7.3 idi straight pipe - Page 2 - Diesel Forum - TheDieselStop.com
7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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post #16 of 21 (permalink) Old 09-27-2019, 05:37 PM
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Originally Posted by ERIC HEITZ View Post
I got a 7.3 and a few things I am uncertain about is the fuel pump I'll start and drive it for a hour and then u shut it off and it doesnt want to start unless u pour water on the fuel pump and I was wondering whays the best way to straight pipe and make it sound good
Start by replacing your IP. Having to pour water over it means it is wore out. Straight pipe? if you're going to do it, go all out. put dual stacks out behind the cab, and end them at just about window height, then you'll be sure to hear it.

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post #17 of 21 (permalink) Old 09-28-2019, 09:52 AM
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Don't forget the big Git-Ur-Done sticker across the front windshield.
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Heavy truck and diesel mechanic (thankfully retired after 30+ yrs)
'91 F-250 SC 4X4, 5spd. ATS Turbo, 3:55 diff.
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post #18 of 21 (permalink) Old 09-28-2019, 10:39 AM
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6” Stainless stack through the bed and right behind the cab! Thats the way to impress everybody 😉


OP, have you thought about a Walker BTM for a good sound?
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2002 F-250 4x4 CC SB 7.3 PSD w/4R100. 182,000 miles.
NOS Black CPS. ScanGauge-II, AIC, Bilstein 5100, Stancor GPR, Marinco Mod, B&W Turnover Ball, Michelin Defender LTX


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2002 F-250 4x4 SC LB 7.3 PSD w/ZF-6. 177,000 miles.
NOS Black CPS. ScanGauge-II. Bilstein 5100. Stancor GPR. Walker BTM. Noco Mod. Michelin Defender LTX 285/75/16.

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2000 F-250 4x4 SC SB 7.3 PSD w/4R100. 164,000 miles.
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Last edited by ArcticDriver; 09-29-2019 at 09:46 AM.
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post #19 of 21 (permalink) Old 09-29-2019, 02:42 PM
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Don't forget the big Git-Ur-Done sticker across the front windshield.
About midway up the windshield?
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1993 F-350 crew cab non-turbo 5 speed transmission
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post #20 of 21 (permalink) Old 10-27-2019, 02:10 AM
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My 93 non-turbo came straight piped via the exhaust rotting just ahead of the muffler. Without a turbo, it sounds like any big block v8. I personally dont care for it. I'm also 40 and have my own business, so I need to keep that "professional image"
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post #21 of 21 (permalink) Old 10-27-2019, 08:44 AM
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My 93 non-turbo came straight piped via the exhaust rotting just ahead of the muffler. Without a turbo, it sounds like any big block v8. I personally dont care for it. I'm also 40 and have my own business, so I need to keep that "professional image"
I agree. I have always liked to hear myself think. I also have spent so much time around loud engines, I just don't want to listen to them any more
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1993 F-350 crew cab non-turbo 5 speed transmission
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