Apparently the primary engine being benchmarked is the 600 hp Cummins VTA-903T that powers the Bradley Fighting Vehicle and could eventually be replaced by the ACE, which is also destined for the Bradley’s replacement if the project goes well.
The guy I know came up with some REALLY clever modifications based on more modern technology.2 stroke diesel is nothing new. Detroit diesel tried it years ago. They were noisy, leaked oil profusely, and unreliable for the long haul truck market. Thus they were phased out years ago in favor of the 4 stroke engine design.
2 stroke diesel is nothing new. Detroit diesel tried it years ago. They were noisy, leaked oil profusely, and unreliable for the long haul truck market. Thus they were phased out years ago in favor of the 4 stroke engine design.
The guy I know came up with some REALLY clever modifications based on more modern technology.
I am not impressed. It looks good on paper, but in practice two-cycle engines have problems I am not going to believe can be satisfactorily overcome until after I see it. Further exacerbating the huge claims for this engine is the following:
Using an obsolete engine as the standard against which the new one is to be judged is somewhere between disingenuous and flagrantly stupid.
the Detroit 71 series engines were used from 1938 to 1995. I drove a lot of trucks with Detroit Power. 2-71 & 4-71 powered a lot of Construction Equipment. They didn't leak anymore than a Cummins if maintained properly. Torque is the biggest difference between 2 vs 4 stroke Disels. A lot of WWII Ships used Detroit power for generating electricity.2 stroke diesel is nothing new. Detroit diesel tried it years ago. They were noisy, leaked oil profusely, and unreliable for the long haul truck market. Thus they were phased out years ago in favor of the 4 stroke engine design.
Using an obsolete engine as the standard against which the new one is to be judged is somewhere between disingenuous and flagrantly stupid.
Hmmm, a Harley Davidson diesel?2 stroke diesel is nothing new. Detroit diesel tried it years ago. They were noisy, leaked oil profusely, and unreliable for the long haul truck market. Thus they were phased out years ago in favor of the 4 stroke engine design.
Tried it? I would say they succeeded at it. From the 30's to the 90's is LONG time for an engine to live with relatively little change.2 stroke diesel is nothing new. Detroit diesel tried it years ago.
Can't deny that one... but oh is that "noise" a sweet noise. It doesn't take a skilled person to pick out the sound of a 2-stroke "Screamin Detroit" from any distance away...They were noisy,
I will disagree with this. I guess it depends how you define "profusely". Any old engine is going to develop oil leaks and the fact that Detroit's stayed in service for decades means oil leaks were going to become a thing. They don't leak oil anymore than any other engine that stays in service that long.leaked oil profusely,
I don't have any experience here. I doubt they are "unreliable" in the sense that they were a market failure. I just think they were replaced by newer, more advanced engines. And that doesn't have any bearing on "reliability", it's only common sense that older designs will be replaced with newer, better technology.and unreliable for the long haul truck market. Thus they were phased out years ago in favor of the 4 stroke engine design.