I went to the track and the inspector told me that I couldn't run rubber fuel line to my carb if it was longer than six inches. What types of fuel line are OK? What is the exact rule on this?

 

i wasnt kicked off, but i was warned that you are only allowed 6" total rubber nonOEM line.


before i went out the next time, i bent a hard line from my mechanical pump until i was almost at teh carb, then used a much shorter rubber line.


as far as i know, all SS and metal hardlines are ok... i dont know about new style plastic line though.

 

Steel braided lines are acceptable.

 

Thanks!

 

MrDude said it the way i always knew it.

Damn good rule too, even on a street car. Few things make me cringe as much as a rubber line from the pump to the carb. Way too much vibration and moving parts and heat in the area to count on rubber. Especially if it doesn't look lik the owner is a meticulous detailed kind of guy. Inevitably the guy with a 3' piece of rubber line from the carb down has it cinched off with wire ties 1" from the alternator fan Rubber looks older than the car, etc.

 

yea now i know better too...

id just like to add in my defence.. HEY! i was 15, and this was my first car i was doing by myself.....


i was damn proud it even ran.

 

I still can't decide whether to go with braided or steel. My fuel line routing looks like this...

 

if that regulator is mounted to the fender like it looks like, and not on the engine, you dont have a choice.


you need to use braided for atlest the gap to account for engine movement.

so either SSbraided for the whole thing, or bend a line from the carb to that side of the engine.. like the TPI and TBI carbs have, then connect it with a shorter (and therefore cheaper) braided line.

hardline is cheap. SS isnt.

 

Should I just get a length of SS and slip it over the barb fittings of the carb and reg. and secure it with clamps. Would this be OK?

Do you think that I could get it somewhere quick besides mail order?

 

NAPA....

if not there, look up Hydrolics places in the phone book...

last resort would be a local speed shop, but they usually cost $$$


if i were to do it though i would be sure to secure that hose where it would not rub on the engine... that previously mentioned rubber fuel line rubbed pretty thin and i only had it on there about 2 weeks..... SSbraid will take longer... and also take the paint off your motor as it rubs, but its still not a good idea.

i'll post them if i find them, but i recall some great lil stand off clamps that would probly work perfect.......

 

I changed my bad rubber hoses to steel braided line with the proper AN fittings The old rubber hose running from the pump to the carb was split and pulsating like something out of a bad horror movie lol.

 

I redid it today and I just used the OE steel line that has a fitting pressed on to the rubber part that used to go to the fender fuel lines and to the tank. The other end that used to go to the fuel rail had to be cut then I just clamped on some goodyear fuel injection hose. The side is printed with "SAE 30" I wonder what that means?

 

Why not just make solid lines? Its not too hard. You just have to rent a small tube bender from a tool store or auto parts store. I used a tube bender on copper line which was about the same size as fuel line for a school project... worked great. Aluminum tube is probably no harder to work then copper was.

That way, you can just flare the ends and use a coupling nut or a chunk of hose to hook it up to the gas tank and carb. Would look much better then hose anyway, IMO.