Jump to content
SAU Community

Recommended Posts

in tank fuel pump standard wire -

each 044 pump has own wiring apart from, wire from battery splices to each relay the rest is individual wiring from relays to pumps

wire roll says 3mm 10a

hope what i am describing makes sense

Edited by Reese69
  • Replies 48
  • Created
  • Last Reply

Top Posters In This Topic

The setup sounds fine, just need to make sure you are running the right gauge wire. Does it look like this:

3mm 10a wire:

20111017003746741.jpg

Or like this:

8-gauge (round about 50a) wire:

C032004-05.jpg

That 8-gauge wire is the absolute minimum I would feel comfortable running from battery to relay for a single pump. If I was splicing that wire into relays for 3 pumps I'd be using 4-gauge wiring, which would admittedly be overkill but wire isn't such a great expense that I feel the need to be stingy about it.

10a wire is whats generally used...

8 gauge is way overkill... :woot: not to mention really thick and hard to hide around the car.. besides, how do u crimp and wire it to relays etc?

On a setup that can potentially see over 20a just in normal operating conditions, 10a wire is never going to cut it. Look at this:

E85_Table.jpg

These pumps draw 15.29 amps just at base fuel pressure. Hence why Resse69's 10a wire burnt out.

8-gauge is not that big, it's your general sound-system size wiring. Not that hard to get around the car, in fact when I had amps and my battery in my engine bay I had three 8GA cables all running the same route and they were invisible. You don't want your wiring to be the weak point of any electrical setup, but especially not in your fuel system.

As for wiring, that's easy. Use a horn relay with big terminals, and connectors to suit the wire size.

10a wire is whats generally used...

8 gauge is way overkill... :woot: not to mention really thick and hard to hide around the car.. besides, how do u crimp and wire it to relays etc?

As mentioned, 8 gauge isn't hard at all to use. I can't remember exactly but pretty sure the wiring should be capable of double the intended load. Not to mention reese had burnt out 10a wire numerous times, how can you say it is ok?

Edited by superben

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Sorry to hear your HFM BM57 was faulty,  did you contact HFM I would hope they would be at least grateful for the information if there was some sort of manufacturing fault, you would hope they would be sympathetic even if your item was 2 years old if it had never been fitted. May I ask where it leaked from ?
    • Cats are called Bella, and Donna...  Like that poisonous plant And I remember your 2 monsters, I remember making a little bit of wee when you let them out... LOL I have already installed cat doors into the laundry where their kitty litter is, and the sun room, apart from the cat doors there's not going to be any permanent mounted stuff on the interior walls (interior doors are cheap and easy to replace) I will get a outdoor cat cage thingie once I finish the landscaping out back... https://catnip.com.au/ The only off limit areas are the main bedroom and the gym room....but, currently the cats are curled up in bed, in the main bedroom with the Mrs.....LOL, the off limits for the kittens to the main bedroom lasted about 5 minutes with Jackie I currently only have 1 free standing huge cat tree multiple level scratching post thingie in the lounge room, but, I will be getting another one soon now that I'm happy with the furniture layout in the back room and have a perfect spot for it  
    • All of this is making it seem clear that running the Coppermix twin was definitely the way to go, especially in hindsight with how insane tariffs have gotten and the strength of the USD vs yen at the time.
    • That sounds like no chance of even importing one for road registering then Now I see why Duncan wants to check LHD rules for Targa...   I wonder how "bolt in" the AWD would be if you got one imported from the US and swapped it to an AUD one
    • Not to mention they drive like a bucket of bolts! yuck!
×
×
  • Create New...