GM Releases 2013 bogus HP ratings at PRI show

[X-TECH MAN]

Come on guys. Its not the racers fault here no matter what your running. Lets be nicer here. Im trying.....LOL. Its the dumb a@@ NHRA and the manufacturers that have caused all the grieff ! Direct your anger at them. Have them get off their butts and either factor the new stuff correctly or put them in their own class and call it whatever. The early DP's did require a LOT of building. The Fords not so much along with the COPO's. The blowers are a problem as it was in the early Jr. stock days. The blown 57 312 Fords were out running everything for class. Including the 350/255 Chevy's like Bobby Warren's in heads up runs. Its up to NHRA to set things right but it seems they wont listen. It really seems the AHFS isnt working either. There HAS to be a better way.
Merry Christmas to all

[Ed Wright]

If I had any sense I would have built a hood scoop car going in.
None of this crap would have mattered.

[Monte Howard]

So let me get this straight the CNC'ed heads are not allowed, just the ported heads. Really unreal, anyone read the rule book on cylinder heads?
You could still put a set of layers best superstock heads and the best superstock camshaft in my camaro and still not run with the new mustangs in E.

[NewHemi]

Originally Posted by Jim Kaekel

I wasn't aware that Drag Paks, Cobra Jets or COPOS had to be built from the ground-up.

Here is a radical new concept for you:

If you don't know what you are talking about, then stop talking.

Dennis explained it. There was more than a little bit of work in the 2009, and 2010 Challenger Drag Paks. And even the Fords and Copos typically take more than "buy and drive" efforts to get to the track.

So, at what race; track and date please, were you so unfairly beaten by one of those combinations that upsets you this badly that you need to make personal attacks on other racers?

Or are you just on a mission to make the world fair?

David
The New Hemi Guy

[Andrew Hill]

Originally Posted by Andrew Hill

Here's all 3 listed with flow numbers
http://www.thefordsource.com/store/p...-6049-Z304.pdf

"Intake port volume as cast: 204 cc"
"Exhaust port volume as cast 85 cc"

In the Stock/Super Stock Cylinder Heads Volume list, both Z304D and Z304DA are listed with:
Intake CC's Max: 230
Exhaust CC's Max: 91

All have CNC'd combustion chambers, M-6049-Z304P has CNC ports as well.

Also, the engine blueprint guide has a 56 cc combustion chamber, while a 63 cc one is listed in the specs. What's the deal with that?

How can I go about getting an extra 26 cc's on the intake and 6 on the exhaust approved?

So does anyone have any answers for this? Where did the extra cc's come from if they're not ported?

[art leong]

Originally Posted by Andrew Hill

So does anyone have any answers for this? Where did the extra cc's come from if they're not ported?

The same place they come from on all the other "stocker" heads?

[Ken Miele]

Andrew,

With all do respect, most head volumes listed by NHRA do not hold the factory volumes. The head was submitted and pored, just like many other heads.

I am not sure why you think the head specs listed by Ford Racing in their parts catalog has any relevance with what NHRA has posted. They also list flow number, but we all know they follow much better.

[TILBURG]

Ken,
Didnt they just come w/ a built in safety factor from the factory? LOL. It's all about safety these days. When did you guys ever see a 993 head from the factory that was even close to 63.3 on the chamber?

[boster]

Andrew buy Ford Racing part and all your problems will be solved . You will get the extra CC"s you request


Merry Christmas

[Ken Miele]

Brian,

Safety first as always, your funny bud. I thought it was pretty much common knowledge about the so called factory numbers and NHRA's posted numbers, but I could be wrong.