Hello today i unistalled my mouthpiece and and shaved it down inside. I removed some material from the outside and rounded the square edges removing as much material as i could. I reinstalled and the aftermath is quite noticeable. First, the turbo sounds much better and louder, cruising down the highway the EGT's have dropped about 90 degrees. Boost running down the highway has increase about 1 1/2 psi. You can tell the turbo is liking all the extra air it is getting. At wide open throttle it seems to hold the boost longer and spool quicker. There are minor changes in the get up and go power. The engine may run a shade cooler as well with what i could tell. My truck has stage 2 intake, full 4 inch exhaust, egr blocker, fingerstick, boost and pyro guages and i was able to feel a slight difference in power. The truck sounds much better now to. Last thing on the list is a Turbo resonator plug if i can ever find a hardware store that has one. For anyone thinking about doing this i would reccommend it. I modded my stock mouthpiece and it turned out great. Cost me nothiong to do with the right tools.
I did the same to my stock mouth piece and finally stepped up and bought a LBZ unit. There was a more noticable increace after both. Now you got all that extra power and your turbo will also last longer as a byproduct. congrats man!
__________________ 05' LLY CC/SB, PPE Standard, MBRP SS 4", BD Power Manifold, Autometer Phantom 2 Pyro and Boost, Kennedy fingered n plugged, cat grew legs, Belltech 1/3 drop, Michelin LTX M/S 265/75/16, Homemade 2-stage Water/Methanol w/ 220psi pump.
KILLERBEE Designed Intake piece- Everyone needs one of these!
Rock it till it sounds expensive!
Dont argue with a moron in public....Others may be confused on whos who.
The LB7s dont have the same style mouthpiece as the later dmax motors have. The LB7s mouth piece is thought to be "perfect" from the factory although there are companys that do offer the service.
__________________ 05' LLY CC/SB, PPE Standard, MBRP SS 4", BD Power Manifold, Autometer Phantom 2 Pyro and Boost, Kennedy fingered n plugged, cat grew legs, Belltech 1/3 drop, Michelin LTX M/S 265/75/16, Homemade 2-stage Water/Methanol w/ 220psi pump.
KILLERBEE Designed Intake piece- Everyone needs one of these!
Rock it till it sounds expensive!
Dont argue with a moron in public....Others may be confused on whos who.
It is hard to tell, I don't know your specific application.
A good IAT dampening CAI is important here. I have 112 F here, and empty I never here the fan come on, ever, even stop-go. That is with the Shroud/seal kit, IOH kit, and my custom tuning. That makes a difference also.
__________________ Michael, 2500HD LLY, Systems Engineer, EMAIL
My truck is totally stock except for lbz mp. Fan runs a lot in current heat wave empty. When I pulled my RV friday I don't believe it ever quit running. Traffic very bad too. Humidity was very high and temps around 100. Heat index around 107. Engine and tranny temps were ok. Tires are 245X85.
Need to read why your fan stays on, once it comes on. Feedback cycle linked to the fan heats up IAT, which in turn creates more heat. Bad "warm" intake design is complicit.
The high boost stock tuning is not helping at all. I do "wastegate" tuning to help with this.
My truck is totally stock except for lbz mp. Fan runs a lot in current heat wave empty. When I pulled my RV friday I don't believe it ever quit running. Traffic very bad too. Humidity was very high and temps around 100. Heat index around 107. Engine and tranny temps were ok. Tires are 245X85.
Mine behaved just the same way 4 years ago. You are not going to get rid of the fan in traffic. It is a heat soak thing, and for that matter ALL vehicles pretty much do what you describe. There is no motion airflow taking the heat away.
__________________ Michael, 2500HD LLY, Systems Engineer, EMAIL
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