will this setup work ?

please comment

as i need the fuel tank to be on the center of the wing and the header tank is abt 5 inches away placed just behind the fire wall.

You will still need a Cline regulator/pressurized tank.

The header will not solve your problems.

no sure..........but I would just use an Iron Bay regulator.... oh wait....I do!

tank is back by the CG and it works perfectly...

Cline makes one too....

No, it won't work because if you think about it, the header tank is really just acting like a large volume extra bit of fuel line. The only way to make it work is to use a fuel pump to pump fuel from the main tank (Uniflow won't be needed then) up to a normally vented header tank where the vent line allows overflow (recirculation) back into the main tank. This overflow line should be large enough that the pump can't build up unwanted pressure in the header tank. Muffler pressure into the main tank will still be felt in the header tank.

What if you got rid of the vent line and placed a check valve on the pressure line to make sure your tank stays pressurized (sp?). Would that effectively eliminate the need for a fuel pump?

With the check valve, the pressure builds up too great for use at the idle position and the engine will flood out when you bring it back to idle.

Enjoy,

Jim

thanks for the input

i have never use a regulator and dont know how it works

Click on this link and then click on the picture after it comes up for a diagram of how it is hooked up.

http://www.billsroom.com/pcfs/produc...g/Pcfs1t1e.gif

Here's a link to the Cline Regulator home page

http://www.billsroom.com/pcfs/

Here's a link to the Iron Bay regulator page. You will have to click on the square regulator

http://www.ironbaymodelcompany.com/W...cessories.html

thanks

JM $0.02. If you plumb the vent of the main tank to the engine exaust, you will pressurize the main tank to feed the head tank.

I bought a used Cermark Pitts Byplane with the engine mounted sideways. No one could keep the plane running going inverted. The problem was the tank was way too far below the engine. You had to run it really rich to get it running and keep it running upright, but when you rolled inverted, the tank was way above the fuel inlet and it would blubber rich and die. You could not reposition the tank, due to fuselage design. The cowl was already butchered for the sideways installation.

There was room in the fuselage for a head tank, above the maintank mounting platform. I installed a small two ounce dubro tank above the main tank, the header tank fed the engine and got replenished by the clunk line through the small tank vent by pressure from the muffler going to the big tank vent. This allowed the ST2300 to see approximately equal pressure both upright and inverted. This system works so much better, but hind sight being 20-20, a pump/regulator would have worked fine also.

Happy Landings.