Fuel pump amperage draw?
 

How can I find out the amperage draw of racing fuel pumps.
I've got an Aeromotive A 1000 and it's grossly overkill for my application. I'm going to go smaller over the winter. Want to get one that draws the least current.

Re: Fuel pump amperage draw?
 

Art call Weldon when you get their pumps they have a flow chart amp draw vs pressure and voltage + you wont find a better part or warnnty

Re: Fuel pump amperage draw?
 

Art, there is a tool called a fuse buddy. It is made for flat blade fuses, not sure about round ones. Get the right one for your application and plug it into the circuit and it will tell the amp draw you have on that circuit NAPA sells them, not sure about anywhere else. Hope this helps.
Mark

Re: Fuel pump amperage draw?
 

Art, you can use your DVOM most have an amp setting. Just hook one wire to Batt pos. the other to your pumps pos. wire and read the display. If your meter doesn't do Amps please disregard, however I'm not sure I would purchase a fuel pump based on amp draw alone. Amp draw of an electric motor is not a true indicator of how good it is. Just my opinion. Joe

Re: Fuel pump amperage draw?
 

There is nothing wrong with the present setup. It's just overkill for the power I make.
And I'm looking the lower my amperage draw. I can slow my car down .08 to a tenth by putting the electric fans on. So I figure that there is something in a smaller fuel pump.

Re: Fuel pump amperage draw?
 

Art,
The slower ET is probably because the Electric fans are blowing forward. It might be to your advantage to reverse the rotation & make them puller fans.
With a big enough battery your ride might be quicker. Keep it quiet.. I can see it now-- an ART fan rotation rule... ;~)

Re: Fuel pump amperage draw?
 

Thanks Adger, but they already are reversed. I didn't think I could afford the pusher fans with my blistering 105 mph LOL Probably would slow me down a bunch.
There is a distinct correlation to my voltage and my horsepower. Leaving the alternator off costs me a tenth (in the wrong direction) Even though I have a full sized battery in the stock location (short leads)
I run a Mezeire water pump, 2 LC1 wide bands, an A 1000 fuel pump, the electric fan, and my ECU (which works from 8 to 20 volts).
But on the track or on the dyno. When I disconect the alternator it slows or loses power.
I think the fuel pump is the biggest amp draw. Thats why I want to go to a smaller one.
I'm only making 240 HP (hope for 260) so the A 1000 is gross overkill.

Re: Fuel pump amperage draw?
 

Art--- call Aeromotive talk to their tech dept---these guys are sharp tell em your situation see what they say---also ask em about the #16306 fuel pump speed controller see if it will help your case---Good luck Comp

Re: Fuel pump amperage draw?
 

Art, between the 2 I'd have to say without a doubt your fans pull more amps than the fuel pump, 'course I'm unsure of what fans you run but for the most part they pull quite a bit. I personally don't run my fan during the run, flip it on coming up the return road. My car is in storage now or I'd test my pump which is the same as you run. As mentioned earlier I'm sure you can get this info from Aeromotive they do make a great product. As a side note the heaters in your 02's also are a fair amount of current draw. Joe

Re: Fuel pump amperage draw?
 

You don't want your fans running during a pass anyway. They actually tend to block air flow through the radiator. They can not move as much air as ram air above 40 MPH or so. Factory computers cut the fans off about that speed and just let them "wind mill". I don't know about other ECUs, but FAST cuts them off at WOT for the same reason. The car will actually run cooler that way, they will come back on in the shut down area. Art, you might check with the people that make the ECU you are using about that.