ORIGINAL: drube
I see, so by using the pump you can also eliminate the use of the vac/pressure hose to the exhaust correct? How big is your fuel tank and how long can you fly on it? Do 4 strokes use the same fuel as 2 strokes? I'm using 16% wildcat now.
had to take a break to give the kids dinner,I will try to give you my best answers, I used the stock tank that came with the model it works well enough and has not leaked in several years use,I get about 15 min of running time with fuel to spare for a go around but not alot past that.
the pumped 4st engines dont need the pressure line thats correct, its more like the oposite they need a vent so the pump can suck the fuel out of the tank without making a vacuum in the tank, on a couple of my planes I have epoxied a brass tube to the bottom of the cowl to secure the vacuum line so its not flopping around.
yes most fuel with a oil content at aprox18% oil and 5-15% nitro works well for OS 4strokes I use it in my 2 strokes as well,I don't know much about the wildcat fuel I run either powermaster 10%or Omega 10% with 17%oil both work well in all my engines.