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914World.com _ 914World Garage _ fuel line up the tunnel

Posted by: trekkor Sep 12 2005, 09:34 PM

Just use the nothing special rubber fuel line?

Or the SS braided. Or should I say $$ line?

I'm going to run one line only, no return line, as I run Webers. Gravity fed, low pressure.

KT

Posted by: qa1142 Sep 12 2005, 09:37 PM

could rub on things like the shifter. I would not do it.

Posted by: trekkor Sep 12 2005, 10:20 PM

I think SS lines are more durable than the brittle plastic junk.

Careful planning should win out.

KT

Posted by: cdmcse Sep 12 2005, 10:26 PM

IMO, Hard steel lines would be safer to install and cheaper. I got mine from Napa for like $8 each and just slid them in. Granted my engine was out.

Posted by: Aaron Cox Sep 12 2005, 10:28 PM

steel brake lines..

Posted by: Marv's3.6six Sep 12 2005, 10:35 PM

I put a 1" emt conduit thru the tunnel. When I reassemble my car I will put rubber lines inside it!

Posted by: McMark Sep 12 2005, 10:44 PM

Steel brake lines.

Braided.....what?

Steel brake lines.

Posted by: Aaron Cox Sep 12 2005, 10:50 PM

QUOTE (McMark @ Sep 12 2005, 09:44 PM)

Steel brake lines.

Braided.....what? :confused:

Steel brake lines.

yup. big metal HARD steel brake lines.

Posted by: J P Stein Sep 12 2005, 11:26 PM

I used AN6 braided SS. No drama.

Posted by: Travis Neff Sep 13 2005, 12:07 AM

steel brake line.... mucho cheapo

Posted by: J P Stein Sep 13 2005, 12:33 AM

With the braided line, you can run one continious lenght
from the tank to the fuel block......with the engine in place.

Posted by: Travis Neff Sep 13 2005, 12:42 AM

Single line as JP states would be a pretty clean install, but us cheap bastards would cringe at the cost of 20ft of braided lines vs. $8 at flaps for brake line. You can do the steel line with the engine in the car, not so much fun though.

Posted by: RON S. Sep 13 2005, 04:48 AM

I used 3/8" brake line for mine.

The thought of fumes,or fires convinced me that a little extra work might pay off later.

Safety first!

Ron

Posted by: iamchappy Sep 13 2005, 06:18 AM

Ive run both blue line, and now SS6AN and 4AN up the right side of the tunnel.
hoses will eventually break down where as steel line wont.

Posted by: Jeroen Sep 13 2005, 06:39 AM

(stainless) steel or copper hardline...
check the '914 info' link at the top of the page
there's a good tech article

Posted by: billd Sep 13 2005, 10:04 AM

Trekkor, I just replaced both of my lines with solid 5/16 SS lines. I'll post some pictures soon. The line is available from Summit Racing and can be installed fairly easily with the engine in the car if you stop the hard line at the firewall and run hose from there (this is not what I did but what I should have done).

Posted by: Cap'n Krusty Sep 13 2005, 10:21 AM

QUOTE (trekkor @ Sep 12 2005, 08:20 PM)

I think SS lines are more durable than the brittle plastic junk.

Careful planning should win out.

KT

That "brittle plastic junk" has lasted 35 years, and still going strong. If you're talking braided SS as a replacement, I've had nothing but leaks from that stuff, and have quit using is as oil line, preferring the plain black "push lock" hose used for industrial applications. Looks good, works well, NEVER leaks at the fittings, and doesn't look flashy. The Cap'n

Posted by: Series9 Sep 13 2005, 10:57 AM

I have rubber FI (high pressure) lines running the entire length. They're secured away from any moving parts.

To me, the 'safety' argument is pointless. We all have rubber lines in the engine bay and that's the place where a leak is dangerous. A leak in the center tunnel would be noticed immediately and wouldn't be dangerous. I have far fewer fittings in my fuel system, which I think is a very good thing.

Posted by: brant Sep 13 2005, 11:10 AM

endless debate.
but trekkor, you will make minutely more HP if you run a recirculatory fuel system...

(cooler fuel)

something to think about why your there

brant

Posted by: Britain Smith Sep 13 2005, 11:20 AM

I ran stainless lines in my 912 project and borrowed a 37degree flaring tool for the AN fittings...

user posted image

Do it once the right way and don't do it again.

-Britain

Posted by: andys Sep 13 2005, 11:50 AM

Britain,

Great idea; solves a lot of adapting issues for AN stuff. Is that 37 degree flare a single or a double flare?

Andys