electric fuel pump with carb tank

[jimbob-mcgrew]

can it be made to work ok ?
I remember reading something a while back about, if the tanks half full or over its ok, is that right ?

would be for a 20seh (much of a drinker ?)

[waggygsi]

mines an electric pump on my nova with a carb tank and its fine??

[Nobby]

Youll just get tank slap on cornering as basically the pump will suck air as theres no swirl pot in the tank

[mowgli]

you could fit a separate feed pump & swirl pot... at big cost.. you could fit a mk2 spi tank with a corsa b/ mk3 astra mpi pump (modded to fit) which would be cheap & tidy.. but, if you run your carb tank much below 1/2 full with an external pump & plan to corner proper fast, on right handers it will suck air & you look a tit whilst it splutters for the next 200yds and will bugger the pump [trust me, you pass someone into a bend & then look like the biggest dick on the planet as they bugger off on the next straight]...

anyone who says its fine simply isn't driving fast enough lol lol

[jimbob-mcgrew]

nice explanation there mowgli lol

I only ask as I cant afford to do the whole lot at once, and the car has to be kept as a daily during the conversion

cheers for replies :thumb:

[mowgli]

a mk2 tank & an mpi pump can be sorted/modded off the car. then its only a few monutes work, once you've removed the exhaust to swap the tank over. you'll need to fit high pressure fuel lines anyway

[chrisd1986]

can you just run a spi tank with a external?

[mowgli]

no. there isn't a pipe for the pump to suck fuel from.

[chrisd1986]

im just gona run a external for now on mine to save on cost

[mowgli]

so where do you plan to connect up the pump?? as the outlet comes out the top pump plate....

you can get a mpi pump from a scrappers out of a daewoo/astra mk3 or a corsa for not much & its (apart from cutting the intake pipe down) a straight fit. the fuel lines should also be ok from the spi to the mpi

[chrisd1986]

im running a carb tank on mine aswell so al just mount it inline either underneath or in the bay

[mowgli]

if you must fit it to a carb tank, do not fit it in the bay.. the in-line pump is designed to push fuel, not pull it... once installed under the car, it takes very little time to get fuel into it. if its in the bay, it takes a lot more effort to get the fuel there. i fitted my first pump there & it killed it pretty quickly.

[chrisd1986]

thanks for the advice