is 15psi boost normal or low?? - Ford Powerstroke Diesel Forum
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post #1 of 41 Old 06-24-2009, 04:11 AM Thread Starter
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is 15psi boost normal or low??

2002 7.3 pretty stock intake and a edge evo 2 on a tow tune (only thing i can say good about the edge is i like the small pod with the 4 function guage setup).

i pull a 13k trailer and under hard throttle it will build 14-15psi boost. Is that correct, i know on here i see a lot higher numbers. the truck pulls good.

i have checked all the clamps on the intercooler and they are tight, no smutt around them, dont think i have any leaks in them. looked at the y pipe in the back of the turbo where the exhaust feeds in and it is clean and dont hear any exhaust leaks.

thanks Fletcher
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post #2 of 41 Old 06-25-2009, 05:10 PM
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Originally Posted by SCDEALER View Post
2002 7.3 pretty stock intake and a edge evo 2 on a tow tune (only thing i can say good about the edge is i like the small pod with the 4 function guage setup).

i pull a 13k trailer and under hard throttle it will build 14-15psi boost. Is that correct, i know on here i see a lot higher numbers. the truck pulls good.

i have checked all the clamps on the intercooler and they are tight, no smutt around them, dont think i have any leaks in them. looked at the y pipe in the back of the turbo where the exhaust feeds in and it is clean and dont hear any exhaust leaks.

thanks Fletcher
I'm pretty sure your truck should be pushing 16psi stock. You might have a minor boost leak somewhere. Get you hands on a boost leak detector, or you could probably make one yourself & give it a quick check. Might be an IC boot or something starting to loosen.

"HEAVY" 2001 F-250 XLT 4x4 EC SB:
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.

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post #3 of 41 Old 06-25-2009, 05:13 PM
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sounds low, i know with my truck stock i was hitting about 21-23 PSI
post #4 of 41 Old 06-25-2009, 05:16 PM
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Originally Posted by wriott View Post
sounds low, i know with my truck stock i was hitting about 21-23 PSI
21-23???? I'm not trying to be an azz, wriott, I swear! But are you sure about those #'s? Just wonderin'.

"HEAVY" 2001 F-250 XLT 4x4 EC SB:
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.

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post #5 of 41 Old 06-25-2009, 05:16 PM
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get a banks or bd wastegate bd's come preset and you can adjust them to get 30 psi tops for a stock turbo also turbos tend to leak around the compressor wheel housing so when you get the wastegate make sure all the bolts are tight they tend to loosen over time
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post #6 of 41 Old 06-25-2009, 05:18 PM
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yeah, not 100% stock, i had a boost fooler on so it didnt defuel. now im able to hit 33-34 with the mods in my sig
post #7 of 41 Old 06-25-2009, 05:19 PM
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Originally Posted by wriott View Post
yeah, not 100% stock, i had a boost fooler on so it didnt defuel. now im able to hit 33-34 with the mods in my sig
Ah! Sorry, man....I'll just shut my piehole!

"HEAVY" 2001 F-250 XLT 4x4 EC SB:
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.

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post #8 of 41 Old 06-25-2009, 05:22 PM
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with my new turbomaster waste gate and whicked wheel i still only get like 17 with my boost fooler dialed in idk what up with that

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post #9 of 41 Old 06-25-2009, 05:22 PM
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Ah! Sorry, man....I'll just shut my piehole!
no problem, actually it made me think about it a little harder and i rememberd i had the boost fooler installed as i did it the same time with gauges. i didnt have gauges in the 100% stock form so im not sure what it is at stock but i would thing it should be near 20 or so
post #10 of 41 Old 06-25-2009, 05:24 PM
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Originally Posted by wriott View Post
no problem, actually it made me think about it a little harder and i rememberd i had the boost fooler installed as i did it the same time with gauges. i didnt have gauges in the 100% stock form so im not sure what it is at stock but i would thing it should be near 20 or so
Stock's 16psi. With or without a WW or Banks wheel.

"HEAVY" 2001 F-250 XLT 4x4 EC SB:
TW 6pos chip, S&B CAI, Monster 4" exhaust w/ Power Elbow, Big Head WGA, Technicooler, ITP boost fooler, Gen 1 Wicked Wheel, Six-Gun Tuner, Optima Yellow Tops, AutoMeter(Boost, Trans, EGT), CCV mod, MTS TC, MTS valve body, Trans Tech performance rebuild kit, TransGo shift kit, Hornblasters 242 Shocker Train Horns.

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