View Single Post
Old 09-20-2019, 01:00 AM   #9 (permalink)
It's all about Diesel
cRiPpLe_rOoStEr's Avatar
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 7,433
Thanks: 0
Thanked 764 Times in 675 Posts
Originally Posted by Thorium-Synfuel View Post
What kind of assessment/'lurking' have you done on the concept of trying a parallel-twin swapped into the geo metro?
Not specifically the Geo Metro. When I was 13, there was a Brazilian variant of the Opel Corsa B rebadged as a Chevrolet at home, with a 1.0L version of the Family 1 engine because GM didn't want to try the 3-cyl here. I didn't pay too much attention to the torque curves by then, so I assumed a Honda CB 500 engine would be up to the task. But anyway, nowadays if I were going to do a 2-cyl motorcycle engine swap maybe I'd consider the engine of a Triumph Bonneville, as it has a similar torque output to that old Corsa.

Or better yet, the 1980s CRX HF. Can you imagine the fuel efficiency savings?
Honestly I wouldn't expect some outstanding fuel savings, since a considerably smaller engine would have to rev higher in order to reach the same speed, with a shorter differential ratio to compensate for the lower torque output. Some eventual fuel savings would be more related to weight savings, which would also not be so impressive.
  Reply With Quote