turning up the pump.... - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #1 of 13 Old 10-20-2007, 08:42 AM Thread Starter
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turning up the pump....

hey guys i was reading in a different thread that if you turn up the pump its unreal the difference it makes...
well im ready to take the plunge.

BUT
i have a couple questions.
what should my EGT's be 100% stock??
what should my EGT's stay under??

and can i turn it up IF i plan on adding a hypermax turbo kit in the near future? or no should i just wait to add the kit?
once the kit is on can i tweak it some with the pump??

THANKS!!!!
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post #2 of 13 Old 10-20-2007, 08:47 AM
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What pump are you talking about turning up.


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post #3 of 13 Old 10-20-2007, 08:51 AM
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I think your assuming that PSD's have fuel pumps like the Cummins and Dura-Crap trucks. They don't. Now, getting a return-style fuel system will help a little in the top end, but it's not going to make a HUGE difference like modding the pump on the other two.


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post #4 of 13 Old 10-20-2007, 08:53 AM
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Quote:
Originally Posted by Ditty View Post
I think your assuming that PSD's have fuel pumps like the Cummins and Dura-Crap trucks. They don't. Now, getting a return-style fuel system will help a little in the top end, but it's not going to make a HUGE difference like modding the pump on the other two.
That is what I thought Ditty but the last time I assumed something, you don't wanna know what happened.


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post #5 of 13 Old 10-20-2007, 08:59 AM
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Is this the article that you are talking about?

http://www.powerstroke.org/articles/...IDI/Page1.html

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post #6 of 13 Old 10-20-2007, 11:11 AM Thread Starter
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sorry guys im talking about the injection pump..

turning it up with a 5/32 allen key
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post #7 of 13 Old 10-20-2007, 11:12 AM
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Hes got an 7.3 IDI guys he does have an injection pump

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post #8 of 13 Old 10-21-2007, 07:00 AM
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we turned up the pump on a buddy's 6.9, it smoked like a freight train, but the motor was worn out so we couldn't really tell a difference there. Go for it, just keep your extended egts uner 1250 and keep the 1300 + runs to a VERY minimum

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post #9 of 13 Old 10-21-2007, 07:11 AM
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You can turn the fuel to a 7.3 IDI and it will make a difference, but it won't be a huge gain until you add that turbo.
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post #10 of 13 Old 11-02-2007, 10:36 AM
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I turned up the pump on my 94 turbo idi and I made and incredible difference. BUT you need the pryo if your going to turn it up.
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