Forum Discussion
wilber1
Feb 16, 2020Explorer
The last Cummins to have a flat torque curve was the 350 HP 650 LB/FT. in early 2011
It reached 650 lbft at 1600 RPM and stayed flat until peak power at 2800 RPM
The 350/800 engine reached 800 lbft at 1600 RPM but gradually decreased until it was the same as the 650 engine at 2800 RPM. If it was still making 800 lb ft it would be putting out 426 HP, not 350.
If the Cummons 900 engine was still making 900 lb ft at 2800 RPM it would be putting out 480 HP, not 385.
It reached 650 lbft at 1600 RPM and stayed flat until peak power at 2800 RPM
The 350/800 engine reached 800 lbft at 1600 RPM but gradually decreased until it was the same as the 650 engine at 2800 RPM. If it was still making 800 lb ft it would be putting out 426 HP, not 350.
If the Cummons 900 engine was still making 900 lb ft at 2800 RPM it would be putting out 480 HP, not 385.
About Travel Trailer Group
44,056 PostsLatest Activity: May 04, 2014