Fuel Pump power consumption

Assuming it's an SU that sounds about right from memory.

/5 minute break

.....and is borne out by a quick test of the SU in my neighbour's MGB.

WOW. I never expected that from the kind of flowrates and heads involved.

Steve

I don't think energy efficiency was a design criterion! ('bout what I would have expected) JD

JD

If you go here:

I've just been through this process buying a fuel pump for a Jensen. It was a cube type pump that flowed a maximum of 34 gallons/hour and up to 10psi maximum pressure. Currant consumption was 1.6 amps IIRC.

If it is 'pulling' 35 Watts, through a dropper resistor, then this too will be 'pulling' 35 Watts. So, if it's not a big ceramic wire wound thing - like they use to slow up heater fans then it will be burning hot!

Julian.

They claim about 1 amp somewhere else in the blurb. This is for the current day solid state interrupter pump. The older ones as on the RRC, and I presume the 101, were much less efficient and 3.5 amp. or thereabouts at full chat does not surprise me.