Fuel LIne Sizing - Team Camaro Tech
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post #1 of 4 (permalink) Old Mar 26th, 11, 06:30 AM Thread Starter
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Gav
 
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Fuel LIne Sizing

Im currently setting up a stack crossram with an ezi efi from fast..My questions are regarding fuel lines from tank to rails and return line sizes (sbc) .. ive spotted 200 series teflon braided line by speedflow in -8 on ebay.. would that work ? or should i use hard lines from front to back?

what is the sizing for the lines from the fuel rails ?

thanx

RHD 69' 8 STACK INJECTED 383,FAST ECU, TREMECT56 6 SPEED, ATS ,SPEEDTECH, QA1s, HOTCHKIS, RUSHFORTHS , MOSER POSI 3.7, MAGNAFLOWS, ETC ETC


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post #2 of 4 (permalink) Old Mar 26th, 11, 07:26 AM
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Maurice
 
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Re: Fuel LIne Sizing

Most of that stuff is 3/8" or -6 AN equivalent.

Im running a ZZ502 with Holley MPFI and decided to run hard lines. I purchaced the 3/8 stainless from Inline Tube here in Michigan. I bought 2 lines, 1 for feed and 1 for return. the lines are beautiful and are an exact O.E. fit. I has previously considered running braided hose and reflon but liked the clean look of the hard lines. braided lines are typically large O.D. and require a lot more space to run than hard lines.braired hose or teflon can be expensive,hard to contour and impossible to bend into tight radiuses without damage to the lines. I took all these issues into consideration and decided to run pre-bent stainless hard lines. I will use short runs of braided to attach the hardlines to the EFI and fuel tank.

and if your not aware, just alittle heads up here. I would NOT use the cheap tube adapters from summit,earls and other manufacturers to connect your hardlines to your injection, they are not sufficient to handle the pressures of fuel injection. you can get stainless steel high pressure aerospace quality tube to AN adapters fron swagelok. their about $12-14 each I think and well worth the money. or you can buy the junk low pressure aluminum ones from summit or jegs for around $7-9 each, and replace them when they leak.

kinda went off on a tangent, but just wanted to save you time and money. just letting you know what works.

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Last edited by 68zz502fi; Mar 26th, 11 at 07:39 AM.
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post #3 of 4 (permalink) Old Apr 2nd, 11, 11:28 PM
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Gary
 
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Re: Fuel LIne Sizing

What I've been thinking also. For my 70 EFI project I am planning to use my existing 3/8 as the return and order a new 3/8 for the feed. Double clips should make it all look pretty factory with the slight offset that it creates.
Thanks for the heads up on the swaglok, Maurice.

Gary 9t4Z
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post #4 of 4 (permalink) Old Apr 3rd, 11, 11:17 AM
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Maurice
 
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Re: Fuel LIne Sizing

Quote:
Originally Posted by 9T4Z View Post
What I've been thinking also. For my 70 EFI project I am planning to use my existing 3/8 as the return and order a new 3/8 for the feed. Double clips should make it all look pretty factory with the slight offset that it creates.
Thanks for the heads up on the swaglok, Maurice.
yup, that sounds like it would work fine. ...always glad to try to help.

BE different....ACT normal.

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