The electric fan benefit is primarily in limiting fan thrust/drag power
loss at speeds when forward motion alone provides sufficient cooling air
flow (no thermal clutch here), cycles to cool the engine on a
thermostatic basis, cycles after shut down, and I suppose eliminates
some water pump bearing wear associated withfan thrust axial loading at
all speeds. Noise is much lower at high RPMs as well.
An electric fuel pump (used in parallel with the mechanical pump which I
recently rebuilt but may ultimately remove) is valuable in charging the
fuel lines after long sits, without needing to strain the electrical
system and starter in order to motor the engine to do so.
- Bob Mann, '68 2000 Solex, SPAL 14" puller fan, OEM mechanical and
P60504 3.5psi axial rotary electric fuel pumps
On 8/2/2013 3:57 PM, Larry Braddock wrote:
> I see a number of people posting re. electric fuel pumps and fans, and as I've
> never had a problem with mechanical ones, I've wondered what I may be missing
> as to the advantages of going electric.
>
> Larry
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