dantecl

Hi folks,

I've received my LQ9 today. Overall it's in decent shape, now the quest begins to put this into my car. One of the things I need to worry about right now is the fuel system. I basically have two options:
1) Keep the current return system on the LQ9 and redo all lines/tank/pump/filter
2) Convert to returnless and redo one line/tank/pump/filter

I'm looking at tanksinc.com for my fuel components, and looks like maintaining the return system is a bit more expensive, mostly because the hose is so damn pricey (I need about 45ft of it for both lines). Seems like a returnless rail goes for ~60-ish? Is that correct?

Any pros/cons of running either system? Or just look at the bottom line ($$) and go with what costs less?

Thanks,

Dante

KCS

iTrader: (20)

This isn't really a topic appropriate for the Internal Section. I'll go a head and move this, but please pay attention next time.

dantecl

My apologies. Thanks, KCS.

Ollie8974

Do not use hose for the entire run. Use hard line as much as possible.

alowerlevel

iTrader: (1)

Use the nylon tubing like the factory does, so much easier & cheaper than dealing with hardline or AN lines & fittings https://ls1tech.com/forums/fueling-i...ttachment.html

Ollie8974

Yes, alowerlevel's link is a good post, using nylon lines and fittings.
It should be a "Sticky"

dantecl

Wow, hadn't seen that type of line before. I still have the original hard lines from my car (a '72 fuel line) and I've read that using it for EFI is a no-no. Anyway, do these nylon lines leak vapor? This looks like a great and inexpensive solution.

alowerlevel

iTrader: (1)

I used the factory hardline as the return line for mine. Ive not noticed any fuel smell from my car in the 8 months mines been done, even after sitting for 3 months in the garage over winter.

dantecl

Yeah that sounds like a good approach. I'd have to flip the rails on my intake though, as the lines come out on the passenger side, near the front.

alowerlevel

iTrader: (1)

Ahh yeah I forgot to say that I used the hard factory vent line that ran to the charcoal canister on my 73, not the feed line, sorry bout that.

96capricemgr

iTrader: (1)

I have used the Dorman nylon line kit for repairs on some friend's cars and it works great. MUCH easier to deal with than braid, and good enough for use in millions of production vehicles.