Question about 2003 ATK 600 Dirt Track Motard

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Fuel filter question

I've been questioning the placement of the fuel filter. In 30 or so years in the automotive industry I have never seen a fuel injection system with the fuel filter on the suction side of the pump. That seems like a real risk for cavitation in the pump. Electric pumps push much more efficiently than they pull. Automotive systems usually have the filter on the pressure side of the pump. Has anyone had success in changing this arraignment? If so

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What filter did you use? I can think of several applications that would fit without changing the volume of the systemSure you could get rid of the carb filter and go to any off the shelf filter rated for high pressure fuel injection. The biggest issue for cavitation is the quick connect fitting. They are just adequate for flow and when the internal orings swell they will shut you down when you least expect it. Drilling the valves out cures that issue . I also recomend using a fram G2 filter in place of the puny stock one. They have 10 times the media. Dont worry about trashing the fuel pump if you get rid of the suction filter as it has a tank screen for catching the rocks. I dont use a pressure side filter due to higher cost and you cannot see the fuel flow and after updating the stock system it works trouble free.,

Posted on Nov 10, 2008

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