spi>carb

[nova302]

planning a change from single point injection to carburettor. Jus wondered if i can by pass the single point injection fuel pump when i put the manual pump on. Or do i just leave the existing pump in the tank and disconnect the wires?
cheers

[david dixon]

Dont bother mate.

[nova302]

i wanna make the car sr spec so just wondered really and was also thinkin of t40 at a later date?

[Adam]

To change it to sr carb etc,
you need sr inlet manifold, carb etc.
You could use your electric fuel pump and a pressure regulator to bring the pressure down for carbs.
Or use a carb fuel pump, but that means you need an sr cam etc that has the extra lobe to run the mechanical fuel pump.

[Aragorn]

the spi pump only kicks out 10psi anyway

a normal fse carb regulator will work fine

[nova302]

i got all the gear on the way so i wont need to use the spi pump. If i disconnect it will the fuel flow through it? Alos what will i need to do about the little ECU thing?