Fuel pumps: elect. or mech.?
10-20-2003, 08:51 AM
#1
Registered
Thread Starter
Fuel pumps: elect. or mech.?
On 454's putting out about 450hp with 750 double pumpers should I go back with mechanical or electric fuel pumps? Also what brand and model?
10-20-2003, 09:20 AM
#3
Charter Member #737
Charter Member
Mechanical I use the Carter H/V. The stock merc pumps should even be fine.
10-20-2003, 11:56 AM
#4
Registered
At what HP level does a mechanical pump just not produce enough volume? I see pictures of blower motors with mechanical pumps all the time which leads me to believe they can support 700 plus HP?
10-20-2003, 04:53 PM
#5
~~~~
Charter Member
I am running a Holley 170 gpm mechanical on my B&M 250 setup. Single 1050. Carb was converted to marine by none other than Nickerson Performance.
Cost? $127.00 plus shipping.
Holley does not make a 170 gpm mechanical marine fuel pump.
I know that on some of his blower setups, he uses both a mechanical and an electric, together.
I was running an Edelbrock 130 gpm prior to the Holley. The housing developed a crack and was spraying oil into the bildge. It was a non-marine version and seemed to do the job at 130 gpm.
Cost? $127.00 plus shipping.
Holley does not make a 170 gpm mechanical marine fuel pump.
I know that on some of his blower setups, he uses both a mechanical and an electric, together.
I was running an Edelbrock 130 gpm prior to the Holley. The housing developed a crack and was spraying oil into the bildge. It was a non-marine version and seemed to do the job at 130 gpm.
10-20-2003, 10:02 PM
#6
Toxic FORMULA
Platinum Member
Carter High volume (140 gph) internally regulated and just tap a vacuum tube from a carb into the vent hole on top and run a tube up to the carb or flame arrester.
Got them on my 540's and the pressure never moves.
Got them on my 540's and the pressure never moves.
