Cummins EGT 4" Stainless test

[Meat_]

I picked up a Juice with Attitude and a 4" Stainless AFE exhaust from Wayne and I decided to do a before and after (exhaust) EGT test with a load up a hill.

Here's the new and old exhaust



It came with a Magnaflow muffler, the bends were very well done and the hangers worked well but the flairs on the two straight pieces were not flairy enough I was disappointed with the sound of the exhaust until I made a tight right turn while accelerating.... looks like I'll be needing a turn down

Anyway

Test 1 Stock exhaust
Railroad hill (big climb on SR 73 bound for 5mp)
7,980lbs in tow
Juice on 0 (stock)
Tranny locked in 3rd
Speed 57mph
EGT 1134~1164


Test 2 4" Stainless
Railroad hill (big climb on SR 73 bound for 5mp)
7,980lbs in tow
Juice on 0 (stock)
Tranny locked in 3rd
Speed 57mph
EGT 957~1084 Most of the time it was around 1060 but would drop off fast on the few short less hilly parts.

 

[Herzog]

I'll vouch for close to the same results. Lower EGT's with fast drop off. Very cool! Thanks for the hard data.

 

[Tacoma]

so... what are you doing with that old exhaust??????

There's a truck in my driveway that needs pipes.

 

[BioNuke1]

so... what are you doing with that old exhaust??????

my jeep needs a rollcage

 

[Meat_]

so... what are you doing with that old exhaust??????

There's a truck in my driveway that needs pipes.

Heh, you don't want that....

 

[Tacoma]

is it all screwed up???

 

[benjy]

we're talking Exhaust Gas Temp, right? the benefit of cooler exhaust is...? also, what kind of temp sensor is used to get these readings?

 

[timpanogos]

When I was a kid, my grand-dad had an old Peterbuilt. Hauled around 30 ton back-hoes etc with it. It had two gear boxes – don’t remember, like 4x5 for 20 gears or so. Anyway, he would shift gears based on stack temperatures (verses rpm)

Hope that clears it all up

 

[benjy]

Hope that clears it all up

sure does! this helped a little, too

 

[mbryson]

Just and observation re: my PowerJoke: (hey, it's actually applicable to this conversation)


The state made me put a muffler on it. I KNOW my EGTs went up and I think I dropped a little pulling power as well. I didn't document it quite as well, and the trips were spaced a out between a couple of months, but same load, on the similar trailers.

I've been kind of looking for a muffler to 'gut' like a cat, but don't know if that would help or not. (thus passing the visual part of the inspection which is all that's required with the turbo)

 

[rockdog]

OH MY HELL!! Just what I needed. Another noisy damn dodge up on state street keeping me awake at night.

 

[benjy]

OH MY HELL!! Just what I needed. Another noisy damn dodge up on state street keeping me awake at night.

nope, when he cruises state he'll be in his TJ

 

[Meat_]

Just and observation re: my PowerJoke: (hey, it's actually applicable to this conversation)


The state made me put a muffler on it. I KNOW my EGTs went up and I think I dropped a little pulling power as well. I didn't document it quite as well, and the trips were spaced a out between a couple of months, but same load, on the similar trailers.

I've been kind of looking for a muffler to 'gut' like a cat, but don't know if that would help or not. (thus passing the visual part of the inspection which is all that's required with the turbo)

Mine has a muffler, it's a straight through muffler. Basically a 4" stainless tube that has been cheese grater'd and then had a 7" tube wrapped around that.
Also, there are no diesel emissions in Utah County

OH MY HELL!! Just what I needed. Another noisy damn dodge up on state street keeping me awake at night.

welcome

 

[Bart]

Hmmm, maybe I'll have to see what Wayne can get one for the PS Ford. I've been wanting a 4" exhaust.

 

[waynehartwig]

Hmmm, maybe I'll have to see what Wayne can get one for the PS Ford. I've been wanting a 4" exhaust.

PM sent