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  #1  
Old 03-10-2008, 02:49 PM
If it aint a CAT itsa DOG

 

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stock boost psi?

What are you guys with 7.3's running for boost when your in stock mode or just don't have a chip or tuner at 55mph? I changed out my ebp sensor about 3 weeks ago and after that i would hold around 2-3psi on the gauge. Now its back to around 1psi. Nothing changed except it warmed up slightly outside, but thats it. When i replaced that sensor i also had a code for "no boost psi" and something with my map sensor. I got rid of my edge so i can't check codes right now. Any ideas guys?
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Old 03-10-2008, 02:52 PM
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right now at fifty five i am reading no boost. if i get on it stock i can hit around 10 psi that will change real soon!!! But 75 i will run about 4 pounds
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Old 03-10-2008, 02:59 PM
If it aint a CAT itsa DOG

 

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Ok well that sounds like what mine is reading then. I can also get it up to around 10 psi when i get on it. I test drove a 99 psd this weekend and it had crappy banks gauges on it, that boost gauge would shoot right up to 20psi if i got on it. So is was like wtf. Is this gauge messed up or is my truck messed up? That 99 didn't feel like it was chipped or anything.
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Old 03-10-2008, 03:03 PM
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if it didnt seem really spunky i would say maybe the gauge tubing might be pinched. i would hit 15 psi with my boost gauge before i cut the smashed ends on it and replaced so it was a good flow for the psi tube and re did the ends
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Old 03-10-2008, 04:49 PM
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when I put mine in the stock setting it pegs about 18psi at WOT.... it is just a plain a$$ turd in the stock setting!!!

about 55 in OD it is usually 3-4 psi and 55 out of OD it is usually 5-6 psi.... and I have 3.73's in the rear...
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Old 03-10-2008, 04:58 PM
If it aint a CAT itsa DOG

 

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So it sounds like they kinda vary a little. I am used to my truck being in stock mode now Jim. I know what you mean, stock sucks. I just don't have the extra 4 hundo for dp tunes right now. So i take it your happy with your DP tunes? Thanks for the info Jim.
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Old 03-10-2008, 05:01 PM
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yea I hate the stock setting! LMAO!!

yea a normal PSD is suppose to get about 15-18 psi at WOT....


I am SOOOOOOO happy! I get a grin on my face every morning I get in it! LOL
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Old 03-10-2008, 05:04 PM
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mine is a stock 96er. at 55mph i get 4psi.
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Old 03-10-2008, 05:04 PM
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16-17 seems to be average for stock programmed trucks. Add a load and that number goes up a few psi!

Driving at 55 I was registering 2-3 psi with the stock turbo.
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Old 03-10-2008, 05:06 PM
If it aint a CAT itsa DOG

 

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i gotta wait a while for my dp tunes. So do you think i might have a map sensor issue since i'm not boosting to 15-18psi? I gave it almost wot the other day and got about 11psi out of it. Marc said that when i first pulled the codes for ebp sensor and for the map sensor that a bad ebp sensor could cause the map to trigger a code.
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