wrong spec submitted by MOPAR

[Pvt Parts]

Originally Posted by Andys dad

The reason for Dave Thomas's DQ this weekend

MOPAR engineering measures the valves differently than NHRA

A new TI sheet is being submitted

He passed tech to set the stock record and we passed tech at Fontana

I don't know - seems to me - you grab a set of veneers and measure it - some things seem simple

Dave told me he has a blue print from MOPAR on how it is measured - sorry us old school guys are just not up to date


Too bad for Dave - no record - loss of travel costs - loss of entry fee - not to mention him being besmirched
(be·smirch: 1.Damage the reputation of (someone or something) in the opinion of others)

Watch out new COPOs it has happend to the other two brands



Ron

Unfortunately, most people don't care about whose fault it was or why it happened. To them "You got bounced in teardown" or worse yet "You got caught cheating"

[Andys dad]

Originally Posted by Pvt Parts

Unfortunately, most people don't care about whose fault it was or why it happened. To them "You got bounced in teardown" or worse yet "You got caught cheating"

Dave was not cheating - It was MOPAR's mistake

It was the head (big end) they were measuring - as I said - how in the f... could MOPAR possibly screw that up or need a blueprint

I am sure I will hear about being so hard on MOPAR - if an engine builder made the same mistake - there would be hell to pay - not just - as one person put it on this thread "***** happens"

Ron

[Jim Wahl]

If memory serves, the same thing happened recently to Charlie Downing. What's with these corporate engineers? Give them a fancy name and they forget the simple stuff? Jim

.

[BlueOval Ralph]

As I remember it happened to Ford a few times
1966 or 1967 427 pistons
1st year of new CJ's pistons
The next year it was something else
Charley Bobs deal
It happens when people don't know how NHRA does things. They don't do everything wright but they do have the final call!

[BlueOval Ralph]

What was the deal with Irv's deal?

[Greg Hill]

A professional stock eliminator engine builder would have measured the valve the right way and in Irvin's case with no number on top of the piston would have called California for clarification. You can't assume these motors are going to be right when you get them.

[art leong]

Originally Posted by Greg Hill

A professional stock eliminator engine builder would have measured the valve the right way and in Irvin's case with no number on top of the piston would have called California for clarification. You can't assume these motors are going to be right when you get them.

Gregg that was the same thing Curt Lashure told me a few years ago after I set a record at Atco. The piston dish was .375 off.
He explained that some aftermarket manufacturers would submit a piston and then build a different piston with the same numbers for a customer.
After listening to the stump speech for what seemed like an eternity. I explained (or tried to for about the 3rd time) that the pistons in question were not stocker pistons. But stock assembly line pistons, that came in ever 2.5 turbo mopar ever built (a couple of million).
When I explained that a .375 difference would make any diesel proud. He looked at me with a bewildered look.
The outcome was they let california make the call. I was not allowed to race that weekend and was never offered a refund. Even though I was totally legal (as per california).
Another go round was when they tossed me for having my pistons to far down the bore.
He told me it could be an advantage allowing more piston to valve. But then told me I could run any thickness head gasket.
I miss Gregg X's common sense.

[Ed Wright]

Originally Posted by Greg Hill

A professional stock eliminator engine builder would have measured the valve the right way and in Irvin's case with no number on top of the piston would have called California for clarification. You can't assume these motors are going to be right when you get them.

And Salty Dog said: Who are their engine builders?

That is who I would be blaming, not MOPAR. Who takes an OEM engine and just runs it? Do that and you deserve what you get. Ever hear of production tolerances? The "engine builder" had to have access to NHRA's specs. Why was everything not measured?

[Andys dad]

Originally Posted by Ed Wright

And Salty Dog said: Who are their engine builders?

That is who I would be blaming, not MOPAR. Who takes an OEM engine and just runs it? Do that and you deserve what you get. Ever hear of production tolerances? The "engine builder" had to have access to NHRA's specs. Why was everything not measured?

Now that was an unexpected response ED

You could hardly call these OEM motors - they are complete "race ready" spec motors from Arrow Racing and two of them had been through NHRA tear down before and passed

I know Arrow built these as good as any engine builder out there - they just did not know MOPAR made a mistake - they used the valve which was identifed to go in the heads - stock size for a Gen IV viper engine - The TI sheet was submitted to NHRA after the engine building started - the valves used were appearently incorrectly measured by MOPAR engineering - used a blue print to figure out how to do it - LMFAO

"this is not your father's Oldsmobile"


Ron

[Hemi Moose]

I was just thinking, does anyone know which Drag Pak Challenger it was...the Hemi or V-10 that got tagged?