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  best tubing for fuel lines

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Author Topic:   best tubing for fuel lines
project66
Gearhead

Posts: 246
From: Baton Rouge, LA
Registered: Jul 99

posted 06-13-2001 11:02 PM     Click Here to See the Profile for project66   Click Here to Email project66     Edit/Delete Message   Reply w/Quote
Hey guys and gals-
Can't find fuel line long enough to do my re-route. Was going to a plumbing supply tomorrow to pick up some tubing and do it myself. Not sure I know what I want though.

Looks like 5/16" aluminum on there now. Any reason to get stainless? Most of this is going to be running under the car and there'll be quite a bit of bending involved.

Thanks-
JimO

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Fastback68
Gearhead

Posts: 3053
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 06-13-2001 11:36 PM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
I thought copper was the best (or at least the easiest to work with) - or am I working with Stone Age technology here?

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Doc
Gearhead

Posts: 466
From: Redwood City, Ca. USA
Registered: Jan 2001

posted 06-14-2001 01:16 AM     Click Here to See the Profile for Doc   Click Here to Email Doc     Edit/Delete Message   Reply w/Quote
The very old cars I work on have copper many times, it is not very good for fuel as it hardens with vibration and can crack, we've had aluminum crack on boats and we had one aluminum line go bad on Butcher's racer so it's rare (only if the client demands) for us to use it as well. We use steel for fuel especially on street cars, stainless is too hard to work with for most stuff but it looks cool.

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richard bohm
Gearhead

Posts: 373
From: tucson,az-luray,va
Registered: May 2001

posted 06-14-2001 03:07 AM     Click Here to See the Profile for richard bohm   Click Here to Email richard bohm     Edit/Delete Message   Reply w/Quote
mild steel tubing is the best to use. i considered aluminum at one time but like doc said it and copper work harden and crack. when you plumb the line, use 3/8" tubing for a V-8 unless you are building a very healthy big block then use 7/16" or 1/2"

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project66
Gearhead

Posts: 246
From: Baton Rouge, LA
Registered: Jul 99

posted 06-14-2001 09:00 AM     Click Here to See the Profile for project66   Click Here to Email project66     Edit/Delete Message   Reply w/Quote
Thanks much, folks-
3/8" mild steel and compression fittings it is then. Do you teflon tape these fittings? Teflon is completely inert, right?

Inching closer and closer to a running car. Gotta get a drive shaft and cut it, set up my battery in the trunk, hang my exhaust, rebuild my shifter and set up linkages, and get guages on line and I'm ready to go.

Thanks again-
JimO

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RonnieT
Gearhead

Posts: 827
From: Port Allen, La. 70767
Registered: Jun 99

posted 06-14-2001 10:12 PM     Click Here to See the Profile for RonnieT   Click Here to Email RonnieT     Edit/Delete Message   Reply w/Quote
Jim,

Have you thought about ordering prebent lines from NPD. The V-8 5/16" line cost about $50 and they have all the clips and gromments required.

------------------
Ronnie
69 mach1 351W-4V
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23

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Billgear
Gearhead

Posts: 182
From: Concord,CA
Registered: May 2000

posted 06-15-2001 12:04 AM     Click Here to See the Profile for Billgear   Click Here to Email Billgear     Edit/Delete Message   Reply w/Quote
No teflon on the compression fittings!

------------------
Regards,
BillGear

1966 Coupe
Balanced 302
AFR Aluminum 165cc heads
Custom FTI Cam [email protected]
Weiand Stealth Intake
Hooker Super Comps
T-5 Transmission with 3.55 gears
All the suspension goodies.
www.289mustang.com

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jkilroy
Gearhead

Posts: 1808
From: Vicksburg, MS
Registered: Dec 99

posted 06-15-2001 08:32 AM     Click Here to See the Profile for jkilroy   Click Here to Email jkilroy     Edit/Delete Message   Reply w/Quote
5120 Aluminum, if its good enough for the FAA its good enough for me. It is much easier to flare than steel.

------------------
Jay Kilroy
68' Fastback GT 390
"No such thing as a cam thats too big"

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project66
Gearhead

Posts: 246
From: Baton Rouge, LA
Registered: Jul 99

posted 06-15-2001 08:44 AM     Click Here to See the Profile for project66   Click Here to Email project66     Edit/Delete Message   Reply w/Quote
Well-
Finally ran down some 3/8" stainless tubing. Got a flare-less fitting (swage-lock?) for my splice while I was at it, came home at got at it. Figured I could rework the existing line and get almost to the wheel well, use the new piece for the last bit. Length is right, but bending the tubing that's on the car is murder. Getting there though. Lacking the required zen (and mounting loops), I left it to come inside for a beer. Will tackle it tonight with a more suitable attitude.

Yeh, Ronnie- looked at the prebent tubing. Figured I could do it cheaper- heh!

No teflon- OK. Thanks, Bill.

Good day, folks-
JimO

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