lowlancer Posted October 9, 2006 Share Posted October 9, 2006 Hey guys the new motor needs a fuel return to tank, which my car oddly doesn't have. As such, I have decided I could probably run a return right through my car, under the carpet, out of the way, with high pressure fuel line. I know you can do it under the car with the normal lines, but they need to be covered with metal. Is this a shit idea? Even temporarily till I can get it to a brake shop to bend up some new lines for it... Also, I need some fittings for my surge tank, but they all seem to be in "AN" sizes. I was told my surge tank has 1/4" thread fittings. Any idea which size in AN I need? Churr Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted October 9, 2006 Share Posted October 9, 2006 get 1/4 bsp fittings froma hydraulic shoip mang or just rock on in there with surge tank will def. be able to sort that shiz Quote Link to comment Share on other sites More sharing options...
lowlancer Posted October 9, 2006 Author Share Posted October 9, 2006 Nah anyoine know how to convert the sizes? and legalities of fuel lines through cars? Quote Link to comment Share on other sites More sharing options...
WDE_BDY Posted October 9, 2006 Share Posted October 9, 2006 DELETED Quote Link to comment Share on other sites More sharing options...
lowlancer Posted October 9, 2006 Author Share Posted October 9, 2006 Ahhh didn't even think of that! might just sell my surge tank and get one with tube fittings Quote Link to comment Share on other sites More sharing options...
RT Posted October 10, 2006 Share Posted October 10, 2006 i run efi lines under my car.. and they aren't covered with metal Quote Link to comment Share on other sites More sharing options...
Defcon Posted October 10, 2006 Share Posted October 10, 2006 When I had to make my fuel return line, Zep and I rang up a cert guy and he told us they have to be metal. I think the idea was that the rubber lines could fray over time. Not too sure but thats what i was told. So i ran down to auto stop when they sell metal fuel line by the metre and bent a new one up my self. Matt Quote Link to comment Share on other sites More sharing options...
Gaz Posted October 10, 2006 Share Posted October 10, 2006 Just use normal petrol hose. I got cert with it as my return as I was in same boat as you. Quote Link to comment Share on other sites More sharing options...
isnowi Posted October 10, 2006 Share Posted October 10, 2006 Use copper nickel bundy tube, can buy from bnt and places of such like in a variety of sizes, being copper it is pretty easy to form. As for your surge tank you'll find the fittings will probably 1/4 BSPT. AN fittings are pretty specialised and are pretty expensive, earls and such like use AN. Incidentally a lot of compressor air line fittings are 1/4 BSPT, and they are usually brass which is fine for fuel. Quote Link to comment Share on other sites More sharing options...
BobbyBreeze Posted October 10, 2006 Share Posted October 10, 2006 You can run fuel line through your car, no problems with it. It cannot have any breaks in it inside the car though - must be one piece and have fittings out of the cabin. Mate has bundy tube fuel line running through the cabin in his mini and has no problems at all. He just bent it up carefully by hand. He did it because he does autokhanas etc and didnt like the idea of rocks going into his fuel line. Quote Link to comment Share on other sites More sharing options...
Raizer Posted October 10, 2006 Share Posted October 10, 2006 My subaru's fuel lines are under the carpet from factory. Quote Link to comment Share on other sites More sharing options...
Ogre Posted October 11, 2006 Share Posted October 11, 2006 i was gonna just get the fuel line out some parts car and us that as a return in the colt (as it dousnt have one) and i need a return for the twin carbs, i can use a return strait back in before the pump tho, but in running carbs not efi, so yeah..... Quote Link to comment Share on other sites More sharing options...
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