How much BOOST? - Ford Powerstroke Diesel Forum
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post #1 of 27 Old 04-28-2009, 03:55 PM Thread Starter
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How much BOOST?

How much boost should 2000 7.3L PSD produce? The truck has an aftermarket intake, 4" exhaust, map fooler, gauges and just installed a TW chip. The best I can get out of it is on street mode and it will only boost about 17psi max. Is this normal?
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post #2 of 27 Old 04-28-2009, 03:59 PM
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Mine will peg 30 PSI with leaking up pipes. i also have stage 2 injectors also. but yours sound like is running on the low side. check for leaks at all of your boots and at your up pipes
post #3 of 27 Old 04-28-2009, 04:02 PM
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Quote:
Originally Posted by virgili5 View Post
How much boost should 2000 7.3L PSD produce? The truck has an aftermarket intake, 4" exhaust, map fooler, gauges and just installed a TW chip. The best I can get out of it is on street mode and it will only boost about 17psi max. Is this normal?
you have a wicked wheel?

Typical cummins owner.

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post #4 of 27 Old 04-28-2009, 04:18 PM Thread Starter
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Dont think so, all of the engine is stock except for the add-ons
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post #5 of 27 Old 04-28-2009, 04:21 PM
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Quote:
Originally Posted by virgili5 View Post
Dont think so, all of the engine is stock except for the add-ons
WW wouldn't hurt. If you don't have any surge i wouldn't worry about it unless your stock wheel takes a crap

check your IC boots it sounds like you have a boost leak

Typical cummins owner.

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post #6 of 27 Old 04-28-2009, 04:21 PM
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should be between 22-27 mine would push 25-27 when i had just the intake exhaust chip. shes pushin 40+ now with injectors and turbo

early 99 F-350 afe stage2, straight 5 TBE, ts 6 pos., suncoast tranny&tc, snow performance meth., 300cc 200 % over hybrids, turbonetics ball-bearing, adrenaline hpop, dick cepek fc IIs on micky thompson classic IIs, 2" shakle in front and add-a-leaf out back, 15% tint, ccv dumped under cab
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post #7 of 27 Old 04-28-2009, 04:34 PM
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I would think you should be around 25 to 27Psi..I am right at 30psi.with roughly the same set -up.


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post #8 of 27 Old 04-28-2009, 06:25 PM
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yea thats way low im gettin 30-33 with the same setup




E99 f350 cclb 4x4 6speed
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post #9 of 27 Old 04-28-2009, 06:26 PM
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you have a leak somewhere.... i would easily see 30psi+ with my setup...

check all your hoses and check to make sure you dont have an exhaust leak on the up pipes

-Raul
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post #10 of 27 Old 04-28-2009, 06:41 PM
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I hit 31 with that same setup. You have a leak. Check your IC boots, up pipes and make sure your Boost guage is working properly. Where are you tapped into for the Boost guage?


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