Downshift or exhaust brake?
I was just thinking after reading a post about gas vs diesel trucks where somebody mentioned they liked diesel because of the exhaust brake. I've never had a diesel, always gas. If I come up to a long...
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I don't know about the 6.7 Cummins but my '03 5.9 HO HPCR engine Nv5600 tranny with a 11200 lb 5er or a 16k GN stock trailer going down steep grades with the Cummins at 2800-3000 rpm at 55 mph without the Jacobs EB on is like shifting to neutral down the hill. Results of doing it both ways were hot smoking brakes at the bottom of the grade (not Rocky mountains).
Some years back before VVT and VGT came in use exhaust brake mfg advertised 180 hp for braking performance on the 5.9 Cummins/other diesels.
Then the new 6.7 Cummins came out and Dodge advertised exhaust braking at 230 hp.
I haven't seen any advertising from Ram/Ford/GM on the new diesels engine braking HP but sound like its more on the current diesels now.
Some years back before VVT and VGT came in use exhaust brake mfg advertised 180 hp for braking performance on the 5.9 Cummins/other diesels.
Then the new 6.7 Cummins came out and Dodge advertised exhaust braking at 230 hp.
I haven't seen any advertising from Ram/Ford/GM on the new diesels engine braking HP but sound like its more on the current diesels now.
