ADAM, BEN...... anyone smart :D

Gene FJ20DET · Posted: Tue Dec 03, 2002 7:15 pm Post subject: ADAM, BEN...... anyone smart :D

what size fuel lines would be best for an upgrad????
im using the fj20det, looking for around 200kw.

what size to u recommend, and do i replace all 3? or just the main fuel line???
cheers
gene
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Gemini Driving Yobbo · petrol head Joined: 26 Feb 2002 Posts: 3897

im half smart becaseu i can tell u for sure adam knows becaseu he replaced his not long ago.

Gene FJ20DET

i know that why im askin him. but he went hard core with 1/2 inch or something crazy like that
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spud · petrol head Joined: 05 Apr 2002 Posts: 1106

go the half inch. so long as you have a returnline still. and make it aboot the same size too. you can never have too much fuel available

Gene FJ20DET

there are 3 lines under the car. fuel line, return line, whast the other one????????????????
cheers
also dont u think 1/2 inch is abit over kill and a waste of fuel?? or does it just go buck in the return line?
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spud · petrol head Joined: 05 Apr 2002 Posts: 1106

as long as you have a return line what ever isnt used is retuned via the the retun line to the fuel tank. also it wouldnt hurt to have higher presure fuel pumps put in

Gene FJ20DET

yeah i think the 2 VL turbo pumps should do fine Very Happy

hahahaha

but whats the 3rd fuel line under there 4??????
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spud · petrol head Joined: 05 Apr 2002 Posts: 1106

isnt it a breather line

Loz · backyard mechanic Joined: 05 Oct 2001 Posts: 943

The third is for the fuel vapour seperator on top of the tank.
I'd use 10mm, I went 8mm but should have gone bigger for the hell of it. Buy some steel bundy tube and its not too hard to bend yourself, as long as your carefull. Its not real expensive, cheaper than efi hose. It wont waste fuel because the engine will only use as much as the injectors squirt. And this is mainly regulated by the fuel regulator. 10mm is good, most people stick to original lines in most cars and they dont go too much bigger than 5/16". Heaps enough for 200kW.

Loz

Frederick Stienheld · petrol head Joined: 05 Sep 2002 Posts: 2719

Are you going injection Gene? wouldn't you want to disconnect the fuel return line then?

Gene FJ20DET

fucks me, thats why me asking. lol

its a fj20 offcourse its efi hehehe jokes man.

and i would think (95% sure) u need a return line?
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Frederick Stienheld · petrol head Joined: 05 Sep 2002 Posts: 2719

You coulda spent a lot of money working an FJ20 and then just stuck a single barrel carb on just to be cool. And actually I lied, you would want a fuel return line for EFI. I'm having a non thinking morning, ignore my previous post Smile

Gene FJ20DET

haha yeah, i thought u would need one LOL
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Nick_H · tinkerer Joined: 12 Oct 2001 Posts: 76

im using the standard lines for my injection. i am thinking mine would be lucky to be 110kw (geminis are so gutless)

Ben Wight · backyard mechanic Joined: 04 Oct 2001 Posts: 946

In my opinion, standard size fuel line will deliver enough fuel. I say this because of my own experience, and with another gem that I think made 350hp at the wheels with standard fuel lines.

Ben Wight