Visconti flex fuel kit Fuel line upgrade

[Laurentj23]

I'm trying to upgrade the fuel line to braided line with AN line fittings. I've heard stories where the current lines tend to leak.

For those that upgraded the lines, can you tell me your setup ? Sizes wise...thanks

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[Jayv64]

I can measure what the 6an replacement line would be, I have one at home. But if you still have your factory line I would just buy the precision race works ethanol 360 fittings. It’s what comes in the new kits…. They are really nice and take about 10 mins to install.

 

[razorlab]

I reused my OEM line with the 360 fittings. Works perfectly.

 

[Thraxbert]

Same ?

 

[Habu]

Do those 360 fittings have any dramatic effects on fuel flow/pressure?

 

[Laurentj23]

I can measure what the 6an replacement line would be, I have one at home. But if you still have your factory line I would just buy the precision race works ethanol 360 fittings. It’s what comes in the new kits…. They are really nice and take about 10 mins to install.

What size diameter? 5/16 or 3/8? So I don't need the AN lines?

 

[Laurentj23]

And are the fittings from Visconti kit are the ones that usually leaks?

 

[Loco38SUP]

And are the fittings from Visconti kit are the ones that usually leaks?

Yes if the fuel line is left touching anything in the engine bay. The vibration wears right through it and Kaboom.

I wrapped mine with high temp harness tape and its shows no wear after 3.5 years. I check it every oil change to be safe.

-RJM

 

[Jayv64]

What size diameter? 5/16 or 3/8? So I don't need the AN lines?

https://www.ecstuning.com/b-precision-raceworks-parts/ethanol-360-fittings/601-0240~prw/

All you need is this and your sensor…. The factory lines are 5/16th… the sensor is 3/8.. these take care of all of it for you…. There are many places to get them from… I got mine from ECS cause they had free shipping…. Took about a week… you do need to have your factory line still if you removed it initially, the one with the grey clips….

 

[Damiano]

I think it's worth considering. If you are running ethanol-based fuels. PTFE lines resist permeation much better than rubber lines, which means fewer leaks over time. As for sizes, 6AN works well, but make sure your fittings match the line size for a secure seal. One practical tip: when installing, ensure the lines don't rub against anything in the engine bay use protective wraps if necessary to prevent wear from vibration. I check mine every oil change, and no issues so far.

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