CLASS RACER FORUM

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- Stock and Super Stock (https://classracer.com/classforum/forumdisplay.php?f=3)

- - stockers (https://classracer.com/classforum/showthread.php?t=77527)

Quote:

Originally Posted by SSDiv6 (Post 625533)

Anyone that has access to a laser engraver, can replicate the logo and part number on a piston.

I do not know if this was the situation, nevertheless I have personally seen a CP piston on an engine I took apart that had the approved part number, however, it had thin rings and the ring lands had been moved higher.

And no, in consideration of the car owner, who purchased the car from another racer with this engine and was extremely mad when I showed him, I will not post the pictures of the piston. However, a few members of this site have seen the pictures of the illegal piston and not surprised when I mentioned the name of the person that built the engine.

The matter was addressed with Snake Calvert at CP and he is investigating the matter internally to see if the pistons were shipped this way or if they were laser etched by someone else. By the way, the engine was reassembled with legal pistons. As a well known and respected engine builder shared with me, he was told by NHRA that he is one of the few engine builders that his pistons meet the spec.

CP is not the only one.

I wonder with the pushing of limits in Stock and the difficulty with tech inspections, would NHRA ever fold Stock into Super Stock?

Quote:

Originally Posted by L.Fite (Post 625578)

So... while we are talking legal/illegal...
How is a head with 118cc combustion chamber a replacement for a combo with 103cc chamber?...
Oh and bigger intake valves too...
Wanting to build a motor but, very confused as to how all this works...
Would build an iron head but castings cost as much as aftermarket aluminum...
So not seeing a lot of advantage other than moving weight...
Maybe should be in tech, but seemed to fit the thread.
Seems to be a lot of gray... or maybe I'm just not too smart...

You are speaking in code. You should probably put this post in the tech forum, tell us what combo you are contemplating building, and ask these questions.
It really doesn't fit the thread, the topic is about people claiming the class is filled with cheaters. Which I don't agree with. An approved head by NHRA is not what this topic is about. Does your combo which allows an aluminum head carry more hp?
Again, move this post to the tech forum and you will probably get answers.

I put that out there because I was told this by a very reliable and knowledgeable source, if it's untrue thanks for clearing it up. My sincere apology to CP Pistons and this entire forum. I also deleted my original post.

Quote:

Originally Posted by 1347 (Post 625581)

No code... just a general question...
It does fit as an example of the grayness I see in the rules...
Sometimes it is so confusing especially with the approved replacement stuff.

I'll go sit in the truck... can I change the station on the radio? :rolleyes:

Quote:

Originally Posted by L.Fite (Post 625653)

What is the combo you are questioning? And what is the replacement head that you are allowed to run? The "code" part is that you are vaguely asking about an approved replacement head without even talking the specifics.

I think all aluminum replacement heads for the OEM heads carried a 5 Hp. penalty to start with.

I have had the only car with my combination since 1996 that has stayed in current competition. There was at least one other that was built and raced. Said racer was told not to accept our help cause we were cheating and would not give them good information. Said racer also sold car after not being able to get the car to go any faster and moved on.

In the last few years, another racer is running a similar combination to mine, but it has a different HP rating. YET every single aspect of the parts in numerics are the same. From head casting, to throttle body, to piston size. HP rating difference from one car to the other is 50 factory HP!!!!!!!! No clue what their car weighs compared to mine, and really doesnt matter. We both are doing our own thing. Ironically, we run about the same. A pair of one off combinations, even though every aspect of the motors are identical. If one of us had something funny going on, Im sure the barn would tell the tale very quickly. Many years ago, my stuff was used for measurements cause I was the only game around.

You take a 305 chebbie, where everyone has on in Stock eliminator............ and it fits how many different cars with how many different castings to mix and match............Id say its a whole lot less easy to find someone who is doing something completely out of whack.

Or like earlier said Duster who has been MIA now. Class racing with a big inch bracket motor and getting whacked............. Yeah, we dont like that. Mistakes are one thing........ Like a well known Hemi racer installing the wrong motor for Indy and wondering why he was slower than the other AA cars at the time........... blew it up and found out what motor was in the car............ Didnt like 0wt oil....... OOPS. He laughed and left the track with a short suspension from what I recall....

But then again, a 9" radial is still not legal, right?

Quote:

Originally Posted by Capri (Post 625704)

When did that all happen ?