how to get more boost out of stock turbo - Diesel Forum - TheDieselStop.com
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Power Strokes 1994-1997 Upgrades and Aftermarket Upgrading or adding OEM or aftermarket equipment to your 1994-1997 Ford F-Series with Power Stroke engine.

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Old 09-20-2012, 03:35 PM   #1 (permalink)
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how to get more boost out of stock turbo

title says it all i have a 96 f250 7.3 i am only seeing 12-15 psi max of boost and i know that the turbo is capable of putting 20+psi i jus want to get to atleast more than 15psi is that all i should put out being stock or do i have a problem do i have a waste gate that isnt operating properly?


thanks,
cam
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Old 09-20-2012, 03:37 PM   #2 (permalink)
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and my boost gauge is "t'ed" into my MAP sensor hose could i be getting a bad reading threw their and i have had a error code for my MAP sensor but i cleared it and it never came back so could that be a problem?
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1996 f250 7.3l powerstroke glowshift gauges boost, egt, and trans temp. rest is stock
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Old 09-20-2012, 04:45 PM   #3 (permalink)
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You need a chip to push more fuel to make more boost. And with a chip you should also get a open air intake and get rid of the stock downpipe.
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Old 09-20-2012, 05:49 PM   #4 (permalink)
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Short answer is a chip. Long answer is change to a Tymar intake, good downpipe and check for exhaust or intake leaks. If I realllllly hammer on mine I can see 17 or so lbs (maybe 18, but probably 17). I have a DIY intake and a stock DP cut off ahead of the cat. Need to have a good load behind you and run about 3,400 rpm to see anything above what you are seeing. I know there is a different exhaust housing you can put on, but I am pretty sure that moves the stock max boost down in the powerband a bit. Do a search for the 1.0 housing and you'll find some good reading.
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Old 09-20-2012, 06:17 PM   #5 (permalink)
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yea i am only running on the stick down pipe i am running no other exhaust jus cut right off at the cat and i am soon getting a ts performance chip with custom tunes from kt performance and also a a 3inch dp to 4 in dual exhaust or a 3inch dp to 5 inch single straight pipe i am leaning towards the diamond eye 5 inch straight pipe which has the 3 inch dp and if i do a boosted launch i can see a max of 20psi and thats at 3500 rpm butt the egt wer at 1000 degrees should the new exhaust lower the exhaust gas temp?
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Old 09-22-2012, 11:45 AM   #6 (permalink)
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All the OBS non-intercooled PSD's do NOT have waste gates. Some people have put S-D intercoolers on but still probably don't have waste gates.

For a mostly stock truck, a single 4" exhaust is plenty. Dual 4" or a single 5" is just a waste of time, effort, & money. A single 4" should be fine to 400-450 RWHP. Stock was 3-1/2".
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Old 09-30-2012, 10:21 AM   #7 (permalink)
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Make sure you do not have a leak at your up-pipes or exhaust manifolds. Should be able to get close to 20 on a stock motor.
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Old 10-07-2012, 03:31 PM   #8 (permalink)
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A quick-spool housing should help with boost. Like a .9 or 1.0 A/R. I almost got one before I sold my truck.
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