Jff24Gordn said:
There is a alumnium 5.9. It came with a P pump. I have seen it. I think they said it saved about 80 lbs or something like that.
There was also an aluminum head put together with steel inserts...
I have it in a .pdf entitled "The Influence of Light Weight Materials on Fuel Economy and Emissions in Heavy Duty Diesel Engine"
Paul C. Becker, Yong-Ching Chen and Martin Myers: Cummins Inc. 8/20 - 8/24/2000. This was a presentation at the DEER Workshop in San Diego, CA.
Here are some points from the doc:
For an in-line six cylinder diesel engine:
A total 25% reduction in total engine weight
6% reduction in fuel consumption
Head and block cast in aluminum using 1988 vintage tooling
Cylinder liner, valve guides and valve seats are pressed-in rebuild kit components
Main bearing cap is ductile cast iron production part
Cast iron engine weighs 880 lbs.
Aluminum engine weighs 668 lbs.
Weight Saving is : Head: 70 lbs.
Block: 140 lbs.
Total: 210 lbs. (24%)
Engine achieved max. torque of 712 ft-lb. @ 1400 rpm and
240 hp @ 2500 rpm
Noise test indicated that the engine was similar to cast iron at
full load, but was slightly higher at half and no load
conditions
Completed 500 hours of thermal cycle test. Engine was shut down due to a severe coolant leakage
Built up one aluminum engine for NAVY for noise &
magnetic signature measurements
Later,
Matt