from a flat tappet cam to a roller cam ,no one wins with a Attitude like yours

I just post my opinion. I don’t agree with the roller cam movement that you and Terry support. Next, I think the 30% number is low for competitors with flat tappet cams.
I just offered a suggestion to help you guys out, that’s all. I never claimed I represented 1500. Id agree with you two, but then all three of us would be wrong. Have a nice day

Originally Posted by john ancona

As you have repeatedly done in the past you speak as if you are the un-appointed
spokesman for the 1500 plus Stock Eliminator racers ,with your poor scenarios as to anything to be done about the challenges some face in Stock Eliminator ,always quick to jump on anything that is said on here to put down anything said when it comes to a much needed change from a flat tappet cam to a roller cam ,no one wins with a Attitude like yours

[john ancona]

Originally Posted by Todd Hoven

I just post my opinion. I don’t agree with the roller cam movement that you and Terry support. Next, I think the 30% number is low for competitors with flat tappet cams.
I just offered a suggestion to help you guys out, that’s all. I never claimed I represented 1500. Id agree with you two, but then all three of us would be wrong. Have a nice day

Suggestions are what is needed for sure ,I am not going to speak for Terry or any others,
I have said in the past on here the reasons as to why a change is needed , for my self I have been racing NHRA for 50 plus years now like many of my friends have, I still seem to be hearing the same story about flattened cams ,and ruined lifters form many
along with engines that have been ruined , so it's not just two of us supporting that something be done