Exhaust brake?
Senior User
Joined: Aug 2009
Posts: 375
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From: Phoenix
diesels dont compression brake on downshift the way gassers do.
using an exhaust brake with an auto you need a way to lock the torque converter, other than that I have no experience running one on an IDI... yet
using an exhaust brake with an auto you need a way to lock the torque converter, other than that I have no experience running one on an IDI... yet
Senior User
Joined: Aug 2009
Posts: 375
Likes: 0
From: Phoenix
one of my friends has one on his powerstroke...granted not the same beast as an idi by any stretch, but it has nowhere near the holding force a cummins does...we did a 7% grade with an 8500lb trailer....unless the motor was turning 23~2500 RPM's the brake wasn't worth much....engaging at 2000 or less and you really didnt know if it was there.
Could have been his unit, but we both kind of concluded it was cuz the stroke was a higher winding motor than the cummins
Could have been his unit, but we both kind of concluded it was cuz the stroke was a higher winding motor than the cummins
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Posting Guru
Joined: Jan 2010
Posts: 1,665
Likes: 4
From: Terre Haute, IN
BD Diesel carries one for about $1100. I'm not even going to think about it if it costs that much.
I bet it'd be real handy if you pulled trailers all the time.
I bet it'd be real handy if you pulled trailers all the time.
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Postmaster
Joined: Apr 2008
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Odd you should say that, as my IDI has a whole lot more engine braking capability than the equal-weight 351W F-series we have...
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Joined: Oct 2007
Posts: 10,501
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From: Faibanks Ak.
one of my friends has one on his powerstroke...granted not the same beast as an idi by any stretch, but it has nowhere near the holding force a cummins does...we did a 7% grade with an 8500lb trailer....unless the motor was turning 23~2500 RPM's the brake wasn't worth much....engaging at 2000 or less and you really didnt know if it was there.
Could have been his unit, but we both kind of concluded it was cuz the stroke was a higher winding motor than the cummins
Could have been his unit, but we both kind of concluded it was cuz the stroke was a higher winding motor than the cummins
