View Single Post
Old 07-15-2013, 02:30 PM   #211 (permalink)
rmay635703
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 3,891

Silver - '10 Chevy Cobalt XFE
Thanks: 506
Thanked 867 Times in 654 Posts
Quote:
Originally Posted by P-hack View Post
compared to a tdi that is %95 efficient (assuming some effort in driveline optimization) at driving the wheels under optimum conditions.

Now if you want to use "peak bsfc" as your argument, we are assuming peak bsfc in both "pusher" and "generator" here.

But if the tdi direct drive has to "compete" with the generator, the "at the wheels" bsfc for the tdi is like 206 gm/kwh. Whereas the same efficient engine running a generator is like 301 gm/kwh.
Find me a 220cc motor with the same BSFC range as the TDI you quote

  Reply With Quote