2012 Rules Are Posted

Alan Roehrich · 11-22-2011, 05:55 PM

Quote:

Originally Posted by Jim Kaekel

I wonder what will be acceptable for pedestal mount rocker arms like Olds or some Fords?

Paired shafts, like the Harland Sharp offerings, or stud mount conversions.

7423 · 11-22-2011, 06:32 PM

Quote:

Originally Posted by Alan Roehrich

Paired shafts, like the Harland Sharp offerings, or stud mount conversions.

Alan
You mention stud conversions for a small Ford 5.0. IMO, that would take machining the head to accept a stud and milling the pedestal to accept a guide plate, correct??
That would be a no no as I am told............am I wrong and lots of racers have done this and that makes it ok? I would love to go to a screw in stud and a guide plate and toss the dumb azz shims kits in the trash.

Alan Roehrich · 11-22-2011, 06:57 PM

There are stud conversions that do not require machining.

You are allowed to drill and tap for screw in studs anyway.

The question would be, if NHRA requires the OEM configuration, what does NHRA consider the configuration of the Olds and Ford 5.0 to be? It's not a shaft mount, by any stretch. But neither is it a stud mount.

I'd suggest anyone considering making changes wait until at least after the PRI Show next week in Orlando, and what ever you decide, get approval from Glendora in writing, and keep it with the car at all times.

SS Engine Guy · 11-22-2011, 09:40 PM

Aftermarket rockers. And more spring pressure. And nothing about ratios which will work much better with different ramp angles on cams which will require more spring pressure. Speeding up opening and closing intervals. And you can only get so much spring without bigger diameter valve pockets. (next change) Sounds reasonable to me------------In SUPERSTOCK. If you can't make a stock rocker live with the mods allowed you probably should be running in a class that already allows aftermarket rockers. Not screwing up a class that is screwed up enough by all the whining, and aftermarket BS that has already been allowed. As many have stated deregulating spring pressures caused this.

Just what we need, or so I'm told, more classes. I thought the manufacturers wanted less classes? Which is it?

Bernie Cunningham · 11-23-2011, 01:26 AM

Quote:

Originally Posted by SS Engine Guy

Aftermarket rockers. And more spring pressure. And nothing about ratios which will work much better with different ramp angles on cams which will require more spring pressure. Speeding up opening and closing intervals. And you can only get so much spring without bigger diameter valve pockets. (next change) Sounds reasonable to me------------In SUPERSTOCK. If you can't make a stock rocker live with the mods allowed you probably should be running in a class that already allows aftermarket rockers. Not screwing up a class that is screwed up enough by all the whining, and aftermarket BS that has already been allowed. As many have stated deregulating spring pressures caused this.

Just what we need, or so I'm told, more classes. I thought the manufacturers wanted less classes? Which is it?

X2 , where the heck did this come from ????!!!!!!!!!!!!!!!!!!!!

just go ahead and dilute us again cause of a few whinny people (or rich) get there way!!!! sounds like US politics, buggar !!!!!!!!!!!!!!!

Sam Murray · 11-23-2011, 11:32 AM

Quote:

Originally Posted by Bernie Cunningham

X2 , where the heck did this come from ????!!!!!!!!!!!!!!!!!!!!

just go ahead and dilute us again cause of a few whinny people (or rich) get there way!!!! sounds like US politics, buggar !!!!!!!!!!!!!!!

X3 Bernie!!

I hope all the whiners and cry babies are happy!

Stocker 2 · 11-23-2011, 12:33 PM

Quote:

Originally Posted by Sam Murray

X3 Bernie!!

I hope all the whiners and cry babies are happy!

They are! Once again they got their way. To He// with everyone else.

11-22-2011, 06:57 PM	#3
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,105 Likes: 1,564 Liked 1,789 Times in 408 Posts	Re: 2012 Rules Are Posted There are stud conversions that do not require machining. You are allowed to drill and tap for screw in studs anyway. The question would be, if NHRA requires the OEM configuration, what does NHRA consider the configuration of the Olds and Ford 5.0 to be? It's not a shaft mount, by any stretch. But neither is it a stud mount. I'd suggest anyone considering making changes wait until at least after the PRI Show next week in Orlando, and what ever you decide, get approval from Glendora in writing, and keep it with the car at all times. __________________ Alan Roehrich 212A G/S

11-22-2011, 09:40 PM	#4
SS Engine Guy Member Join Date: Sep 2003 Location: usa Posts: 256 Likes: 1 Liked 1 Time in 1 Post	Re: 2012 Rules Are Posted Aftermarket rockers. And more spring pressure. And nothing about ratios which will work much better with different ramp angles on cams which will require more spring pressure. Speeding up opening and closing intervals. And you can only get so much spring without bigger diameter valve pockets. (next change) Sounds reasonable to me------------In SUPERSTOCK. If you can't make a stock rocker live with the mods allowed you probably should be running in a class that already allows aftermarket rockers. Not screwing up a class that is screwed up enough by all the whining, and aftermarket BS that has already been allowed. As many have stated deregulating spring pressures caused this. Just what we need, or so I'm told, more classes. I thought the manufacturers wanted less classes? Which is it?