Cylinder Heads.

easygoingjuan · **Joined:** Sat Aug 22, 2009 10:45 pm **Posts:** 231

Good morning everyone, I was reading through the posts and the same thought kept coming to mind. It's as if someone folks are intentionally looking for wiggle room in the rules with the wrong intentions. The rules should be used as a platform to guide the racer on how to build a car that is legal to race and HAVE FUN! Pick a car you like, plan a build, ask questions, and do the best you can within your allowed budget. I guess what I'm trying to say is if it's a car you like what the difference if you run a 12.50 vs. a 12.30??? It's just for fun right??? If you can't afford a certain set of heads then sell what you have and buy a different set within your budget or save some money and buy what's correct...it's worth it if you're just trying to have fun! Let's all be honest with ourselves...we know what offers performance gains and what doesn't.

Let's keep the true spirit in mind, which is to have fun!

Juan

GeeTeeX · **Joined:** Tue Feb 09, 2010 11:40 pm **Posts:** 162

Right on target Juan. I had a great time last year getting back to racing. What i like about this series is that anyone can contend. Just show up and make the races. John, our current champ, did just that. He wasn't the fastest all the time but made small changes within the rules and was deadly consistent. Sounds like any current NHRA champ to me. I even managed to finish in the prizes and thoroughly enjoyed myself trying to beat my own personal bests. Hopefully the next two weeks goes fast. See everyon then.

furrystump · **Joined:** Mon Nov 02, 2009 8:28 pm **Posts:** 1552

With the discussion about open camber vs. closed camber I just reread this and there was a great deal of thoughtful ideas, With the longevity issues some people are having I thought I would ask a question.

Is longevity a performance advantage when it comes to approving a replacement cylinder head casting? Two castings with the same obtainable performance level/appearance,but one survives and one doesn't. :pop

Ted Daros · **Posted:** Mon Apr 29, 2013 2:13 pm

I say its not! Or if it is, afford it to all marques equally as possible!

furrystump · **Joined:** Mon Nov 02, 2009 8:28 pm **Posts:** 1552

I was in bed last night and I thought Ok I know its a stretch and I know it's legal to change the crank, but if I have a 1974 duster with a 360 with a cast crank,"the only crank available" and you can tell the difference by the harmonic balancer, so it's visible from the outside of the engine, that crank limits the amount of power I can reliably produce,

To change from cast to forged crank is for two possible reasons, change in stroke and longevity, but is incorrect/visible for the car above.

My point is I don't think I agree that all other things being equal that longevity is a performance gain. If you can make the original casting perform as well as the repro/new casting, I think it should be allowed, as long as you can't tell from the outside. Good castings for a bunch of combinations/cars are going to become more and more scarce. A bodys for everyone! The diversity of the cars is one of the things that make the series great. :pop

1972LS5Chevelle · **Posted:** Wed May 01, 2013 10:19 am

Question Rhett, could one have a steel crank balanced so that it could use the other type of balancer? Thus keeping the correct outward appearance?

RalphsRapidTransit · **Posted:** Wed May 01, 2013 10:29 am

1972LS5Chevelle wrote:

Question Rhett, could one have a steel crank balanced so that it could use the other type of balancer? Thus keeping the correct outward appearance?

You could but not required.

old fart racing · **Joined:** Thu Sep 04, 2008 3:57 pm **Posts:** 849

Wait: Does not rule 2.08 state that you can run an aftermarket balancer anyway?

RalphsRapidTransit · **Posted:** Tue Aug 27, 2013 12:31 pm

old fart racing wrote:

Wait: Does not rule 2.08 state that you can run an aftermarket balancer anyway?

correct

EddieSpaghetti · **Posted:** Fri Oct 18, 2013 3:29 pm

Hey guys, I was looking through this thread and thought the topic raised a lot of interesting questions. There's a great on-line resource I'd found awhile back that has the flow numbers for many of the popular castings for virtually every manufacturer. It also has ported stock and aftermarket head flow numbers. Maybe this would be helpful?

http://users.erols.com/srweiss/tablehdc.htm

Cheers,

Edward McMahon
aka EddieSpaghetti

RalphsRapidTransit · **Posted:** Fri Oct 18, 2013 4:39 pm

EddieSpaghetti wrote:

Hey guys, I was looking through this thread and thought the topic raised a lot of interesting questions. There's a great on-line resource I'd found awhile back that has the flow numbers for many of the popular castings for virtually every manufacturer. It also has ported stock and aftermarket head flow numbers. Maybe this would be helpful?

http://users.erols.com/srweiss/tablehdc.htm

Cheers,

Edward McMahon
aka EddieSpaghetti

Thanks for the link. I have a surprise for you Ed :bow

Yup that was your old baby from 23yrs ago.

EddieSpaghetti · **Posted:** Fri Oct 18, 2013 6:58 pm

Wow! Same owner? If so, I can't believe he's had it all this time. Looking good!

RalphsRapidTransit · **Posted:** Fri Oct 18, 2013 7:44 pm

Yup, Dennis still owns your old Dart. We are almost ready to go racing. Next year the hood goes away for the stock hood and redlines replace the radials. SuperCar Racing will be the next chapter for your old Dart.

EddieSpaghetti · **Posted:** Sat Oct 19, 2013 8:51 am

Excellent. I also have something in the works, but I'm a little ways off. I've just completed another project (92 Mustang LX Notchback) but now it's time to do a Supercar! I'll post pics of the new toys soon. :drive

paulyc · **Joined:** Mon Oct 21, 2013 11:25 am **Posts:** 3

FASTLane wrote:

You Bowtie guys can't be serious. You already have an advantage with aluminum heads, and you want better heads? If you choose to run them, then its your choice to spend the money to have them welded to live. I have spent more than $6000.00 on one pair of iron scj heads and now there junk. I'm on my second set and thats my choice. If the aluminum is cost prohibative, then build an iron head motor. If your choosen combo is a one year only head, choose a new combo or live with what you have. It sounds to me like your not happy with your chosen performance advantage and you want more. If Supercars chooses to modify the current rules to assist one group of racers, then the series looses some of its integrity. If you want to modify the rules to allow non correct heads, then why is the tire tread rule soooo important??? Either the cars are correct or their not. If you want to allow the aluminum heads, then I expect you will allow every car to run aluminum heads. Everyone should get the same advantage! A cnc can make any head appear correct externally.

Says the guy with a 100 cube advantage... 590 vs 496 or 511

Cylinder Heads.

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