Fuel feed and return
Turbo Mini Forums

What would be the best diameter fuel pipe/hose to use for the feed and return? I'm going to be running a facet silver top electric pump. Iv got the standard fuel pipe from the tank on a 71 van but think it's 5or 6mm diameter and iv heard 8mm is what's needed. Is this correct? Want to check before I fit it all and clip it up tidy only to have to rip it all out again for a larger pipe. Any advise will be greatly appreciated!!!!

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A facet silver top will not be up to the job for turbo use, you want an injection pump. 8mm is what has been fitted to shauna's car recently (998 turbo around 80ish hp) and will be fitted to my own car (eventually aiming for around 170hp 1380t) so that should do you fine!
Better still than an injection pump is an spi tank if running no more than 10psi boost, and an mpi tank for as much boost as you can possibly throw at it! (fuel pump capability needs to be able to supply 4psi base fuel pressure + boost pressure).
Hope that is of some help!

Edited by Carlzilla on 3rd Sep, 2014.

ok thanks for the info! what fuel pressures should I be looking for in a pump, the engine is the works engine from med engineering so need something with a bit of oomph cos im a bit partial to a bleed screw lol an spi tank is not really an option cos I got a 71 van.
cheers

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Ahh true, forgot about the van part! You want something around 2-3 bar capable really, just an external pump,have a search on here as there's been a few people on here to have modified the tank to give a more stable fuel feed, as van tanks can suffer from surge/starvation as it sloshes about.

2 to 3 bar not psi right, plz excuse the ignorance been up with the baby since 5am yawn!!!!

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Use 8mm small bore central heating pipe from B and Q for feed and return unless you are going for silly boost.

Hmmm sillily boost . I'd rather over compensate the fuel lines. Than melt a hole through the crown of the piston on my old Volvo 480 turbo!!!!!

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Sill question but 8mm internal diameter yea??

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Yeah 8mm ID, we used microbore copper pipe as suggested above

Awesome thanks buddy!!

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Franky4x4 where in Swansea are you? If your local I can drop a coil of 8mm to you, I know a guy in City Plumbing

They don't die, they just get faster!

Well done Shauna. That's proper TM love there!

In the 13's at last!.. Just

Hi Shauna I live in skewen about 2 miles from swansea. if you could do that, that would be amazing!!!

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Drop me a pm and we will sort something out for the weekend (:

They don't die, they just get faster!

I used the gas stuff as it was re-enforced with an external rubber coating. I thought it might help with the odd stone.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

bear in mind the central heating stuff is external not internal diameter. Having said that, I'm running 8mm supply and 10mm return

this may be of interest http://www.turbominis.co.uk/forums/index.php?p=vt&tid=360159