DP Tuner High Idle
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
My trucks will idle-up some when cold and close EBPV when cooooold enough, but I find 1100rpm gets them warm faster. Specifically cabin heat. I rarely do this though. I tend to let it run (in stock tune) for a couple minutes before driving off slowly, then stay below 2k rpm's and 5psi boost until operating temp. (about 4 miles). 
I primarily use hi-idle for running HVAC when parked. Although 'technically' not wet-stacking, the issue becomes low combustion chamber temps during extended idling. This can lead to incomplete combustion/coking over time. LOTS of ambulances, fire trucks, etc have 'hi-idled' for hours and hours at a time thru their lifespan, so it can't be toooo bad to do it this way!
I primarily use hi-idle for running HVAC when parked. Although 'technically' not wet-stacking, the issue becomes low combustion chamber temps during extended idling. This can lead to incomplete combustion/coking over time. LOTS of ambulances, fire trucks, etc have 'hi-idled' for hours and hours at a time thru their lifespan, so it can't be toooo bad to do it this way!
Logistics Pro
Joined: Aug 2005
Posts: 3,884
Likes: 180
From: Morgan Hill, CA
I went big with 1400. Figured if I was going to high idle, just make it high. Never regretted it. I have now some sort of problem with my 2nd old four position switch, same prob as 1st one had. It defaults to Position 1 which is High Idle on my truck. Well if you start it in high idle, it ramps to that RPM in a HURRY much faster than the go pedal ever could. My temp fix seems to be push in parking brake and release it... something to do with the vibration from that usually will fix the problem. Someday I'll get a new setup like the fancy news ones from DP.
I live in the country so high idle sound isn't such a big deal. In a neighborhood? I wouldn't. Depends on if you hate your neighbors I guess.
I live in the country so high idle sound isn't such a big deal. In a neighborhood? I wouldn't. Depends on if you hate your neighbors I guess.
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Postmaster
Joined: Aug 2005
Posts: 2,992
Likes: 2
From: Lancaster, MA
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
Hi-idle and closed EBPV with no muffler will not make friends with neighbors...
I live in campgrounds more than home (unfortunately) and I'm always conscious of how LOUD my truck is at 4:30AM. I always plug in in winter so I can just fire it up and drive away. (I still drive EASY until EOT at operating temp!)Since I burn WVO, I'm planning to get a EBPV open and closed tunes. The problem I have is combustion chamber temps get too cool in winter to even use hi-idle. I NEVER 'idle' on VO, because the truck will smoke after a few minutes - indicating poor combustion (even with 190* VO). 1100 rpms prevents the smoke in summer, but not when its COOOOLD out - gonna try EBPV closed for these conditions!!
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
My trucks will idle-up some when cold and close EBPV when cooooold enough, but I find 1100rpm gets them warm faster. Specifically cabin heat. I rarely do this though. I tend to let it run (in stock tune) for a couple minutes before driving off slowly, then stay below 2k rpm's and 5psi boost until operating temp. (about 4 miles).
I primarily use hi-idle for running HVAC when parked. Although 'technically' not wet-stacking, the issue becomes low combustion chamber temps during extended idling. This can lead to incomplete combustion/coking over time. LOTS of ambulances, fire trucks, etc have 'hi-idled' for hours and hours at a time thru their lifespan, so it can't be toooo bad to do it this way!
I primarily use hi-idle for running HVAC when parked. Although 'technically' not wet-stacking, the issue becomes low combustion chamber temps during extended idling. This can lead to incomplete combustion/coking over time. LOTS of ambulances, fire trucks, etc have 'hi-idled' for hours and hours at a time thru their lifespan, so it can't be toooo bad to do it this way!
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Postmaster
Joined: Aug 2005
Posts: 2,992
Likes: 2
From: Lancaster, MA
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Joined: Sep 2003
Posts: 12,246
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From: Houston, Texas
I went with the 1200rpm option and absolutely love it! It worked great this summer keeping my truck cool and worked even better last winter warming it up faster in during the winter.
Go with the ebpv open to leave yourself an option as opposed to trapping yourself with it closed everytime you high idled.
Go with the ebpv open to leave yourself an option as opposed to trapping yourself with it closed everytime you high idled.
Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
I am late to the party but I wanted to put my 2 cents in. I have currently the 1100 high idle but I originally had 1200. When I had a reburn for my BTS valvebody, Jody must have accidentally put my high idle tune back in as 1100, and I must say, having had both, I MUCH prefer the 1200. 1100 just isn't high enough for my liking and it does come in handy from time time, even though as stated, the truck will go to an 1100 high idle when it's cold from the PCM programming. I like the 1200 because it will warm the truck just a little bit faster, as well as it really works well when having to jump start someone with a dead battery.
Just my .02 gentlemen (and ladies).
Just my .02 gentlemen (and ladies).
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