stage 1 injector question

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Mar 21, 2012 | 06:08 PM

#16

superduty4x4

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Joined: Jul 2003

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From: Newport, WA

Quote:

Originally Posted by f350rebel7788

Reeeeeeaaalllly.... well I guess I know what my next upgrade will be! I'd rather get it before it gets me, cause knowing the timing I have, I'll upgrade injectors and it won't go out when convenient... lol

FWIW, I noticed no difference when swapping to a modded 17° HPOP in either Whitey or PDE. Don't expect a huge change from the HPOP.

Mar 21, 2012 | 06:32 PM

#17

strokin'_tatsch

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Joined: Jun 2007

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From: Austin, TX

Quote:

Originally Posted by deadsenator

So, I am trying to understand the duty cycle on the pump. I've been monitoring the PSI and %DC numbers but I do not ultimately know what they mean.

Putting my foot in it, I get ~30%DC and ~2200psi. What should I be looking for? What tells me my 15° HPOP is either tiring out or at its limits?

If your only getting to ~30% DC, your tuner isn't asking for 3000psi of ICP, in an attempt to keep you from setting the CEL and codes.. If you were calling for 3000psi and only holding ~2200psi, the DC would rise to 50+% in an attempt to get the pressure up to what the tuning is asking for. If you call for ICP and cannot hold pressure even at 50+% DC, you will set the CEL and trip a code.

Mar 21, 2012 | 06:47 PM

#18

f350rebel7788

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Joined: Jan 2011

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From: Pilot Point, TX

Quote:

Originally Posted by superduty4x4

FWIW, I noticed no difference when swapping to a modded 17° HPOP in either Whitey or PDE. Don't expect a huge change from the HPOP.

Gotcha... my big thing is i'd rather have overkill on things like cooling and fuel supply than power and performance...

Mar 22, 2012 | 09:19 AM

#19

superduty4x4

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From: Newport, WA

Quote:

Originally Posted by f350rebel7788

Gotcha... my big thing is i'd rather have overkill on things like cooling and fuel supply than power and performance...

Copy, I just didn't want you thinking that swapping to a T500 HPOP was going to make this remarkable difference then have you be disappointed when the change is very small to completely undetectable.

Mar 22, 2012 | 10:44 AM

#20

f350rebel7788

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Joined: Jan 2011

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From: Pilot Point, TX

Quote:

Originally Posted by superduty4x4

Copy, I just didn't want you thinking that swapping to a T500 HPOP was going to make this remarkable difference then have you be disappointed when the change is very small to completely undetectable.

I appreciate that! Lol I think from everything that I understand, the HPOP is one of those behind the scene things... you don't really pay attention to it and it doesn't make a difference until it quits workin lol

Mar 22, 2012 | 04:54 PM

#21

427 fordman

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Joined: Feb 2009

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From: Plankinton, SD

Quote:

Originally Posted by superduty4x4

Copy, I just didn't want you thinking that swapping to a T500 HPOP was going to make this remarkable difference then have you be disappointed when the change is very small to completely undetectable.

That's why I said MAY notice a BIT more power. Like chase said, maybe, maybe not, but not a lot for sure.

Mar 22, 2012 | 07:11 PM

#22

deadsenator

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Joined: Jan 2004

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From: Pugetopolis

Quote:

Originally Posted by strokin'_tatsch

Thanks Travis. That helps. I switched to my tow setting and it hit 2500psi at one point. I need to mess with the gauge settings so I can catch the numbers easier.

Mar 22, 2012 | 07:44 PM

#23

Talyn

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Joined: Oct 2003

Posts: 17,799

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From: Ashland City, TN

If your injectors want more oil than your pump can supply, you'll never see their potential.

and upgraded hpop will make a difference, however you might not ever notice it with the butt dyno.