Are alloy fuel lines "Engineer" approved.

[malbaby]

Intending to run alloy fuel lines underfloor of a car that requires Engineer Certification....OK to use??

[39ClevoUte]

I always engauge my engineer at the start of a build. That way they don't mind answering questions along the way. It also gives them a heads up on what you have done and results in no surprises for either of you at the end.
Many engineers have personal preferences. Some enforce their preferences and others will approve anything that is approved/legal, but not necessarily their preference.

[malbaby]

So using alloy without Engineer approval may be risky??
For absolute certainty, I should use copper or bundy?

[39ClevoUte]

I don't know mate, have a read through this
https://www.infrastructure.gov.au/si...Jan2011_v2.pdf

If your getting the car engineered, I'd ask one.

[Itsme]

I cannot see any reason why alloy tubing would not be suitable for fuel lines since a lot of modern vehicles now use plastic fuel lines.

[mad2]

Originally Posted by Itsme

I cannot see any reason why alloy tubing would not be suitable for fuel lines since a lot of modern vehicles now use plastic fuel lines.

and have since back in the 70's

[malbaby]

Thanks guys....very helpful.

[XRtowcar]

You could try stainless steel tube.

[Dr Terry]

It depends on the type of fuel to be used.

If you're using E85 don't use alloy, it corrodes, use steel bundy or plastic. You can use stainless but it is very hard to work e.g. flaring etc.

I'm not sure but I don't think that copper tubing is permitted for automotive use. It fatigues & cracks much too easily.

Dr Terry