increaded boost
Thread Starter
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Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
increaded boost
Alright guys, some of yuo may have remembered when i lost my turbo. April, 2011, lost it, get'n on it on the freeway. I believe it was from a lack of install on my part, installing the w.w. Since then, it seems my turbo CAN NOT put out over 16psi and thats with the redline hooked up. Prior to the turbo letting go, i was run'n the 10k mod. Since then, with new/rebuilt turbo, hadn't gave that mod a thought. Well, yesterday, for shiats, i installed the 10k resistor, in the plug. The truck didnt have the "lopy" idle, but throttle response was crisp. Damn, it sounded alive. Went on my way, proceeded to enter the freeway, and i decided to see, what the truck got. to my surpirise, with redline disconnected, she banged to 22psi, and without a miss. I mean, damn needle just poped up to that amount, and seemed that i probably still had some pedal left.
SO, my question is, is this a sign..(not run'n the resistor), that my IPR is bad, ICP, combination of both, HPOP bad....? Thanks.
SO, my question is, is this a sign..(not run'n the resistor), that my IPR is bad, ICP, combination of both, HPOP bad....? Thanks.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Pro's could be slightly increased throttle response, Con's would be an increase in back/drive pressure, that if too much would cause a pressure differential in the turbo between the turbine and compressor side and break the turbo.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Alright guys, some of yuo may have remembered when i lost my turbo. April, 2011, lost it, get'n on it on the freeway. I believe it was from a lack of install on my part, installing the w.w. Since then, it seems my turbo CAN NOT put out over 16psi and thats with the redline hooked up. Prior to the turbo letting go, i was run'n the 10k mod. Since then, with new/rebuilt turbo, hadn't gave that mod a thought. Well, yesterday, for shiats, i installed the 10k resistor, in the plug. The truck didnt have the "lopy" idle, but throttle response was crisp. Damn, it sounded alive. Went on my way, proceeded to enter the freeway, and i decided to see, what the truck got. to my surpirise, with redline disconnected, she banged to 22psi, and without a miss. I mean, damn needle just poped up to that amount, and seemed that i probably still had some pedal left.
SO, my question is, is this a sign..(not run'n the resistor), that my IPR is bad, ICP, combination of both, HPOP bad....? Thanks.
SO, my question is, is this a sign..(not run'n the resistor), that my IPR is bad, ICP, combination of both, HPOP bad....? Thanks.
Postmaster
Joined: Jul 2006
Posts: 4,993
Likes: 2
From: Bend, OR
Are you running any kind of tuner now?
When you add the ICP mod, 10k or otherwise your picking up HP because the PCM boosts the ICP believing its low... Your truck sounds normal if your not running a tuner.
When you add the ICP mod, 10k or otherwise your picking up HP because the PCM boosts the ICP believing its low... Your truck sounds normal if your not running a tuner.
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Elder User
Joined: Jul 2012
Posts: 947
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From: Glen Rose, Texas
Doesnt sound like something else I want to fix. Ill leave it as is.
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Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
You could always just tighten it up, by turning the actuator rod, then it still activates, just not until a higher PSI.
Elder User
Joined: Jul 2012
Posts: 947
Likes: 0
From: Glen Rose, Texas
Must be talking in a different language, cause I have no clue what your talking about. Haha. No I really know nothing about this truck, thats why im on this site all day reading trying to figure things out. Since I have had the truck the list of things I have done has been oil change, tie rod, leveling kit, blocks, fuel filter, and just today new trans cooler. All those are pretty basic. Still a little intimadated to start messing with things I dont know.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Must be talking in a different language, cause I have no clue what your talking about. Haha. No I really know nothing about this truck, thats why im on this site all day reading trying to figure things out. Since I have had the truck the list of things I have done has been oil change, tie rod, leveling kit, blocks, fuel filter, and just today new trans cooler. All those are pretty basic. Still a little intimadated to start messing with things I dont know.
- The red line (plastic tube) to the turbo wastegate actuator is disabled. This keeps the computer from opening the wastegate and dumping the turbo's turbine drive pressure out the exhaust. This also means the mechanical spring that opens at turbo max had better work - CSIPSD can explain this better than I... I'm still a newb.
- The Air Intake Heater and all its wires are gone (behind the green plastic tube, on the left).
- My turbo boost sensor is mounted directly after the turbo. Most people install their sensor on the left side of the "spider", where I took the AIH out... or on a tube to the MAP sensor. Their way sees what boost the engine gets, my (accidental) way sees what boost the turbo is generating - the readings are not the same. After great thought, I like my way better because I know when my turbo has reached it's limits.
Thread Starter
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Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
..sorry man, i no, bad time.Alrighty...you really think this is not out of the norm? I was thinking something was wrong with my gauge until the otherday, seeing 20+, with redline off and 10k resistor installed. Mind you, AFTER the turbo went sky high, i WAS seeing 17-18psi with w.w., and redline hooked up. I had installed the 10k for towing purposes, but try'n to prove my truck to "family"..(knocking the sounds, diesels make and its power), i had to prove otherwise. Anyway, my trucks' a snail. I can tell the difference. It doesnt move until 1600rpm, and boost CRREEEEEPPPPPS to the 10-11psi wall, 14-15psi wiht r/l disconnected. NOW, with the 10k, the damn needle is on a springboard, 10psi REAL QUICK, pulling up to the higher numbers. Its comparable to TUGLYS video and SPOONERS videos, of their boost movement...
Thread Starter
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Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
God enough for me, thanks Al.
Post Fiend
Joined: May 2009
Posts: 5,470
Likes: 3
From: Pea Ridge, AR
Must be talking in a different language, cause I have no clue what your talking about. Haha. No I really know nothing about this truck, thats why im on this site all day reading trying to figure things out. Since I have had the truck the list of things I have done has been oil change, tie rod, leveling kit, blocks, fuel filter, and just today new trans cooler. All those are pretty basic. Still a little intimadated to start messing with things I dont know.
If you remove the small e-clip holding the rod onto the wastegate at the turbo, and then shorten the rod, about 7 turns is the norm. You have shortened the wastegate, allowing for the activation by the diaphragm to happen at a later(higher) point.
Here is a video showing the actuation of the wastegate.