exhaust project

[turf]

guess what came in the mail today?




i was browsing the web last friday night and saw a side pipe for a tc2000. well, i had forgotten all about it until i got home today. so it was kind of a surprise.

anyway, when the snow melts i got a project.

it's supposed to fit right behind the muffler and exit in front of the rear tire. i'm going to see if i can delete the muffler and move up the pipe accordingly.

i want to keep my trailer from turning black and i'm hoping cutting off 20' of pipe helps a bit in hp too.

[PNW_Steve]

Originally Posted by turf

i want to keep my trailer from turning black .

I get that!

I towed a white Accord behind an 8v71 equipped RE for a couple of years. Well... It was white when I bought it.... I never managed to keep it clean.

[Booyah45828]

You probably won't see much in hp gain. The soot should for sure go away. When you pull a trailer with a bus the air between them kind of becomes a dead zone which is why they become black. A side pipe will be putting the soot out into moving air so it should stay cleaner, at least mine stays pretty clean even though it blows black.

[turf]

i towed a friend's car on my skooliepalooza misadventure and i felt pretty bad for the black stain i left on her driver side headlight and bumper. soot on plastic doesnt clean to easy.



thats what made me decide to change the exhaust.

last week after googling, i found this website:
Auto Jet Muffler Corporation | School Bus Exhaust

and they already had it in stock. they included a piece (in the box) for me to fit the end elsewhere too. i think the pipe is 4" O.D. and the extra piece is a chunk of 4" I.D.

i drug the pipe under the bus yesterday to see how it was going to fit, and my hope of everything being easy. i'm not sure how its going to work now.

my obstacle is the generator on the drivers side where the pipe will exit. you can see the generator enclosure between the wheels here:


the pipe looks like it may clip the corner of the gen box as is. moving the pipe back a few inches may solve the problem., i was hoping to delete the muffler but dont think the measurements will line up close enough to do that.

today as cold as it is, this one may go to the mechanic shop. there is a diesel shop near me i want to try anyway

[turf]

Originally Posted by Booyah45828

the air between them kind of becomes a dead zone

what are opinions on the glue on air vortex generators? or an wing for the top? i think the wings just help keep the back windows cleaner.

https://www.raneystruckparts.com/vor...AaAi6YEALw_wcB

[Booyah45828]

I'm not really following your description of the pipe issues.

The pipe is usually 4 inch, and when we do exhaust, we usually use band clamps. They come in straight variety so you can literally fasten two blunt end pieces together, or for slip fit connections, they have a stepped variety too. Doing it this way you can essentially fabricate any exhaust that you would like with the right bends and straight sections. No welding is required, just a hacksaw to cut the pieces.

Here is an interesting read about vortex generators and semi trucks.
https://www.sciencedirect.com/scienc...67610516302537

Vortex generators can help a little, but there will always be a dead zone behind a blunt rear end going through the air. There's no real good way to fix it.

Best bet is to reroute the exhaust to the side, or turn the fuel down