Stock super duty turbo question

[littleredstroker]

How many psi should they put out, I have a fooler and 170k on the clock, I see max 25 psi is this normal? What is the most people have run outta these guys

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[TyCorr]

yeeeep. 27 or so. I suppose if you pull the red line off the you could overspeed it and make 32 hot psi.

 

[lincolnlocker]

the two stockers i went through hit 34lbs, hence the went through part... you can pull the red line off and set the gate with spring tension on its own to 30psi and it should do well there.... btw those turbos never got over 1400* either.. tunes kept it that way.

 

[littleredstroker]

That sounds safe lol

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[TyCorr]

That sounds safe lol

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Oh, it's not.

With your injectors, a 38r would be working fairly hard,imo, tuningdependent of course. I'd say, even leaving a few psi on the table you are about tapped out just because the size of the turbine. It's not really worth dicking with. If it's not.enough, upgrade.

Honestly Ford should.Have offered the r code charger and ac' s as an option. High torque or something option.

 

[littleredstroker]

Need some tuning adjustments then. I can hit 1600 in just a few seconds in my tow tune. I know I need an upgrade.... Just needed injectors and only wanted to do it once

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[TyCorr]

I'm not questioning your upgrades. I just can imagine how.crispy that charger gets. It's gotta feel fairly powerful and spool QUICK. I was just the opposite. StgIIs and 38r. Tuned to 410max hp and no smoke at all. 32ish psi...I didn't drive .very long so I don't.remember exactly other than it was clear. You could get a puff of smoke from idle to.WOT but it'd clean up right now.

 

[littleredstroker]

That's what I would like.its 20 psi in 4-5 seconds with convertor locked. I love it. Just too smokey

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[THETANK01]

I usually see about 30-34 psi max at WOT. Ofcourse aftermarket wastegate and what not

 

[lincolnlocker]

i had my stockers wg locked tight tho... never adjusted it down... btw the 1400* i hit was when i was up over 100mph...

littlered, if you adjust your wg to hold to a little higher psi it should help clear up some smoke... my 38r with the gate locked tight in my hot tune from a dead stop will blow a cloud of black smoke but after it lights it turns to a grey haze, but thats at wot tho too.

 

[littleredstroker]

And you adjust it by the nut on the actuator right? Making it longer correct?

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[lincolnlocker]

its on the end of the actuator rod... and u want it shorter so screw it tighter... you can actually shorten it enough to have to pull it hard to get it to go back on the wg pin. then you drive it and see what the boost is then back it back down.... its kinda a pain in the azz.

 

[Scott@All Pro Diesel]

I have pulled 42 out of my first stocker and it lasted about 10k. The second one about 350 miles LOL got a van turbo now and it is holding up pretty good. This is with 300/200s.

 

[Tim @ P.I.S.]

Scott, I'm pretty sure it has already been decided that your truck is a freak.oke:

 

[littleredstroker]

So what would he considered safe max? 27?

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[lincolnlocker]

30psi

 

[Scott@All Pro Diesel]

Ya I would not recomend pushing a stock charger as far as i have. 30-32psi is all you really want if you want any kind of longevity. Im just lucky Tim LOL

 

[littleredstroker]

Ok. Thanks guys.

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[TyCorr]

It doesn't matter if you can make 50. Anything over 30 is blowing thin, hot air into the motor. People pushing stock chargers farther as a sport is kinda pointless as they are out of useable boost at 30 psi.

 

[littleredstroker]

It doesn't matter if you can make 50. Anything over 30 is blowing thin, hot air into the motor. People pushing stock chargers farther as a sport is kinda pointless as they are out of useable boost at 30 psi.

Huh? Talk to me like I'm dumb. Are you saying the volume of air isn't there at high psi

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