Re: New NTPA rule

	New NTPA rule July 25, 2022 06:31AM
Terry G	What's the new NTPA rule about injector line length about? And why does it good put in place in the middle of the season? Reply Quote

	Re: New NTPA rule July 25, 2022 07:09AM
Red river	Where did you hear or see this at???? Reply Quote

	Re: New NTPA rule July 25, 2022 07:13AM
Brent Yaron Registered: 12/19/2016 Posts: 1,161	Posted to the NTPA/WPI Tech Services Facebook page. Brent Yaron Hooked Up Pulling Productions hookeduppullingproductions@gmail.com Reply Quote

	Re: New NTPA rule July 25, 2022 07:15AM
Terry G	Wpi/Ntpa Technical Services Dept. page on Facebook. Reply Quote

	Re: New NTPA rule July 25, 2022 07:22AM
Red river	This will eliminate center mount injection pumps Reply Quote

	Re: New NTPA rule July 25, 2022 08:03AM
Why	What is the reasoning or logic behind this ? Reply Quote

	Re: New NTPA rule July 25, 2022 08:51AM
Oly Registered: 03/17/2009 Posts: 461	Red rivers comment is your answer. Reply Quote

	Re: New NTPA rule July 25, 2022 09:03AM
Why	Thanks, but what is the issue with this? Is there a certain advantage to it? Reply Quote

	Re: New NTPA rule July 25, 2022 09:58AM
Lower	There are a few 4.1s and pro stocks that this will affect. What about engine placement? Can Engine be lowered so crank and pinion are on same level in classes required to run ag chassis and still be NTPA legal? Reply Quote

	Re: New NTPA rule, To; Lower July 25, 2022 06:06PM
HP	The engine may be lowered on an ag chassis tractor. To the AXLE centerline. If the pinion is on same centerline as the axle, it is fine. Reply Quote

	Re: New NTPA rule, To; Lower July 25, 2022 06:10PM
HP	The new rule will NOT eliminate center mounted injector pumps. If someone with a center mounted injector pump builds 24 1/32" long injector lines, they are LEGAL. IF they wanted to make center mounted injector pumps illegal, this rule does NOT address that at all. Reply Quote

	Re: New NTPA rule, To; Lower July 25, 2022 06:13PM
HP	I do wonder, on the center mounted injector pumps, do the driveline have to conform to mod tractor/2wd driveline shield rules, or can they use loops and u-joint covers like 4wd. And do they need teathers? Reply Quote

	Re: New NTPA rule, To; Lower July 26, 2022 12:34AM
Curious George	What is a center mount injection pump, and what application or vehicle and brand are they used on? Reply Quote

Re: New NTPA rule, To; Lower July 26, 2022 06:39AM

Under_Pressure

I don't understand the urgency of this- why it has to be implemented mid season? It's not an apparent safety issue. There are likely some benefits to shorter lines, but as mentioned in other posts we are talking about the ragged edge here- the advantage might be real, but it's tiny in the grand scheme of things. I can't imagine that someone is running away with a class somewhere this summer because they have 20" fuel lines and everyone else says they will just stay home because they can't complete with that. And now they are changing it already ("...except heavy pro stock...") which suggests that not only did someone decide this needed to take effect mid season, but it was thrown together with such haste that they couldn't even consult all the classes affected to ensure it made sense?

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Re: New NTPA rule, To; Lower July 26, 2022 01:57AM

Seen One

By putting a long “driveshaft” on and moving the pump to the center of the motor, you can shorten the injection lines drastically. Shortening the injection lines allows for less “mush” not sure what else to call it, if the lines and fuel when the injection pump begins it’s injection cycle. When the pump starts the cycle, the high pressure can cause the fuel lines to flex and bulge on a microscopic level, but it still causes a lag in to start of the injection cycle. Less lag=more consistent & crisper injection cycle. It’s like adding timing without the risk of burning a motor down.

The only ones I know of are on big block deeres, there very well could be ones for small blocks and IH motors, but I haven’t heard of one yet.

As said above, all this will do is make the guys that have this on put on 24 1/8 inch lines. Maybe that’s enough to take away enough of the benefit to where it makes the pump drive less of a big deal.

The drive system is one large piece, all solid. I don’t see as to why they would think this is illegal, or why if they think it is, they don’t just address the issue head on.

Off topic, but as far as the moving the motor in an ag chassis…the motor must be in factory location to the rear axle, and bolted up using factory flanges, and use all factory housings. If you let a person move a motor in an ag chassis, that is no longer an ag chassis, that is a cast rear ended component. And why in gods name would anybody spend the money to basically build a component and still be stuck with 50 year old outdated cast.

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	Re: New NTPA rule July 26, 2022 03:14AM
Jerkmychain Registered: 09/26/2021 Posts: 71	So who are the pullers that this rule will effect? I’m betting it’s some class leaders only….. Reply Quote

Re: New NTPA rule July 26, 2022 02:41AM

Brent Yaron

Registered: 12/19/2016
Posts: 1,161

Here is the updated rule change.

The following rule goes into effect Aug 10, 2022:
New rule added to the 2022 NTPA rulebook (general rules) pg 27 letter G under engines, a new #7 which reads:
Diesel fuel injection lines must be a minimum of 24 inches in length from the injection pump to the injector. This applies to all classes with a diesel engine.
Note: The Heavy Pro Stock class, V-8 engines and high pressure common rail systems including electronic fuel injection are exempt of this rule.

Brent Yaron
Hooked Up Pulling Productions
hookeduppullingproductions@gmail.com

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	UPDATE: Heavy PS exempt from rule change July 26, 2022 10:21AM
The Original Michael Moderator Registered: 07/06/2008 Posts: 1,347	Both NTPA website and Facebook now say heavy PS is exempt from the rule change. Reply Quote

	Re: New NTPA rule July 26, 2022 11:30PM
sfd823 Registered: 08/02/2008 Posts: 236	Sounds like they are sticking their noses in places they need to stay out of. Reply Quote

	Re: New NTPA rule July 27, 2022 04:00AM
smh	how about 'em changing the points system for one class in the middle of the season? no ones talking about that lol Reply Quote

	Re: New NTPA rule July 27, 2022 04:13AM
Brent Yaron Registered: 12/19/2016 Posts: 1,161	Which class? Brent Yaron Hooked Up Pulling Productions hookeduppullingproductions@gmail.com Reply Quote

	Re: New NTPA rule July 27, 2022 07:50AM
sfd823 Registered: 08/02/2008 Posts: 236	Is the next new rule going to limit the amount of time you can spend on the dyno? Amount of seconds you can datalog? Reply Quote

	Re: New NTPA rule July 27, 2022 12:37PM
Logan Thomas Registered: 02/23/2017 Posts: 137	Quote sfd823 Is the next new rule going to limit the amount of time you can spend on the dyno? Amount of seconds you can datalog? ^^^now that's funny.... Reply Quote

	Re: New NTPA rule August 29, 2022 08:16AM
.02	What was the reason for this rule? Reply Quote

	Re: New NTPA rule, To;.02 August 29, 2022 01:06PM
HP	The short answer is, WHINERS. Reply Quote

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