internal Fuel pump used externally??

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deano325t
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Post Mon May 18, 2009 11:32 pm

Hi.
I`m considering buying an alloy fuel tank to try and solve
starvation problems, and wondered if i could use my internal walbro externally (piped to a tank outlet)?

Cheers ,Dean.
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RoadHazard
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Post Tue May 19, 2009 9:45 am

Depending on the pump I guess but some internal pumps may not have enough cooling if not submerged in fuel.
Elecblondie
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Post Tue May 19, 2009 10:10 am

RoadHazard wrote:Depending on the pump I guess but some internal pumps may not have enough cooling if not submerged in fuel.
I have read that BMW pumps do rely on the fuel for cooling.
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JimmyC
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Post Tue May 19, 2009 10:21 am

Use a prefacelift external fuel pump- works a treat
e30_Turbo
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Post Tue May 19, 2009 7:58 pm

Have you been tracking that car of yours hard again Dean?

Good lad!!

You upped the boost yet?

Try a bosch 044 fuel pump, they're proper racing ones, good for 500bhp odd, proper loud too!
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deano325t
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Post Tue May 19, 2009 10:42 pm

Hiya Marky boy hope your well.

just done cadwell in the touring :)
want to cure the starvation problem on the turbo before I take that again.

figured i`d try it on the cheap .

tank and a pump then i guess .

or try the internal walbro externally ..
will it just burn out and give up or set the bugger on fire?


you think bosch over a walbro Mark?

cheers ,Dean.
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baptie0
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Post Wed May 20, 2009 1:50 am

i dont think there will be any problems using your internal pump externally.

why would an internal pump get any hotter than an external one?
they are probably mounted in tank to stop them being noisey.

you could get a swirl pot and feed it from the e30 tank using a standard pump
and feed your walbro from the swirl pot.
there will be no fuel starvation problems if the swirl pot has good capacity.

i have an external walbro on my car and it is pretty noisey :D .