daugen
Epic Contributor
I believe there is a big difference between part throttle on an air cooled gas engine and part throttle on a liquid cooled diesel.
On hot days those gas engines need all the air they can get to stay cool apparently and the benefits of more air seem to outweigh
higher fuel usage and wear/tear on machinery. I think this is also because during warranty period manufacturers don't want to pay for cooked engines due to clogged fins and coolers so they engineer the air flow for worst case, maybe the cooler being half plugged shut.
I don't see hydro trannies getting that dirty, so it's just air flow, almost all the zturns have fans on top of their hydro units.
So clearly heat is an issue for them. Lower rpms means those fans are running at lower speeds, I can see the need.
The hydro trans on my ancient Cub Cadet is a work of art, neat looking finned aluminum case, looks like Buck Rogers could fly it to the Moon...
On hot days those gas engines need all the air they can get to stay cool apparently and the benefits of more air seem to outweigh
higher fuel usage and wear/tear on machinery. I think this is also because during warranty period manufacturers don't want to pay for cooked engines due to clogged fins and coolers so they engineer the air flow for worst case, maybe the cooler being half plugged shut.
I don't see hydro trannies getting that dirty, so it's just air flow, almost all the zturns have fans on top of their hydro units.
So clearly heat is an issue for them. Lower rpms means those fans are running at lower speeds, I can see the need.
The hydro trans on my ancient Cub Cadet is a work of art, neat looking finned aluminum case, looks like Buck Rogers could fly it to the Moon...