NHRA Pro Stock changes announced.

[Unkl Ian]

http://www.competitionplus.com/drag-rac ... -pro-stock

[Walter R. Malik]

Sounds like a morphed version of heads-up Super Stock racing.

Isn't that how Pro Stock came to be in the first place...?

[dieselgeek]

I saw the Erica Enders facebook post. The NHRA is calling the EFI system that will be mandated "TBI"

I sure hope that is a typo or some marketing clown who has no idea what they're talking about, lol.

[kid7755]

Just read link to article. Now that's crazy talk!! Maybe comp group is set to kick out ez 3.0, a dual quad dominator kit. Lol

[lightning-jr]

It's long past time for FI in Pro-Stock. On Saturday Greg Anderson whined about the rev limit, and how much Summit money he would have to spend lol.

Can't wait for more details on the TBI's & control unit, McLaren?

[lightning-jr]

I saw the Erica Enders facebook post. The NHRA is calling the EFI system that will be mandated "TBI"

I sure hope that is a typo or some marketing clown who has no idea what they're talking about, lol.

The TBI thing got me too. I think they are trying to make it simpler to start out with, and somewhat retain the appearance of carbs that were such a big part of the class identity.

[dieselgeek]

I'm 90% sure that was a mistake. True "TBI" injection is far worse at distribution than carburetion. Especially with engines cammed like these.



My next hope, which has perhaps a 1% shot, is that NHRA will let manufacturers battle with diferent ECUs. But having worked a little bit with the Pro Mods last year, I learned quickly how NHRA works. Highest bidder wins the spot. Which is going to mean another Foreign ECU like NASCAR (I love how NASCAR sells that as a Foreign ECU - BUT IT HAS AN AMERICAN PROCESSOR!!!! lol)


Sure hope NHRA comes through on that part, but not holding my breath.

[Walter R. Malik]

My next hope, which has perhaps a 1% shot, is that NHRA will let manufacturers battle with diferent ECUs. But having worked a little bit with the Pro Mods last year, I learned quickly how NHRA works. Highest bidder wins the spot. Which is going to mean another Foreign ECU like NASCAR (I love how NASCAR sells that as a Foreign ECU - BUT IT HAS AN AMERICAN PROCESSOR!!!! lol)

Sure hope NHRA comes through on that part, but not holding my breath.

Different ECU's, (and systems), would sure make it more fan interesting with, Fast, Holley. MegaSquirt, MSD, McClaren, Big Stuff, Accel and a whole slew of others competing against one another.
BUT... you are totally correct ... NHRA is all about the money and who will be the highest bidder to pay them the most for the rights.

[Unkl Ian]

http://www.nhraracer.com/content/genera ... zoneid=132

NHRA 2016 PRO STOCK EFI REQUIREMENTS

Engine Control Unit:

o Holley HP ECU part number 554-129 mandatory

o EFI closed loop functionality permitted

o Rev Limiter:

§ NHRA hard limiter set to 10,500 rpm

§ Teams have the ability to set soft limiter to desired rpm level

Throttle Body:

o Holley part number 112-123 mandatory (25 sq. inches)

o Must be mounted forward facing and remain in the engine compartment

Fuel Injectors:

o Holley part number 522-568 mandatory

o Maximum of 8 injectors permitted

o Must be mounted externally on intake manifold runners

o Injector tips may not be modified and diffuser plates may not be added

o Use of standard Holley supplied extenders only permitted

o Holley HP Smart Coil-Near-Plug Smart Coil (8 ea.) Holley part number 556-112 mandatory

· Fuel Delivery System:

o 90 psi Max

o Earl's Performance Dry Break Coupler part number JV270204RL mandatory

o Coupler must be remotely mounted on the fuel line between the fuel pressure regulator and fuel rail

o Coupler must be easily accessible by NHRA Technical Department

Hoods:
Must be original OEM design, any variations to the hood must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition
Maximum hood height from ground will be determined at a later date
Air Intake:
Must be located below top of front grill
Opening in body (location and dimensions) must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition
Sensors (mandatory):

o Holley Hall Effect Crank Sensor Holley part number 554-118

o Holley Hall Effect CAM Sensor Holley part number 554-127

[Walter R. Malik]

Sounds like a high horsepower COPO Camaro you are describing ... for NHRA it is nothing but, "who will pay us the most money". Not about a real competition among vendors.

[Dave Koehler]

sorry to see them mandate the ECU. I was hoping for some competition to bring that class back to interesting.
Same old sad game that Glendora can't shake. Straight line NASCAR and it should not be.

Wonder what Holley had to pay the suits for that privilege?
Were they the only company with enough bank to back the play?

[Unkl Ian]

Was carb size limited before ?
And how does the new throttle area compare to the old ?

[woody b]

I don't know if carb size was limited but they all ran 2 dominators. I suspect the mandated injectors, as well as the maximum fuel pressure will be the limiting factors for horsepower though. I wonder if NHRA is doing this to kill the class.

[Walter R. Malik]

Was carb size limited before ?
And how does the new throttle area compare to the old ?

BRAND wasn't...