My Efi tank solution
 

Boyd's tank for 350$ plus a used ls1 pump for 35$ off eBay.

Attachment 1028141
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Re: My Efi tank solution
 

The ls1 pump assembly has a built in fuel regulator for a returnless fuel system. I removed it since my system had a return and used a basic 3/8 to 3/8 10$ fuel filter.
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Re: My Efi tank solution
 

Check to see what pressure that ls1 pump puts out, for the Lsx, you need 58psi at the rails
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Re: My Efi tank solution
 

my external setup has worked fine...but if/when it fails I've thought about doing something like this.

Re: My Efi tank solution
 

My truck has a fuel regulator on the fuel rails. That's why I removed the fpr in the pump.
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Re: My Efi tank solution
 

So you have a return style fuel rail? if so how do you have your fuel lines set up?

Re: My Efi tank solution
 

Yes, I have a return from the fuel rail. I just run the return to the pump return. Pump feed to a cheap filter to the intake feed.
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Re: My Efi tank solution
 

Do you have a list of the items you used for it and any pics?
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Re: My Efi tank solution
 

Dorman 800-075 that will be the feed 3/8 line
Dorman 800-074 5/16 return line
Dorman 800-075 5/16 fuel fittings
Dorman 800-082 3/8 Fuel Line Fitting
Motorcraft FG1083 Fuel Filter 3/8 push connect ( may be wrong its been awhile) also this is only a filter. it does not regulate fuel pressure
Spectra Premium TR7 Fuel Tank Lock Ring

Total is about 60$ so not bad for the parts listed above. The fuel system will cause the most headaches in a LS swap. Either spend big bucks for a aftermarket setup or piece together a OEM setup in my opinion. Anything else can be a gamble. I have had every external fuel pump fail. Not worth it. Every customer has had their external pumps fail within 6 months. I know some others have had better luck but it is not worth the headache and stress.

If you need a regulator for a none return system get this
WIX Filters - 33737

New AC delco Pump https://www.amazon.com/ACDelco-Assem...1%2C3937584011

Re: My Efi tank solution
 

thats exactly what im doing! i havent figured out how to install the factory locking ring yet. Can you post a close up picture of yours? How did you secure the locking ring?

thanksd

Re: My Efi tank solution
 

I don't have a pic but we just drilled and tapped the tank for small screws to hold the lock ring tight. The aluminum is thick enough. If it is stainless steel then that wont work.

Re: My Efi tank solution
 

i gotchya. thanks for getting back to me