dhdenney

iTrader: (53)

OK I didn't search as long as maybe I needed to... Are you all whacking the stock lines off at the top of the fuel pump assembly and installing bulkheads? Or are you simply adapting the big line to the end of the stock hard lines that come off the pump? (You know the big 90* ones.)

ss1

iTrader: (32)

What kind of car? Which tank, metal or plastic?

On F-bodies with the metal tank, some modify the sending unit and install bulkhead fittings. On the plastic tank, you're pretty well strapped to use the stock plastic sending unit.

veee8

iTrader: (40)

On my metal tank sending unit, I cut off all the stock stuff, flattened it out. Installed a -10 90* bulkhead and a -8 90* bulkhead, all new 10 gauge wires for the fuel pumps and sealed everything up with a special 2 part epoxy. Still uses the stock sending unit and had the hanger welded to the top of the sending unit. I run 3 walbro in tank 255's.

dhdenney

iTrader: (53)

Three? Holy dang. This is in my 94 so it's all metal. I will take the assembly out tonight and get a game plan. I was thinking the whole time I would be cutting of the stock lines but never saw anyone do it in pics. What do you think of brass/copper fittings from the plumbing store (they're about 1/3 the cost)?

Funkybird

iTrader: (4)

Summit sells some fittings that adapt from the oem metal line to AN. This is how i'm doing mine and alot of others do theirs as well.

dhdenney

iTrader: (53)

I'm not so much worried about simplicity but function. I don't want to bottleneck the system.

veee8

iTrader: (40)

May not be a great idea with today's ethanol enriched fuels. Anodized bulkhead fittings are not that expensive, Be sure to get some teflon sealing washers and nuts.

Old Geezer

iTrader: (3)

"What do you think of brass/copper fittings from the plumbing store
(they're about 1/3 the cost)?".
Likely not AN fittings.. They are probably 45* flares.

dhdenney

iTrader: (53)

AN fittings look like pipe fittings to me. I'm not sure on the flare part. It looks identical to me.

Old Geezer

iTrader: (3)

The flare is not the same.
AN is 37*, common plumbing flare is 45*.
As for the other end:
AN fittings can be had with either straight threads, used w/ o'rings seals, [IE: fuel pumps, regulators, fuel rails, etc], or with the common tapered threads, such as used in hardware plumbing.
If you are referring to the threads on the flare end... the AN fitting may screw onto them, but the seal surface won't match.

ss1

iTrader: (32)

I'm not quite sure what you're saying here, but AN thread does not = pipe thread.

I'm pretty sure Old Geezer is correct about the brass fittings being 45 degree. However, I've seen people use them with the 37 degree AN fittings. Myself, I like to do things right the first time. I'd just go ahead and get the correct AN fittings for the job.

dhdenney

iTrader: (53)

I was saying the threads themselves are the same. I just wasn't sure about the flare part but just looking at them, they look the same to me.

bgblockelcamino

iTrader: (9)

i sumped the stock metal tank and ran a -10 feed. and used the stock feed for a return line

dhdenney

iTrader: (53)

Yeah I'm gonna use the return option as it's easy. However, I'm starting to think I could have just sumped it now that I'm into this mess. Haha.

bgblockelcamino

iTrader: (9)

that is how i looked at it too. i personally have not had luch with multiple in tank pumps. and the setup now is very simple.

dhdenney

iTrader: (53)

My dad could have welded it up as we have tons of scrap laying around. I just would have had to bought the pump.