H22_ash

Hi all, done a lot of reading but cannot seem to get a clear answer.

My project eg hatch is coming along nicely and hoping to have the h22 in there within the next few months.

I have installed a brand new fuel tank, new fuel low level sensor, new fuel sender unit with Walbro 255 pump.

I've ran 3 x an -6 stainless steel braided Teflon hoses from the front bulk head all the way to the tank. One for the fuel feed, one for the return and one to the 2 way valve for vapors.

Is this OK? Or will the pump struggle to keep pressure due to the increased internal hose diameter?

I'd appreciate your opinions on the matter, many thanks.

DooDooBrownEg

Find out the flow rate for the oem pump vs flow rate for Walbro. Or just return the line sizes to oem. Best of luck.

jdblock

The FPR maintains pressure, as long as the injectors are sized for the fuel pump. Run too large an injector, and there won't be enough fuel flow to the regulator to let the regulator regulate.

H22_ash

Perfect, exactly what I was after! I'm planning on installing a decent FPR with IN600 injectors for a H22a8 motor from a prelude, running all motor for the time being. May go turbo later, and would review whether the 600cc injectors would be OK on a turbo setup with that fuel hose diameter.

Thanks guys.