Which Fuel Injection Lines are the best?

[DKDMC]

I want to replace my Fuel Injection lines. I am curious to know which set you all consider to be the best? I am paranoid about this whole fire thing and I want to change them out ASAP.

[David T]

I want to replace my Fuel Injection lines. I am curious to know which set you all consider to be the best? I am paranoid about this whole fire thing and I want to change them out ASAP.

The OEM lines seem to be, for the most part, pretty long lasting. That said, if they have been abused, kinked, stretched, or otherwise damaged, they don't leak. What does leak can be the seals at the ends but that can happen with any lines, even new ones. What I do think could be replaced are the lines around the fuel accumulator and the fuel pump. The ones in the engine compartment are usually OK.

[DMC-81]

I want to replace my Fuel Injection lines. I am curious to know which set you all consider to be the best? I am paranoid about this whole fire thing and I want to change them out ASAP.

Hi there,

I don't think there is any one set that is the best. I think it comes down to price and good communication/customer care among the vendors. I have DMC's kit. They fit like a glove, look good, and I like that they were individually marked with part numbers to help installation. I can vouch for DMC's customer service and follow through.

Here are a few pics:
48203 48201 48202

I got the feed and return lines from DeLorean Club-UK and I'm happy with them. I just needed to add my own black heat shrink tubing. I have yet to install the return line.

[Nate88]

I went with DPI's kit. I liked that it had 13 lines instead of 9 DMC offers. It is a little bit more expensive, but you get more lines. The shop is installing them now so no pics yet.

[MML]

I went with DPI's kit. I liked that it had 13 lines instead of 9 DMC offers. It is a little bit more expensive, but you get more lines. The shop is installing them now so no pics yet.

Same. I heard good things about them, so I ordered a set. Still have to install them though.

[Jonathan]

What do you guys with these new fuel line kits do with the frequency valve? Do the kits include the two hoses for either side of the frequency valve? Do you reuse the FV and if so, what's the recommended way to swap it over to the new lines without damaging it?

(Old question, I apologize, just one that's never been answered to my knowledge).

[Delorean Industries]

Our kit does offer the lines to and from the frequency valve.

[Jonathan]

Our kit does offer the lines to and from the frequency valve.

And what's the method for removing the old lines from the FV and installing the new without damaging the FV in the process? The connections right at the FV aren't threaded and I was under the impression those hoses had to be cut off in order to remove them?

[Delorean Industries]

And what's the method for removing the old lines from the FV and installing the new without damaging the FV in the process? The connections right at the FV aren't threaded and I was under the impression those hoses had to be cut off in order to remove them?

One side is threaded and we machine custom fittings for it. (pressure side) The return side has a section of FI hose jumping to the JIC connection point. To remove the old line section you simply use a razor blade to remove factory plastic line barb. Very easy to do. Over 500 kits sold so far with no issues.

[Slammer]

Martin Gutkowski also sell a 13 hose set at a good price.

[sdg3205]

I installed DPI's full set in blue in the spring. Josh also includes new injector boots/seals, which was awesome. The FV line swap isnt the difficult one to change, it's the return line at the hard line that is the hardest one to change. You have to get two wrenches down there in a confined corner and try not to break anything requiring separating from body from the frame!

[Chris 16409]

Martin Gutkowski also sell a 13 hose set at a good price.

This is the set I have. Martin was the only guy offering all 13 hoses several years ago. So I went with his. He includes all new banjo bolts and thick copper crush washers.

[DKDMC]

Thank you all for the feedback. Much appreciated!

[bfloyd]

Like Dave mentioned above, I've also got DPI's Blue fuel lines on my car. The fittings on the ends of the line can be oriented pretty easily to avoid any binding. I get a lot of compliments on them at car shows.
http://i.imgur.com/dQBmITlh.jpg
http://i.imgur.com/hZQ5jsgh.jpg

[DKDMC]

[QUOTE=bfloyd;211787]Like Dave mentioned above, I've also got DPI's Blue fuel lines on my car. The fittings on the ends of the line can be oriented pretty easily to avoid any binding. I get a lot of compliments on them at car shows.]

Wow. Looks great. I need to get my engine compartment looking this good!

Thanks for the photos!

[gulwng3]

Does any vendor offer the 13 line kit in red? I've found 9 lines and 12 lines in red, but never all 13.

Andy

[Delorean Industries]

Does any vendor offer the 13 line kit in red? I've found 9 lines and 12 lines in red, but never all 13.

Andy

We only offer 10 in red at DeLorean Industries. I can price out making the last three in red if you would like.

[dmruschell]

+1 for DPI lines. I have their entire set on my DeLorean and completed the lines that DMC doesn't sell with DPI lines on my wife's DeLorean that came with DMC stainless lines.

Besides DPI offering all 13 lines, they also offer different colored or clear sheathing. The sheathed lines on my D stay clean, and it's easy to wipe off any grime that may stick to the sheathing. On my wife's D, little bits of black grime get stuck in the stainless weave. Eventually, it will look dirty and is difficult to clean.

[novadmc]

another +1 for DPI lines.

They also make working on the engine easier, giving more access to bolts/fittings since there's no thick rubber sheathing over the lines like on the NOS lines. when i installed mine (thanks dmruschell for the install assistance!) back in May, i did all of them except the return line because its lower pressure and i didn't feel like messing with that hard to get/deal with triple nut... thing. luckily my NOS lines were found to be in pretty good nick, but i err'd on the side of caution to replace them. the only real gotcha when replacing the lines is checking for and tracking down any residual leaks around the banjo bolts post install - and always using fresh copper washers if a leaks is found and cant be fixed by simply tightening up fittings (to within torque specs :) )

[DKDMC]

I have replaced all my lines. I have to say, this is an easy job and IMHO it is such a huge risk not to replace them. Not only do the new lines look a million times better, Why would any of us risk having one of our amazing cars burn up because we didn't bother to replace a set of lines that cost under $350 (for the most expensive set). Change your lines guys! It gives great peace of mind. It's not worth the brain damage!

[rickjames8]

What hoses are missing when you purchase a 9 piece set as opposed to a 13 piece set? Of those, are the 9 the most vulnerable, or the remaining 4?

It wasn't until someone mentioned to me the other day that these were original, and a potential hazard, did I even consider it. I'm not concerned with engine compartment appearance, just want to be safe.

Also, would a car that has been garaged and driven more that having sat, be more or less prone to failure?

[Chris 16409]

What hoses are missing when you purchase a 9 piece set as opposed to a 13 piece set? Of those, are the 9 the most vulnerable, or the remaining 4?

Here are the line other 4 lines in no particular order:

#10 feed line from the fuel filter

#11 return line to the tank

#12 inlet to frequency valve

#13 outlet from frequency valve