mpi external pump

[stevie78]

Will my mpi external fuel pump run a spi x16 astra engine ?:thumb:

[peester]

wont that be over-fuelling it? you might not be able to regulate fuel pressure..?

[stevie78]

am not sure m8 .get the engine mon

[simonm]

no fuel pressure will be too high for it itll be pumping too much

[simonm]

.

[phazer]

?? The fuel regulator on the rail will control fuel pressure. The pump has nothing to do with it*. It'll be fine.

* unless of course it is underspec'd for the fuel demand. In this case not as the 1.4 MPi pump is fine on a 2 litre engine.

[Adam]

As Phazer said, the pump is irrelevant to an extent.
The regulator on the tb will still keep the pressure low enough for a SPi system.

Its the other way round that doesnt work, SPi pumps cant pump against 2-3bar pressure like a mpi system needs.

[stevie78]

cheers lads too late ripped all the spi **** of ready for all the e16 mpi stuff dnt think i could live with 75 bhp