sounds easier to skin the trailer than to modify the exhaust. it would protect the boat from rocks as well.
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sounds easier to skin the trailer than to modify the exhaust. it would protect the boat from rocks as well.
I can only imagine how bad that 5.9 drones at highway speed unload with the current exhaust, I use to have a stack on my f250 but would never do one again. Absolutely too loud especially under load. I think a exhaust modification is needed regardless but that's only my opinion.
Wrap the boat in satin black......
My 06 will roll coal but only when throttle is 75% or greater. It has factory tunes and will get 21mpg on the hwy. Add a less aggressive program dual 5" out the rear and be done with the droaning. Your ears will appreciate it. I'm loosing my hearing for all of the years listing to the 5.9 under the hood and open exhaust.
I have been running 5.9l Cummins in everything since 2001 and never had much issue with any of them. Tunes are the biggest killers of trans and injectors imo so I leave everything more less factory. I do although spin the star wheel all the way forward on the 12 valves for better get up and go.
Yeah I never understood the guys running around with a hood stack, understandable for a full time pulling truck, but that's about it. I did have two 7in miter stacks in the bed of the truck 8 years ago, before everyone was doing it, became to much like everyone else AND most of all the wife hated it. Pulling a load it was like having one of those 4ft tall shop fans on high sitting on the center arm rest. I might try extending the piping to dump right in front of the tires but I don't think it will solve the problem and will be just as loud. Once the turbo lights I have no smoke at all. It is a HTT 62/71/14 and cleans up very well, just a little doggy if the rpms are down. twins.....one day, a little longer away now that I got the SSV.Quote:
Originally Posted by bens250ex
I'm interested in what you mean skin the trailer? More info would be awesome, I am always stressed about the rocks to! every time I drive through gravel I pull over and spend 10 min popping out all the little rocks stuck between the lugs.Quote:
Originally Posted by 2500HD
I always wanted a black supra! I'm only getting 12-14 towning and 14-17 unloaded, 21 would be great but I've got my 50+mpg TDI for my DD. I might have to bump down the tune, but not after I give the exhaust routing a honest attempt. This is my first and last cummins, Had it for over 8 years, and its payed for and I got a free truck out of the deal. Just wish now I could go back to stock ride height. Thanks for the input, loosing the drone will be nice.
Bowz
We have a guy runnin around up here with a supreme that took diamond plating, welded it to the front of the trailer. he matched the angle of the transom and wrapped it around both sides of the boat for rock protection.
it's very similar to these
http://www.montanarockguards.com/wp-...k/p1013022.jpg
http://www.montanarockguards.com/wp-...k/p1013187.jpg
Simple solution, first get your truck tuned right. You should not be putting out plumes of dark sooty smoke. You need either less fuel or more air, pick one or a bit of both. Keeping a standard low exhaust you can run yours farther back and exit in front of the rear tire at about 90*. Don't go ridiculous on size, it looks dumb and does not help power. 3" is adequate, 3.5" is plenty, or whatever your downpipe size if that's bigger. Your restriction is at the turbo , making it bigger farther downstream does not help. Maintaining this size will help keep velocity up at the tip even after the gasses have cooled some, with a 90* exit this will blow farther away from the trailer. Alternatively you could do a stack high enough and and exiting at a 45* angle or so behind and to the side. Single stack of a normal (non-ricer) size in corner of bed with heat shield, and won't affect what you can put in the bed too much and will get the exhaust away from your trailer. I don't understand the 5" duals comment, does this engine have compound turbos with 5" downpipes? If not, you're going about the exhaust wrong.
Personally I've been running a straight pipe ending at the back of the cab just inside the frame rail. I put a 38 gal rear tank in and the exhaust interfered so off it came. Eventually I'll get around to extending it and it'll come out at an angle right in front of the rear tire. I don't want to deal with bending large pipe for clearance around my larger tank/axle/spring/etc.. I have not had an issue with the boat getting sooty. The underside of the truck is sooty though, which is my main reason for wanting the exhaust to exit out the side clear of everything. I don't have my pump cranked way up though, so getting into the pump working it hard it'll smoke a little until it's spooled up but then just a haze or very light smoke if any. A bit of smoke while it spools should not gonna cover the boat in soot.
I like it, I'm about a 1000 miles away right now at HVAC tech school, but when I get back I will mock something up and see if I like it. Thanks for the pictures! It looks like they are a pre-fabed bolt up system...Quote:
Originally Posted by 2500HD
Who said I was putting out plumes of dark sooty smoke? Thanks for the information on how a diesel engine works, I guess I missed that part in the 10 years I have been a diesel technician. From 10HP air cooled Yandmars to 2600hp 16cyl CAT's I have a little experience with diesel engines. As far as size, we are not talking about 1.9L diesel in my car, 3in HA, a stock exhaust for a 5.9L cummins in 2005 was 4IN, that is with a smaller turbo. Pretty sure if I put a 3 or a 3.5in exhaust on my truck and went back to stock programing, I wouldn't have a running truck for very long. I'm looking for velocity at the tip for what reason? Pretty sure what ever velocity my trucks exhaust could ever have will never overcome the wind going past the tip at 70MPH. As far as stacks, how ever you do stacks its "rice" as you call it. I had them in my younger days before everyone was doing it. What is there to misunderstand about my duals comment? No the truck doesn't have compounds, (one day it will) and obviously you don't have much knowledge about my truck BUT I have installed a 5" down pipe.Quote:
Originally Posted by cadunkle
To clear some things up, I don't have a problem with the boat getting all sooty when I am going to my normal boating spots around town, but rather when I'm doing 1,000+ mile road trips. I can understand some people probably don't have that many miles on there 10 year old trailer but for me, I do plan on traveling 800-1200 miles several times a season.
Bowz
Where's that popcorn?