View Single Post
  #34  
Old 01-30-2014, 11:50 AM
Cliff R's Avatar
Cliff R Cliff R is offline
Ultimate Warrior
 
Join Date: Nov 2000
Location: Mount Vernon, Ohio 43050
Posts: 18,153
Default

With a fuel cell and large lines a mechanical pump will work fine for high performance use, even drag racing. They easily fall short of reaching full capacity if fed by stock tanks/sumps and tiny supply lines. This almost always requires a "pusher" pump so they work correctly on hard runs.

Electric pumps simply work better mounted behind a sumped tank or fuel cell, as we use the forces generated by hard acceleration to supply the pump, then ALL the fuel going forward is under pressure, not under suction......Cliff

__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),