2.25" exhust...

[Shepherd]

When I got my van it already had 3 inch stainless exaust. Not knowing better I assumed it was stock. I just got lucky.

Trav

[mitch]

yeah, i've got a straight pipe at the moment on the advise of my harley riding dodge cummins driving redneck buddy.. I dont think its too loud but wondering if I need a small amount of back presure or not.

Thomas, did the exhust guys do a full 2.25 system from the turbo.. my guy has a 2" pipe into a 2.25 pipe after the 1st bend.. said he kept kinking the 2.25 pipe trying to bend it.

I'll have a poll at the meet if its too loud....

Also crafted up a free-er flowing intake with a K&N filter, a exhust reducer, and some flex rubber pluming conectors.. will post some phots and how-to soon. crossing my fingers that the K&N is enough filter.. says down to one micron???

Mitch

[Thomas Porter]

Mine's 2.5 all the way from the manifold. Lots of bends, but the old Laotian guy that did mine is a pipe bending ninja.
Sounds good. Cost $400 including the magnaflow muffler and stainless tip.
Thomas

[asorensen]

Not being fully convinced about the EGR valve I went digging and came across this thread.

http://www.pocuk.com/forums/viewtopic.p ... sc&start=0

I read all of it and found it to be a very interesting read.
At this point I am only going to clean my valve and make sure it is operating correctly.

Andy

[Skeeter]

:D Mitch where did you get the stainless 2 1/2 exhaust for $250 I want to do that to mine. thanks Skeeter

[Thomas Porter]

I'm with you Andy.
Just going to clean mine up, put some new plugs and wires in see what happens.
Mine only smokes in the morning, for about two of three minutes, and only if it has been below zero.
Thomas

[mitch]

no stainless.. just cheapo steel. pretty ugly job, but it seems to work. ABC auto main & 6th.. I think??

Mitch

[josh]

I just got a 2.5" exhaust too, but I got a cherrybomb slapped on the end of it before it exited the side. Cost just shy of $250 for everything. Has a real good rumble and a nice turbo whistle. Here's a few pics...





So what do you think? I like the fact I can keep an eye on whether or not i am blowing black smoke... and sounds like a real tractor.

Josh

[BCDelica]

Gee Josh, how much attention is your rig attracting now! Looks good. 8)

Did you put it together?

Cheers,
Kev

[torchard]

This come out of the posts re pryrometer. Just how much of an issue is heat w/ these things? I haven't seen much that suggests they are prone to overheating.

--T

[josh]

Gee Josh, how much attention is your rig attracting now! Looks good. 8)

Did you put it together?

Cheers,
Kev

I got the exhaust shop to do the work... and it does seem to get noticed even more now! I sure enjoy it anyhow.

This come out of the posts re pryrometer. Just how much of an issue is heat w/ these things? I haven't seen much that suggests they are prone to overheating.

--T

I do not think they are prone to overheating, but with the amount of up and down mountains and logging road driving I do, I figured the exhaust upgrade couldn't hurt. I think I look at the temperature gauge more than I do the road (just in case).

Josh

[Nisseman]

I just thought I'd offer up my two bits on EGR.
Exhaust gas recirculation allows a certain amount of exhaust gas back into the intake when under load. The purpose is to introduce an inert gas into the air mixture to lower combustion temperatures. This is done to lower nitrogen oxides (green house gas) in your exhaust. The purpose of EGR is not to cool your exhaust gas to save your cylinder head, however EGR engines will be tuned accordingly and I do agree that disabling your EGR could result in excessive combustion temperatures. This all has to do with emissions. Diesels have had their fuel injection pressures and combustion temperatures increased over the years to improve combustion and remove soot, this led to increased Nox , the next step was to introduce exhaust gas to lower Nox or in some engines intake valve actuators are used to delay intake valve closing ,there by reducing the effective compression stroke and also lowering combustion temperatures. The next step in 2007 and 2010 emissions is to add a diesel particulate filter and some type of regeneration device to periodically clean out the particulate filter. These are the "clean diesels" that are coming out in 07-08. The thing to remember about EGR is that we're talking about allowing dirty un-filtered sooty exhaust back into your engine, not exactly healthy for your rings and cylinder walls. One teaspoon of "dust/dirt" is enough to do in a diesel engine. So no matter what any engine manufatcurer tells you, EGR may be necessary but it is not doing engine life any favours.
Man I'm long winded when I get going.

[dfnder]

Interesting I'm bumping this thread because I wanted to bookmark it and for some reason I couldn't.

Cheers

[delicat]

Well, if some of you are interested in blocking your EGR I have a few plates I bought from the UK club when I was out there last month...