09-24-2017, 03:08 PM
It seems the 8V92 requires LOTS more cooling than almost any other engine making comparable HP.
I agree that the fan shrouding leaves lots to be desired. Not much efficiency to be had when the air isn't captured at the blade tips. . . .
At full capacity, a direct drive fan is more efficient - due to losses when mechanical is converted to electrical & back to mechanical. However, being able to trim the fan speed to only what is needed definitely has benefits.
I would think more radiator would allow more cooling for the same amount of air flow.
I have toyed with the idea of placing an additional radiator is on the roof - but, that brings some issues too. . . . .
Easiest solution is for me to plan to take it a little slower - but that is also the hardest for me to implement!
I agree that the fan shrouding leaves lots to be desired. Not much efficiency to be had when the air isn't captured at the blade tips. . . .
At full capacity, a direct drive fan is more efficient - due to losses when mechanical is converted to electrical & back to mechanical. However, being able to trim the fan speed to only what is needed definitely has benefits.
I would think more radiator would allow more cooling for the same amount of air flow.
I have toyed with the idea of placing an additional radiator is on the roof - but, that brings some issues too. . . . .
Easiest solution is for me to plan to take it a little slower - but that is also the hardest for me to implement!
1987 classic #159
8V92 MUI , Allison 740