Quiet engine/drive thru tuning

[chevyburnout1]

So I just installed a TS chip in a 7.3, and one of the selections was a "whisper" mode. Basically it dropped the idle and commanded the lowest ICP percentage it could to keep the engine running. Obviously it's still a 7.3 so I wouldn't qualify it as "quiet" but it did drop a few decibels. Was curious if anyone else has built a tune like this to quiet the engine down. So far I've dropped fuel pressure and retarded timing slightly a bit and have had good results. Looking to see if there are any other adjustments, say with pilot, etc, that would help even more. I'm wanting to have this on one of my DSP selections, so that leaves only a few tables to modify unfortunately.

 

[mike diesel]

I need one of these tunes. I eat fast food way to much and sucks shutting the truck off.

 

[PACougar]

This is actually a great idea, who the hell needs 5 different power levels. I'd love to have a "quiet mode"!

 

[chevyburnout1]

This is actually a great idea, who the hell needs 5 different power levels. I'd love to have a "quiet mode"!

That's what I've always thought. I barely use three out of the five positions on my switch.

 

[duratothemax]

low idle rpm, low rail pressure, retarded timing...thats about it.

 

[ty_LBZ]

I'd love to have a 'quiet mode' for fast food, bank drive ups...

 

[clrussell]

Hmmm cool idea...


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[whitetrash21]

I've got a 7.3 and an LBZ. Can't even hear the duramax running after the 7.3 started up. I didn't think it was possible to make a 7.3 quiet

 

[NC-smokinlmm]

I had Rob build a set of tunes that I requested be as quiet as possible for an lb7. They were ridiculously quiet, all you could hear was turbo whistle. Customer was thrilled, no idea how he did it, Rob is a magician with the lb7...

 

[56taskforce]

I've got a 7.3 and an LBZ. Can't even hear the duramax running after the 7.3 started up. I didn't think it was possible to make a 7.3 quiet

Hahaha that is kind of what I was thinking. It anything needs quieting down it is a Power Stroke:rofl:

 

[56taskforce]

But yes I wouldn't mind a quiet tune myself

 

[christopherglenn]

I have had some luck setting the pre injection for 2 mm3, bottom out the fuel pressure, and time main injection at -3 or more, with pre injection at about 0. time it to late, and the main injection climbs, which just makes things louder. Neutral is much quieter then in gear.

 

[THEFERMANATOR]

I played with it before, but got tired of the hazing at idle. Made it stink, and puff some slight white smoke whenever the engine wasn't fully warmed up.

 

[Hot COCOAL]

You fags should be driving a Prius
:roflmao:

It hasn't happened in a while, but when im in a drive thru and they say they can't hear my order or ask me to turn my truck off, i feel like the last 10sec of this skit
https://m.youtube.com/watch?v=Kp5nUQkgWIc

 

[56taskforce]

And then???:hug:

 

[motoking_1990]

and then and then and then and then and then lmao

 

[Hot COCOAL]

And then???:hug:

and then and then and then and then and then lmao

I REFUSE TO PLAY YOUR chrome 4"-12" exhaust tip, facade of power mind games!
:rofl:

 

[motoking_1990]

But and theeeeeeeen it looks sooooo cool bra

 

[OregonDMAX]

Is this the first world problems thread.... I can't shut my truck off it takes too long to start again I WANT MY FOOD NOW :roflmao: :roflmao:

 

[Chevy1925]

i dont know if pilot will do much down there. adding 2 degrees in a couple of my high timing areas helped get rid of my timing rattle i had in my cruise areas though.

fuel, actual timing, and idle would probably have the most affect.

best one i had was sitting in the Mc Ds drive through and i shut my samurai off (open header) and an old 7.3 was behind me. the lady on the mic goes "sir can you please shut your truck off". i yell back "mine is, its the guy behind me". then the "what? i cant hear you" started so i just drove to the window. i did a free coke cause she felt bad for yellin at me to shut my samurai off and it already was :roflmao: