big base circle cam in stock elem.

[Pedigo Perf]

Originally Posted by Jim Hanig

How can they change their mind now I thought this was a done deal a year ago.. Not that they will ck for it any way.

Trust me, they definately do check for it. And pulling the cam out is apparently necessary to measure it. Not much fun, and hard on the tennis elbow when your balancer is as tight as mine is. Fortunately I had a stock size cam bore but I had intended to go with a 55mm but just didn't get it done in time.

I have an email indicating the large core cam is ok as long as you aren't using roller cam bearings. I will try to find it and post it if I can.

Tracy

[Jim Hanig]

Originally Posted by Pedigo Perf

Trust me, they definately do check for it. And pulling the cam out is apparently necessary to measure it. Not much fun, and hard on the tennis elbow when your balancer is as tight as mine is. Fortunately I had a stock size cam bore but I had intended to go with a 55mm but just didn't get it done in time.

I have an email indicating the large core cam is ok as long as you aren't using roller cam bearings. I will try to find it and post it if I can.

Tracy

Granted they did ck yours how many more have they cked ?

[Bill Diehl]

So what's the verdict here? Roller cam bearings? 60mm tunnel? offset lifters? Lifter dia?


lot of grey area to sort thru

[Bruce Noland]

Originally Posted by Bill Diehl

So what's the verdict here? Roller cam bearings? 60mm tunnel? offset lifters? Lifter dia?


lot of grey area to sort thru

60 mm tunnel, offset lifters, lifter diameter. What are you talking about? You went back 9 months for this? Do you race Stock or Super Stock?

[Adger Smith]

To quote Bobby " If it's not in the rule book it cannot be enforced. If that was the case they could make up any rule they wanted to and bounce someone just because they wanted to."
Dwight hit the nail on the head.
But you guys have forgotten about "The other Rule Book"
We may not be able to read it because "They Have It" It is called the " NHRA TECHNICAL POLICIES & PROCEDURES" manual. That is where the real rules that the Tech Dept follows are written. It pin points area like what is being discussed. Every Div Tech director should have one, somewhere & there should be one at every NHRA race. Between the "Rule Book" we get and their TECHNICAL POLICIES & PROCEDURES there should be no problem being consistent with rules.
BTY: This is the same manual that the AHFS rules and procedures are listed in.

[Bill Diehl]

Originally Posted by Bruce Noland

60 mm tunnel, offset lifters, lifter diameter. What are you talking about? You went back 9 months for this? Do you race Stock or Super Stock?

You will see me this year


C/S and D/S Boss 351 Ford

[Pedigo Perf]

Originally Posted by Bill Diehl

You will see me this year


C/S and D/S Boss 351 Ford

Only 8 days left, better hope for good WEATHER.

[JHeath]

Originally Posted by Bill Diehl

You will see me this year


C/S and D/S Boss 351 Ford

I can hardly wait.

[TILBURG]

Originally Posted by Bill Diehl

So what's the verdict here? Roller cam bearings? 60mm tunnel? offset lifters? Lifter dia?


lot of grey area to sort thru

Offset lifters? In a flat tappet BOY that will keep you busy.LOL

[Bill Diehl]

Originally Posted by TILBURG

Offset lifters? In a flat tappet BOY that will keep you busy.LOL

Bushings at the proper phasing angle. If you where building a record setting canted valve engine you would know that already.

Who says you can't offset the bushing fore or aft? And place the lobe where it needs to be. This is a high end tool steel cam and lifters

And for the guys that are going to jump all over me for moving the bushings to where they need to be......they been offset boring cylinder bores for years, what's the difference?