Mandated Manifold Purchase?

[The Counterfeiter]

Guess I'm completely out of the loop. In the Diehl thread it refers to this. Is this the two piece unit with breakaway studs? Are teams being forced into this with only two races to go?

 

[yoda]

Looks like it applies at Pomona '16:

SECTION 17: FUNNY CAR, ENGINE:1 , INTAKE MANIFOLD (Page 3) (10/26/2015)

Beginning Jan. 1, 2016, accepted setback manifolds: AJPE Stage III 25A-110, JFR FAM1174 and TBS-500. All other setback manifolds prohibited. Manifold studs must be manufactured per NHRA specifications. Refer to NHRARacer.com for minimum requirements. Manifold restraints mandatory on all set-back superchargers. Front manifold restraint meeting SFI 14.5 mandatory. A current list of NHRA-accepted manifold restraints is available on NHRARacer.com. Manifold burst panel(s) meeting SFI Spec 23.1 mandatory. If single panel is used, total area of rupture disk must equal or exceed 10 square inches. If multiple panels are used, total area of rupture disks must equal or exceed 12 square inches. Panels may be installed in the front and back, or on each side, of manifold. Only one panel per opening permitted. “Doubling” or “tandem” panel installations prohibited. See General Regulations 1:10.

 

[TooTall999]

I'm confused, it states "Beginning Jan. 1, 2016" that this goes into effect. Why are they enforcing it before that date?

 

[yoda]

Are they enforcing it?

 

[rick]

maybe Jeff Diehl bit the bullet early and is wanting to test it out to get some data on it for next year

 

[turbo ken]

Either go to a race, or spend some money on new parts.

 

[yoda]

Either go to a race, or spend some money on new parts.

For some teams, yes.

Not everyone out there drills oil wells for a living (or, should I say, their dad does...)

 

[turbo ken]

The manifold rule already allowed the AJPE Stage III 25A-110, and JFR FAM1174 manifolds. For next year they are allowing everyone to use the TBS-500 manifold which is the 2 piece manifold where the top of it can pop off along with a single burst panel. The AJPE, and JFR are one piece manifolds that use multiple burst panels. I would imagine AJPE, and JFR probably have their own 2 piece manifolds in the works.

 

[The Counterfeiter]

The manifold rule already allowed the AJPE Stage III 25A-110, and JFR FAM1174 manifolds. For next year they are allowing everyone to use the TBS-500 manifold which is the 2 piece manifold where the top of it can pop off along with a single burst panel. The AJPE, and JFR are one piece manifolds that use multiple burst panels. I would imagine AJPE, and JFR probably have their own 2 piece manifolds in the works.

Thank you - some good information. However . . . Google search for "TBS-500 manifold" yields nothing. Who makes this thing? And perhaps more importantly, what does it cost and can it survive the "pop off" when (or if) studs separate properly?

 

[turbo ken]

It's 2 piece manifold that has been run on some cars to test, it's held together with something like the aluminum blower studs that are designed to break. They showed it on tv during one of the races, I forgot who exactly makes it. Since it's a newly accepted part it will probably take a little time for it to show up on a internet search.

 

[Toejam]

It's 2 piece manifold that has been run on some cars to test, it's held together with something like the aluminum blower studs that are designed to break. They showed it on tv during one of the races, I forgot who exactly makes it. Since it's a newly accepted part it will probably take a little time for it to show up on a internet search.

Wonder if the Manufacturer had any influence in NHRA mandating?

 

[turbo ken]

Wonder if the Manufacturer had any influence in NHRA mandating?

It's just another allowed intake manifold for fuel cars.

 

[.]

"Leeza Diehl we were working on funding for this race but it didnt come thru and we also had to order 2 of the new mandated manifolds.. was smarter financially for us to hold off on running this race"

 

[turbo ken]

He is supposed to put some pictures up of the manifolds they are running now vs the mandated. I'm curious now!

 

[The Counterfeiter]

He is supposed to put some pictures up of the manifolds they are running now vs the mandated. I'm curious now![/QUOTE] Curious? - That's why I started this thread! This thing is either cast in one piece and sawed in half or there is a LOT of CNC work! Also . . . is it mandated for T/F too? More questions than answers so far -

 

[Draw 3D]

This thing is either cast in one piece and sawed in half or there is a LOT of CNC work!

I would think that it's a 2 piece hog-out, a cast manifold, either 1 or 2 piece, would not be as strong.

 

[The Counterfeiter]

I would think that it's a 2 piece hog-out, a cast manifold, either 1 or 2 piece, would not be as strong.

Devil's Advocate - hogged out of two pieces of what . . . billet or a not-so-strong casting? Brief look I got on broadcast looked like the outside was not machined. Where are those photos?

 

[Draw 3D]

Devil's Advocate - hogged out of two pieces of what . . . billet or a not-so-strong casting? Brief look I got on broadcast looked like the outside was not machined. Where are those photos?

A hog-out infers from solid material, it can be a billet but not necessarily, it could be a rough forging.

 

[unclebob]

The manifold in question has many pictures on Facebook (can't remember where) but is manufactured by Tom Shelar owner of Mastercam and the Hi-Speed Motorsports N/TF dragster (CHRR winner).

 

[turbo ken]

"Nasty" Dave Benjamin has been running his own 2 piece billet manifold for at least a couple of years.