Adding an Exhaust Brake
03-06-2008, 12:12 PM
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Adding an Exhaust Brake
i have a 06 2500 and was wondering how much goes into adding an exhaust brake. is it something that a mechanically inclined person could do or is it something that should be left to a professional? also with my truck not being offered a exhuast brake how would it be mounted and controlled? would you just have to add a dash swicth or what?
also when the exhaust break is functioning does the exhaust temps jump? should a EGT gague be installed with it to insure your not going crazy on the thing?
also when the exhaust break is functioning does the exhaust temps jump? should a EGT gague be installed with it to insure your not going crazy on the thing?
03-06-2008, 12:46 PM
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Install is pretty easy and straight forward. I did mine and I'm not a good wrench by any means.
The switch is small, EGTs go up slightly when engaged, but the brake only comes on when your foot is off the go pedal so EGTs aren't a concern. You'll run much hotter accelerating.
Pacbrake switch:
Pacbrake compressor:
The switch is small, EGTs go up slightly when engaged, but the brake only comes on when your foot is off the go pedal so EGTs aren't a concern. You'll run much hotter accelerating.
Pacbrake switch:
Pacbrake compressor:
03-06-2008, 01:17 PM
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why is it that you run hotter when accelerating? seems that if the gate isnt closed the temps should be the same? or is this portion of the exhaust not smaller and creat a choke point in the exhaust?
also what brand did you get?
also what brand did you get?
03-06-2008, 01:23 PM
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in case you go with the Mopar model, here is a link to the install guide. I had mine done when I bought it, but it is pretty straight forward..
Hardest part is soldering the wire in by the TPIMM..
http://www.jakebrake.com/support/doc...0E2_Screen.pdf
Can't comment on temps as I do not have an EGT guage.
Bryan
Hardest part is soldering the wire in by the TPIMM..
http://www.jakebrake.com/support/doc...0E2_Screen.pdf
Can't comment on temps as I do not have an EGT guage.
Bryan
03-06-2008, 01:48 PM
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I had a U.S. Gear exhaust brake installed on my 04 5.9 and loved it. Everything I read recommended placing the brake away from the turbo to avoid overheating. I had a shop install mine and was glad I did.
My 05 doesn't have an exhaust brake and I don't plan to do a lot of heavy hauling in the mountains so I may not have one installed.
My 05 doesn't have an exhaust brake and I don't plan to do a lot of heavy hauling in the mountains so I may not have one installed.
03-06-2008, 01:54 PM
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I meant hotter when comparing accelerating temps to decelerating temps. I didn't notice a rise in EGTs while accelerating after installing the brake.
I have the Pacbrake PRXB.
03-06-2008, 01:57 PM
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does it have that big switch like the mopar jakebrake up on the controls?
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03-06-2008, 02:00 PM
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thats the one i was looking at too. so you like it? i cant see the picts becasue my work computer blocks imagaes form pretty much anything but www.imageshack.us
does it have that big switch like the mopar jakebrake up on the controls?
does it have that big switch like the mopar jakebrake up on the controls?
I love it! I never turn it off. The switch is much smaller than the Jacobs switch. Do you have an auto or manual tranny?
Try this link to see the pics: Pacbrake
03-06-2008, 02:02 PM
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I love it! I never turn it off. The switch is much smaller than the Jacobs switch. Do you have an auto or manual tranny?
Try this link to see the pics: Pacbrake
Try this link to see the pics: Pacbrake
03-06-2008, 02:08 PM
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i have an auto. so i guess im a little confused how this one works then becasue the engin brakes ( which i undertsnd is differant ) on the big 7tons we have in the marines you have to flip the swicth and it will break, but how does the exhaust break know when to function? and i cnt see that pict cause its a photobucket pict, its blocked on gov computers
With an auto, the ECM controls the braking. When installing the brake you'll connect it's wire harness to a couple empty pins in the main plugs at the ECM. All you have to do is turn the master switch on or off and the trucks computer will activate and deactivate the brake as needed.
For the switch, any toggle switch will work. I just used the one supplied by Pacbrake. It's small enough to not be an eye-sore but easy to activate.
03-06-2008, 02:12 PM
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With an auto, the ECM controls the braking. When installing the brake you'll connect it's wire harness to a couple empty pins in the main plugs at the ECM. All you have to do is turn the master switch on or off and the trucks computer will activate and deactivate the brake as needed.
For the switch, any toggle switch will work. I just used the one supplied by Pacbrake. It's small enough to not be an eye-sore but easy to activate.
For the switch, any toggle switch will work. I just used the one supplied by Pacbrake. It's small enough to not be an eye-sore but easy to activate.
03-06-2008, 02:15 PM
#12
MMMmmmm.... Grits!!
I've been very happy with my Jacobs (Mopar) brake. I leave it on all of the time. While I'm parked and idling down it keeps the EGT's at 350*. Turn it off and they drop to 310*. I think they all arm by turning the switch on. The brakes activate when the APP senses 0 (your foot off the accellerator pedal) then engages after two seconds. As soon as you touch the acc pedal it deactivates instantly. I have seen the Jacobs switches mounted to the auto shifter. Still works at your fingertips.
Chris
Chris
03-06-2008, 02:30 PM
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oh i guess i should have asked this as well, but is there a down side to running an exhaust brake? does it wear the motor faster being used all the time? i rarely hear of anything that doesnt have some sort of adverse side effects.