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6.0L Performance Parts Discussion What has or has not worked for you?

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  #1  
Old 03-30-2009, 11:18 AM
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Boost inquiry

Since I bought the 2004 PSD I currently own, I have never seen the boost go above 19psi. I read that some of you guys are pushing 20-30psi.

How is this possible?

I am running an old school Superchips 1704, at W.O.T I can't get more than 18-19psi maximum. Is something wrong with my turbo?
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Old 03-30-2009, 11:25 AM
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No its jut because your superchip don't push your truck as hard as other tunes.
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Old 03-30-2009, 11:31 AM
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It puts out pretty good power.

With a stock engine (no ARP's) 4" exhaust straight piped and gauges what is a safe BOOST level?
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Old 03-30-2009, 11:33 AM
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Well really on a 6.0 you can never tell. Its just always good to have STUDS put in. Im sure someone will come along who knows a little more about 6.0s
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Old 03-30-2009, 01:00 PM
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you might have a leak somewere, intercooler boot or somthing, or depending on your milage your turbo may need to be cleaned because the vanes need to be cleaned. Stock i was running around 24 at max bost now with the sct im running around 30 at half throttle
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Old 03-30-2009, 05:10 PM
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I've got 43k on the truck. I just replaced two of the silicone boots and the main elbow that feeds the inlet side of the turbo. I dno't know if there are any leaks. The remaining boots look good and I doubt my intercooler is leaking.

I wonder if the HP tune on my old school Superchips 1704 tuner "limits" the boost to stay below 20psi?????

Is there a step by step instructional thread on how to clean the turbo vanes located on this site, anyone can direct me too?
Thanks
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Old 03-30-2009, 05:14 PM
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with just 4" exhaust I was getting around 25, now with a superchip tuner in tow safe mode I got 33, pulling my camper going up a hill
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Old 03-30-2009, 08:14 PM
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Hmmmmm... any one else have a clue...I know I don't.
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Old 03-31-2009, 01:32 PM
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My truck makes 24 25 stock at W.O.T and with the Innovative extreme street it will hit 30 at half throttle but only about 20 at W.O.T
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Old 03-31-2009, 05:16 PM
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Hmmmm...I double checked today, everything seems to be in good working order.

I read on a site that offers performance products that the EGR can possibly hinder "boost" by leaking internally. Not sure if it's true.

I am doing my EGR cooler/valve delete from FCDP soon. Perhaps once the up-pipe is strictly feeding the turbo it will boost properly.

I am also servicing/cleaning my turbo once I have it out. Is there a chance the "lack of" maintenance to the turbo on my part has something to do with it?
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