View Single Post
Old 10-25-2009, 09:43 PM   #20 (permalink)
RobertSmalls
Left Lane Ecodriver
 
RobertSmalls's Avatar
 
Join Date: Aug 2008
Location: Buffalo, NY, USA
Posts: 2,257

Prius C - '12 Toyota Prius C
Thanks: 79
Thanked 284 Times in 197 Posts
Oh, I love data.
Quote:
Originally Posted by Gasoline Fumes View Post
That is a super-flat BSFC curve. I guess that should be expected from this sort of diesel, though.

The tragedy here is that the BSFC is consistently underwhelming. 210g/HP*hr is the same as 282g/KWh for the diesels you'll find here, or 277g/KWh for the gassers. Bottom line, at 27.8% efficiency, this Kubota is about as efficient as a garden-variety engine with fuel economy gearing, but much less efficient than any of the special engines out there - TDI, lean burn, Prius.

I like the idea of an underpowered, efficient small diesel for cruising, plus a large gas engine for accelerating, hill climbing, etc. However, this is not the correct engine.
  Reply With Quote