Plus 2 fuel tank baffles.
Posted: Sun Dec 18, 2016 1:50 pm
All my research on this site seemed to suggest that the standard tank did not contain baffles.
I therefore decided that I would need to use a swirl pot and all the associated paraphanalia to feed a fuel injection pump.
I have just removed the sender unit to install a return pipe and I can see that the tank does indeed contain baffles.
This is a road car so sustained high speed cornering isn't the issue, more of a short duration thing on say twisty roads or at a roundabout when the fuel will certainly slosh about and it looks like the tank would need to be really empty for surge to uncover the outlet (but I have no experimental data to justify that thought!). I can also see an advantage, in terms of better cooling, if the return fuel goes straight back into the main tank.
So now I'm thinking of gravity feeding the injection pump, with a pre and post pump filter, piped to the injector rail, regulator, then back to the tank via a fitting in the sender unit with a pipe terminating near the bottom of the tank.
However maybe this is insufficient baffling when using a high pressure pump?
And maybe a swirl pot has some other advantage, maybe fuel sloshing about in an emptyish tank gets air mixed in which a swirl pot should resolve?
What do you guys think?
Dougal.
I therefore decided that I would need to use a swirl pot and all the associated paraphanalia to feed a fuel injection pump.
I have just removed the sender unit to install a return pipe and I can see that the tank does indeed contain baffles.
This is a road car so sustained high speed cornering isn't the issue, more of a short duration thing on say twisty roads or at a roundabout when the fuel will certainly slosh about and it looks like the tank would need to be really empty for surge to uncover the outlet (but I have no experimental data to justify that thought!). I can also see an advantage, in terms of better cooling, if the return fuel goes straight back into the main tank.
So now I'm thinking of gravity feeding the injection pump, with a pre and post pump filter, piped to the injector rail, regulator, then back to the tank via a fitting in the sender unit with a pipe terminating near the bottom of the tank.
However maybe this is insufficient baffling when using a high pressure pump?
And maybe a swirl pot has some other advantage, maybe fuel sloshing about in an emptyish tank gets air mixed in which a swirl pot should resolve?
What do you guys think?
Dougal.