cappers
Well-Known Member
Today I removed the 12" Kenlowe pusher fan and reinstalled the 11 blade viscous fan and hub.
I never felt that a single 12" fan was enough for a V8 and although it did the job, in the recent hot weather in slow moving traffic the engine temperature has has been cycling up and down, 80-100, averaging high 80s-low 90s. It was only used because it came with the original 2.5P and when it was converted to a V8 there was no fan shroud for the viscous and the consensus was without a shroud the viscous would not be much use. But I don't like the electric fan and have to keep an eye on the temp gauge and wait for it to kick in when I think it's getting too hot. However as the viscous fan sits very close the rad (the hub is about 2" behind the rad) and I figured it couldn't be worse than the electric, even without the shroud, and it moves far more air than the electric.
Went for a drive, mix of town traffic, country lanes, fast A road and then town traffic again. Temp went to high 80s as stat opened then went down to low 80s and stayed there no matter the driving conditions. Obviously the ambient temps are lower than a few weeks ago but even in the current weather the electric fan came on in slow traffic.
I have a ?V8 shroud and with a bit of modification and fettling should be able to make it fit. That will concentrate the suction over the whole rad and protect fingers and make it look correct.
If things go wrong I'll post my findings but I think (hope) this is going to work OK.
P.S. It sounds better now IMO! There is the quiet roar of the fan, obviously when cold and locked but even freewheeling there is an underlying propeller sound!
I never felt that a single 12" fan was enough for a V8 and although it did the job, in the recent hot weather in slow moving traffic the engine temperature has has been cycling up and down, 80-100, averaging high 80s-low 90s. It was only used because it came with the original 2.5P and when it was converted to a V8 there was no fan shroud for the viscous and the consensus was without a shroud the viscous would not be much use. But I don't like the electric fan and have to keep an eye on the temp gauge and wait for it to kick in when I think it's getting too hot. However as the viscous fan sits very close the rad (the hub is about 2" behind the rad) and I figured it couldn't be worse than the electric, even without the shroud, and it moves far more air than the electric.
Went for a drive, mix of town traffic, country lanes, fast A road and then town traffic again. Temp went to high 80s as stat opened then went down to low 80s and stayed there no matter the driving conditions. Obviously the ambient temps are lower than a few weeks ago but even in the current weather the electric fan came on in slow traffic.
I have a ?V8 shroud and with a bit of modification and fettling should be able to make it fit. That will concentrate the suction over the whole rad and protect fingers and make it look correct.
If things go wrong I'll post my findings but I think (hope) this is going to work OK.
P.S. It sounds better now IMO! There is the quiet roar of the fan, obviously when cold and locked but even freewheeling there is an underlying propeller sound!
The cold start roar soon dies down but the background whoosh remains especially on acceleration, and I like it!
