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      04-01-2020, 01:26 PM   #2
///Monika
Second Lieutenant
United_States
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Drives: '18 X3 M40i & '18 M2
Join Date: Jun 2018
Location: North America

iTrader: (4)

A quick update. We were finally able to route the line. The fitment is pretty tight from the LPFP to it's exit point which is the OEM fuel and vent line. The lines are Fuel-It (Aeroquip) -6. Once the line is in place, it's best to pull the line back and forth to verify it's not binding anywhere.

A bit of a guide for others. First and foremost, protect the fuel line from any contaminants. We did so by placing yellow tape over and around the exposed end. The yellow really assists in locating the line from underneath the vehicle. Now, starting at the LPFP, just right of the OEM fuel line (blue), slowly work the line for about 2 feet. If your unsure of distance then lay the line longwise on the seat area and put a piece of tape on it. Keep in mind that you will not be running the line this entire distance, it's merely a guide. If you hit an obstruction then inch back and rotate the line and keep moving forward.

Now go underneath the vehicle. Locate the area where 4 lines ([L]black,black,white and blue[R]) are running 90 degrees just behind the fuel tank (drivers side). We used an LED endoscope and located the line (yellow tape). This can probably be done using a really bright LED but the area is pretty tight. You absolutely want to get that line on the right side of the OEM fuel line (blue; when facing the front of the vehicle). Take a coat hanger and cut it to the appropriate length. Put a 90 on the end and use a heat shrink tube over it (so it's on there tight) so it can grip the line. Now here's where you have to be patient. It helps to have two people. One that can pull the line back and forward as needed. Be very careful not to damage the OEM lines as you may want to put it back to stock one day. Just take your time. Once you have the line pulled, you're good to go. Just make sure that you pull the exact length you need and verify the line can move back and forth. It won't move with ease but you're verifying the line isn't binding or pinched anywhere.

Attaching a photo for reference. The mounts are sold by Summit Racing made by a company called NotchHead. You'll need NotcHead part# 2616-6 for -6 fuel line (cost was $18). We used a 1/4 drill bit, 4mm rivnuts (zinc plated carbon steel) and attached using M4 - 20mm (length) 304 stainless button head fasteners.

We'll take more photos once we receive the fuel filter (Fuel Labs, thanks to F87source for the recommendation) and Aeroquip -6 an push fittings. I hope this helps someone else who's doing this.
Attached Images
 
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