jagman Posted October 14, 2011 Share Posted October 14, 2011 There have been lots of variations on fuel systems , 2 or 3 pumps , swirl pots , Bosch , walbro , and other options . But Ive never seen any voltage controllers used this side of the pond . I've ordered the Kenne Bell unit ( the lower 17.5 volt unit) should be here on Tuesday . Cost just under £200 Inc delivery . There is test data on their website and they increase flow output upto 50% on a test rig , each increase or decrease of 1volt = 10% flow. Increasing/decreasing voltage is what Toyota did in the first place ; every DC motor has a speed vs torque relationship ,altering this by voltage change effectively gives you 2 pumps in one . Why has no one yet tried this ? After all the stock denso pumps are very good and seldom fail even decades old . Anyway after fitting I will get some dyno tests - unit off and on for comparrisson . Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 14, 2011 Share Posted October 14, 2011 Possibly because they may start to fail being fed over 14 volts? Or people don't like American gizmos that over complicate things? If I remember rightly someone posted about these before and I seem to recall looking at the flow data and finding it flawed due to no proper flow V pressure at X volts figures? I might have looked at something else. I just pop an 044 in the tank, uprate the wiring and trust in Mr Bosch's competence in making world class fuel pumps with full spec sheets. Anyway, what are you dyno testing, I don't get that bit? Quote Link to comment Share on other sites More sharing options...
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