Sorry for the delay in updating this issue. But my reasearch showed the car actually had no fuel pressure regulator at all, So I installed a Automotive bypass regularor, a super quality piece. I switched to AN fittings and once I get everything plumbed correctly I have a constant 54psi fuel pressure. And so far the hot start issue looks like it's gone. The weather has not been real warm but so far it has been performing perfectly. Running a little better too.
Thanks everyone for your help. Graham On Tue, Mar 27, 2012 at 12:15 PM, fast G <[email protected]> wrote: > I am hoping you guys can help me because I am really confused. > > I have a Miata powered Locost 7 based on a 2002 1.8 Miata (return less > injection). The car has a hot start issue, it runs well, if I switch it off > it re-starts fine. If I switch it all and wait 5 mins it will not restart > until it cools down, say 20 mins. I got the car built so I do not > understand why the fuel system is plumbed the way it is. But to me it looks > totally wrong. To me it looks like the feed line goes to the fuel surge > unit, the return line goes to the evaporator canister, and the vent line is > just vented to the atmosphere. I am not sure I have a fuel pressure > regulator at all. > > The first picture is of the tank > > > http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115835.jpg > > The hose at 2 o'clock goes to the evaporation canister. 4 o'clock is the > fuel feed. 9 o'clock in a vent line, just vented to atmosphere. > > Picture 2 is the evaporation canister were the 2 o'clock hose goes. > > > http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115905.jpg > > Picture 3 is the surge unit.were the 4 o'clock hose goes > > > http://s562.photobucket.com/albums/ss63/fastgxc/?action=view¤t=2012-03-24115921.jpg > > So I am thinking that I don't actually have a fuel pressure regulator at > all. > > I am looking for a plan of action to work all this out. > > What do you think? > > Graham > >
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