Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

slowmover · 11-26-2011, 08:14 PM

They can be used to decrease warm-up time at idle. Even a few minutes goes a long way. Not the same as a "jake brake" a compression release device used on Class 8 trucks, but the same effect in using exhaust backpressure to slow the rig in coming down to a stop. (Service brakes can last over 200k with the right driver exercising prudent use of these devices; my own experience in the oilfield with a variation of this truck type is that is unmatched for bringing a 30k+ rig to a town speed limit while on a non-Interstate highway).

Probably the reason DD wants to avoid them -- with an apparent "rule" about no engine braking while underway -- is also the "no idle" rule, etc.

Jacobs Exhaust Brake

Pacific Brake PRXB

These have been stock on CTD's since late 2007 (and a dealer option for about fifteen years before that). A CTD with the six speed manual and an exhaust brake has a wide range of stopping performance choices available to the driver. A marriage made in heaven. (Now, if only we had a seven speed manual with [2] overdrives optimal for both solo and "towing heavy").

.

11-26-2011, 08:14 PM	#9 (permalink)
slowmover Banned Join Date: Oct 2009 Location: Fort Worth, Texas Posts: 2,442 2004 CTD - '04 DODGE RAM 2500 SLT Team Cummins 90 day: 19.36 mpg (US) Thanks: 1,422 Thanked 737 Times in 557 Posts	They can be used to decrease warm-up time at idle. Even a few minutes goes a long way. Not the same as a "jake brake" a compression release device used on Class 8 trucks, but the same effect in using exhaust backpressure to slow the rig in coming down to a stop. (Service brakes can last over 200k with the right driver exercising prudent use of these devices; my own experience in the oilfield with a variation of this truck type is that is unmatched for bringing a 30k+ rig to a town speed limit while on a non-Interstate highway). Probably the reason DD wants to avoid them -- with an apparent "rule" about no engine braking while underway -- is also the "no idle" rule, etc. Jacobs Exhaust Brake Pacific Brake PRXB These have been stock on CTD's since late 2007 (and a dealer option for about fifteen years before that). A CTD with the six speed manual and an exhaust brake has a wide range of stopping performance choices available to the driver. A marriage made in heaven. (Now, if only we had a seven speed manual with [2] overdrives optimal for both solo and "towing heavy"). . Last edited by slowmover; 11-26-2011 at 08:30 PM..