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Old 03-06-2020, 12:26 PM   #1
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Pacbrake PRXB (newer design)

Anyone swap out their old style Pacbrake exhaust brake (2001) to the new design PRXB Exhaust Brake?
Comments? I think I have a bad foot switch and, while not directly related, I thought I might upgrade the brake. Itís supposed to brake better at low RPMs.

https://pacbrake.com/product-lines/exhaust-brakes/
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Old 03-06-2020, 05:28 PM   #2
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Jeff:
My first DP was a 2002 Holiday Rambler Endeavor. My neighbor bought it from me and still has her. I bought the "newer" PRXB Pacbrake and installed it in 2008. I did not notice any difference, so for me, it was a waste of money.
Good luck with your selection.
Mike
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Old 03-06-2020, 06:44 PM   #3
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Some mature Cummins engines have had problems with cracked exhaust manifolds apparently due to the heat from using exhaust brakes. I would be concerned holding back more exhaust would cause the exhaust temperatures to raise even more.
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Old 03-07-2020, 06:32 AM   #4
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Quote:
Originally Posted by Jeff753 View Post
Anyone swap out their old style Pacbrake exhaust brake (2001) to the new design PRXB Exhaust Brake?
Comments? I think I have a bad foot switch and, while not directly related, I thought I might upgrade the brake. Itís supposed to brake better at low RPMs.

https://pacbrake.com/product-lines/exhaust-brakes/
Changed our to the newer design when we repaired a blown exhaust manifold gasket. Could not tell and difference. Should have saved the money.

Bob
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Old 03-07-2020, 09:39 AM   #5
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I looked into this about four years ago and the consensus of opinion was like Bob Nodine's. Couldn't tell any difference, so I passed.
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Old 03-07-2020, 12:35 PM   #6
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Quote:
Originally Posted by barmcd View Post
I looked into this about four years ago and the consensus of opinion was like Bob Nodine's. Couldn't tell any difference, so I passed.


Whereís my like button
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