Things I'm doing to improve boost (pics)

luvrbus · May 14, 2017, 08:25:58 PM

Those 2 surface are a machined fit no gaskets or rings, you should have no soot there unless you have a slight case of the 2 not matching like 1 or the other is warped from the heat

sledhead · May 15, 2017, 05:15:58 AM

after I had my 6v92ta rebuilt and I reinstalled it in the coach it had black smoke ? I called the guys that rebuilt it and they said bring it to them . I did , they could not find the problem so I had to leave the coach with them and they pulled the engine out and put it on a dino and then found that it was a bad turbo ? they then reinstalled the engine with a new turbo and all was good at no charge to me ! really good guys . I do not know what was wrong with the turbo

dave

Scott & Heather · May 15, 2017, 12:03:51 PM

Why does everything have to be complicated. Sigh. Ok. I'll clean up the sooted area, install the new vband coupling clamp and see how it looks after driving. Thanks for the diagram. Nice exploded view of the bits and pieces.

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Jim Eh. · May 15, 2017, 04:27:50 PM

You could always lift the rad cap and drive an 8V92 under it.

eagle19952 · May 15, 2017, 05:08:46 PM

Quote from: Jim Eh. on May 15, 2017, 04:27:50 PM
You could always lift the rad cap and drive an 8V92 under it.

to go bigger he'd have to go 12v92 ... which is still on the drawing board

Scott & Heather · May 15, 2017, 05:49:08 PM

Quote from: eagle19952 on May 15, 2017, 05:08:46 PM
to go bigger he'd have to go 12v92 ... which is still on the drawing board

No Don...no it's not. I can't find a place in the rumpus of my bus to fit 8 radiators....so they can keep their 12v92 thank you very much lol. I can't imagine another 4 headaches if you get my drift.....

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blue_goose · May 16, 2017, 05:14:25 AM

If you want to keep it simple on the muffler take the pipe off and run without it to see if there is a difference. NO COST
Jack

eagle19952 · May 16, 2017, 01:32:01 PM

Quote from: Scott & Heather on May 15, 2017, 05:49:08 PM
No Don...no it's not. I can't find a place in the rumpus of my bus to fit 8 radiators....so they can keep their 12v92 thank you very much lol. I can't imagine another 4 headaches if you get my drift.....

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i guess my point was missed...replacing an 8v92 with an 8v92 was being suggested

Scott & Heather · May 16, 2017, 03:18:58 PM

Intake is completely disassembled and waiting for my new ECO 1550 CFM air filter/housing. Also ordered a 5" aeroturbine stainless muffler like Sean has. I heard his and saw it in action and liked it. Also ordered a new turbo boost MAP sensor genuine part. Replacing the 1/4" hose with a fresh one. Old muffler is removed and waiting for new one to arrive to install. CLIFF: how do I service the bypass valve. Where exactly is it located?

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luvrbus · May 16, 2017, 03:56:28 PM

It is on the back of the blower about 1-1/2 round with a 1/4 inch hose.has 1 bolt and clap holding take the bolt and clamp off it pops out clean good and be sure it moves freely.One thing we keep missing is check the fuel pump pressure a DDEC takes a larger pump than the MUI engines fwiw

eagle19952 · May 16, 2017, 04:32:34 PM

were i u ... i would retain my air cleaner...i seriously doubt that there in lies your trouble.

Scott & Heather · May 16, 2017, 05:02:20 PM

I will retain. But this new setup will be much higher flowing and simpler. With the restroom tanks removed it's a straight shot to the turbo versus a 180 degree U bend from the turbo to the air cleaner on the drivers side of the engine.

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eagle19952 · May 16, 2017, 06:20:25 PM

Quote from: Scott & Heather on May 16, 2017, 05:02:20 PM
I will retain. But this new setup will be much higher flowing and simpler. With the restroom tanks removed it's a straight shot to the turbo versus a 180 degree U bend from the turbo to the air cleaner on the drivers side of the engine.

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imo...u are making to many changes without checking the results...leave the current muffler and test drive the new filter. personally, i would have changed the muffler first..

Scott & Heather · May 16, 2017, 10:15:36 PM

You have a great point. Parts changing and shot gunning isn't going to tell me exactly what has been causing my symptoms. I guess I'm pressed for time because I head out on a lot of miles June 10 so I was hoping to just open the exhaust, help her get more air and breathe better since everyone told me the stock air cleaner system doesn't support my 500hp setting very well, and a $60 turbo boost map sensor seemed like an easy part change to throw into the mix.

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luvrbus · May 17, 2017, 07:01:13 AM

Scott,seems like when people change engines there is a lot of throwing parts at a DDEC based 8v92 engine,hope you get it worked out