Things I'm doing to improve boost (pics)

[Scott & Heather]

John, that's what reliabuilt put on there in 2002 and it's worked this long just fine. I just wanted to freshen the hose. But the plastic push fitting is identical to the old one. 

Installed the new turbo boost sensor/map sensor today too. Cleaned bypass valve is back in with oring and high temp RTV. Next week the new 1550 CFM air filter goes in and the new aero high flow exhaust goes on.


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[Geoff]

Scott--
Did you find soot in the air inlet hose to the turbo?  And are there any exhaust leaks at the turbo or exhaust system?  You have low turbo pressure and any leaks can be part of the problem.

--Geoff

[Scott & Heather]

Geoff, there wasn't soot in the air inlet hose. In fact the cold side of the turbo looks really good on the inside. I don't have any leaks or any soot at all around the manifolds, nor at the exhaust union clamps that go from the manifolds to the hot side of the turbo. The only soot I've seen is at the clamp area where the exhaust turbine mates to the intake turbine. But everyone is saying there shouldn't be soot there. I removed the muffler and it does have a ton of soot buildup and what looks like creosote buildup too. Not sure what that is but in thinking the muffler was somewhat clogged


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[Scott & Heather]

Aero Turbine Muffler installed. Sounds juicy. Don't worry, I'll be trimming the fiberglass bumper and adding a heat shield.
https://youtu.be/w4nI3y-YXiE


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[muldoonman]

Sounds nice. Gonna do that with mine. Take that 100 lb. piece of junk off.

[Scott & Heather]

Thanks to Sean Shanks for letting me hear his on his 6v92 eagle. Hopefully the drone isn't too loud driving down the road


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[lostagain]

I have a Donaldson resonator which is quite loud, but we don't hear it driving down the highway. Only when the sound bounces off a concrete barrier beside the road, or in a tunnel, etc.'

JC

[Geoff]

I don't like loud mufflers.  If you have one on your bus, you are sitting 35-40 away you won't hear it with all the insulation, cabinets, etc., But the people outside will sure hear it.  I have the oem muffler on mine and the surviving bitty behind my house thinks it's too loud.  She hates it when I have to set the top no load on a Detroit.  I had to pull the exhaust manifolds off mine and start it to find the smoking clyinder then to check compression.  She called the sheriff. 

--Geoff

[Scott & Heather]

Trust me I don't like them loud either Geoff. This is my "let's get the bus running right" experiment since my old muffler was clogged with creosote soot and had three holes rusting in it.


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[bevans6]

When I fired mine up for the first time with just the manifolds on, all my neighbours came over - not to complain, but to enjoy the happy noise!  I have one of those resonators too, I get no complaints about noise.  If you have a turbo, they are just fine.  If you had a NA it would be a little loud.

[Scott & Heather]

It's honestly not super loud. It's throaty. But not loud. Running without it is loud. Fitting up new intake piping and air filter today. I asked this elsewhere, but can someone tell me definitively if 1550 CFM of air is enough for a 500HP 8V92TA?


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[luvrbus]

Yep the book says 1350 cfm,check the Donaldson site for flow rate it will give you the required exhaust and intake flow rate ,also has the EGT chart for the flow

[windtrader]

1500 cfm -  that is awesome amount of air moving through the motor. Hate to think how much pollution those things belch out. 

[Scott & Heather]

Ok so
My 1550 CFM eco should do the trick. Thanks Cliff. I just needed to make sure


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[buswarrior]

Think about wrapping the intake pipe to the turbo to keep it as cool as you can before the boost?

happy coaching!
buswarrior