[Ian Anderson]

Randy

As stated above I used a small swirl pot (1.5 litres compared to Lynns 1 gallon monster)

I looked at doing a T out the top of the swirl pot (So the air bleed on the low pressure side) can also return via the pollack valve to the corrct tank along with the returned fuel from the fuel rail.

But I was unsure how often the low pressure unit would be pumping air and hence the HP pump would be emptying the swirl (direct to main tank and not to swirl). Possibly under hard power on cornering with low tank fuel level???? So I decided the safest option was to return the fuel rail to the swirl.

It is definately worth finding out the flow rates of the pump you will use and find out how quickly it can empty the swirl withot the swirl being refilled..

I also ran a 6mm pipe as a return to the pollack valve (8mm pipe from the tanks so the reduced tube results in a small presurisation of the swirl and hence positive feed to the HP pump.

This in turn raised a question in my mind - if the swirl is at say +3psi pressure and the retun from the rail to swirl is full, will that mean that the preset pressure regulator will be runnig at 3psi higher than it was set for? Professionals on the engine I am using said not and I accepted it. (Still could not figure out why not) - It does not appear to have any adverse effect.

All the fuel plumbing is mounted onthe lower space frame chassis (Low pressure pump, pollack, swirl and HP pump) so the pumps should be below fuel level except on the lowest of tank levels.

Ian