04 3500 with fleece cheetah turbo. - Dodge Cummins Diesel Forum
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post #1 of 9 (permalink) Old 01-25-2020, 07:38 PM Thread Starter
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04 3500 with fleece cheetah turbo.

I installed a fleece cheetah turbo and according to fleece it should build between 40-45 psi. I’m only building 28psi. Motor is stock and I’m running a bully dog gt tuner. Any info helps. Thanks

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post #2 of 9 (permalink) Old 01-25-2020, 09:49 PM
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Your best option here would be to contact fleece and explaining your issue/concerns.

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post #3 of 9 (permalink) Old 01-25-2020, 09:51 PM
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Do you have a 0-60 or 0-100 boost gauge or an ecm unlock gauge? Stock ecm will only read 37 psi max but if you’re only hitting 28 my guess is you don’t have enough fueling or you have a slight leak somewhere. Stock fueling trucks can still pull 40psi with custom tuning but I’m not sure how aggressive a bullydog is. Check for boost leaks though 28 is pretty low with a tuner

-David- 04 QCSB 4x4 Toyo MT 35x12.5x17, Firepunk Comp 1 built trans, Smarty UDC from Lavon @firepunk, Airaid, edge cs, 4in TBE, FASS 150, Fleece Cp3k, AGP 63/68/12
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post #4 of 9 (permalink) Old 01-25-2020, 11:31 PM Thread Starter
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The boost gauge is just a digital read out on the tuner monitor. Ill check it for leaks. The bully dog isnt a power house of a tuner. If I dont find anything wrong then Ill contact fleece or a local shop and have it checked out. Thanks.
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post #5 of 9 (permalink) Old 01-26-2020, 03:36 PM
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Don't know the answer but just a thought.

If the fleece default sets the wastegate to 28psi and expects tuning with the solenoid to stay shut and let it build to 40-45psi then your solenoid may be bad and stuck open or your tuning isn't allowing the solenoid to stay shut.

Can try clamping the line from the solenoid to the actuator and see if it builds 40-45psi.

Like mentioned though, the MAP doesn't read that high so using a digital gauge I would only run it hard enough to see it goes over 28 and stop and figure out the issue or put in an actual boost gauge to monitor.

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post #6 of 9 (permalink) Old 01-26-2020, 05:17 PM Thread Starter
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Originally Posted by nosympathy View Post
Don't know the answer but just a thought.

If the fleece default sets the wastegate to 28psi and expects tuning with the solenoid to stay shut and let it build to 40-45psi then your solenoid may be bad and stuck open or your tuning isn't allowing the solenoid to stay shut.

Can try clamping the line from the solenoid to the actuator and see if it builds 40-45psi.

Like mentioned though, the MAP doesn't read that high so using a digital gauge I would only run it hard enough to see it goes over 28 and stop and figure out the issue or put in an actual boost gauge to monitor.
I’ll try that and see what happens. I’ll look into putting an actual boost guage on it as well. Thanks.
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post #7 of 9 (permalink) Old 01-26-2020, 10:56 PM
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Your only reading what the ecm can read, you need a aftermarket boost gauge

06 4dr,dynamic stg 4,64.5/73/.91,steed speed,anarchy EFi,DDP 150% overs,fleece dual cp3s,Fleece bypass,Fass 165,ARP 425s,Manton springs/pushrods,pac brake,6" Carli,long arms, king 2.5's,WFO traction bars,35s
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post #8 of 9 (permalink) Old 01-26-2020, 11:01 PM Thread Starter
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Your only reading what the ecm can read, you need a aftermarket boost gauge
I contacted fleece and that was one of the things they told me. They also said to check for boost leaks. I already ordered a boost gauge so I will see if it reads different after I get it installed.
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post #9 of 9 (permalink) Old 01-26-2020, 11:13 PM
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Double post..

06 4dr,dynamic stg 4,64.5/73/.91,steed speed,anarchy EFi,DDP 150% overs,fleece dual cp3s,Fleece bypass,Fass 165,ARP 425s,Manton springs/pushrods,pac brake,6" Carli,long arms, king 2.5's,WFO traction bars,35s
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