Fueling & Injection - where do I buy the T fitting to run twin pumps

my 2 walbro gss 340s came and i am going start the install and have read the stickys(thanks ls1 tech) but i need to know where to buy all of the supplies needed, i know i need the T fitting and have heard fuel hose and fuel injection hose, but who sells T fittings??? i want to use what works best and don't want to cut any corner i want to know what works the best because i only wanna do this once .........i wish there was more specific in depth instructions thanks for you help ls1tech

You definitely DONT want a T fitting, you want a decent Y fitting that will flow halfway decent. The only one we use that anywhere near compact is a stainless steel Y about 1.5" long and 3/4" wide, much more compact than the yblocks you can get at Summit etc

And onthe hose reg fuel injection hose is not good enough for in tank use, you need SAE 30R10 rated submersible line, Ive done many dozens of fuel pumps in these cars and reg hi pressure FI hose (SAE30R9) is not holding up over time. That hose is expensive as hell, but you only need it to get it out of the tank

You definitely DONT want a T fitting, you want a decent Y fitting that will flow halfway decent. The only one we use that anywhere near compact is a stainless steel Y about 1.5" long and 3/4" wide, much more compact than the yblocks you can get at Summit etc

And onthe hose reg fuel injection hose is not good enough for in tank use, you need SAE 30R10 rated submersible line, Ive done many dozens of fuel pumps in these cars and reg hi pressure FI hose (SAE30R9) is not holding up over time. That hose is expensive as hell, but you only need it to get it out of the tank


I need a short Y fitting, do you have the brand or link to where I can buy one?

home depot sells a 3port but i we only use a 2 port. mity mouse used the 3 port in his write up.

You definitely DONT want a T fitting, you want a decent Y fitting that will flow halfway decent. The only one we use that anywhere near compact is a stainless steel Y about 1.5" long and 3/4" wide, much more compact than the yblocks you can get at Summit etc


I'm interested in this Y as well, where can we get it

this place in texas had them i cant think of there name it will come to me

http://www.charliedigital.com/content/binary/comment-friday-damn.jpg

Dual 340s? What are those puppies feeding?

Duals is not really that big of deal. over 550whp you need to start thinking about using dual walbros. Over 400whp on e85 needs duals. Now the hat trick triple walbros, that is when you are getting serious :)

http://richmondperformancemusclecars.com/photos/mm/images/26310/original.aspx

cheap and ready for the third pump when the time comes

http://richmondperformancemusclecars.com/photos/mm/images/26310/original.aspx

cheap and ready for the third pump when the time comes




Yeah... if they have a 98. Try fitting that giant shower head (:jest:) into a 99-02 bucket.

Duals is not really that big of deal. over 550whp you need to start thinking about using dual walbros. Over 400whp on e85 needs duals. Now the hat trick triple walbros, that is when you are getting serious :)

I'm perfectly aware of this. It is not the fact that he is running duals that impresses me but rather that he is running dual 340s. Good bit of difference in capacity between this setup and the mainstream dual 255 setup.

Regardless I'm still curious about the motor.

I'm perfectly aware of this. It is not the fact that he is running duals that impresses me but rather that he is running dual 340s. Good bit of difference in capacity between this setup and the mainstream dual 255 setup.

Regardless I'm still curious about the motor.

You are not aware of much.... A gss340 is the part number of a walbro 255 pump.

You are not aware of much.... A gss340 is the part number of a walbro 255 pump.

I was under the impression that 340 was the flow rating, I've never heard of anyone call it a 340. Thank you for correcting me, it was my mistake and I take it back.

I was under the impression that 340 was the flow rating, I've never heard of anyone call it a 340. Thank you for correcting me, it was my mistake and I take it back.

Your not the first to make that mistake. I wish people wouldn't call it a 340 it confuses people. Besides the gss340 is still around but most GM applications have been moved to an updated f20000169 part number. Still 255lph rated which is the largest universal pump walbro makes.

ttt.... for more information on the Y fitting

cheap and ready for the third pump when the time comes

so where do you buy it?

check my sticky thread.

Ok, so you got it at home depot. was that in the plumbing section sir?

I have some barbed stainless steel y blocks that I use, not sure where I got them from i got a bunch for projects in the shop, MUCH more compact than the showerhead type stuff

Possibly yeah ..I ll look around in plumbing area..If I find one, I ll post..
Sticky here...:cheers:
Ok, so you got it at home depot. was that in the plumbing section sir?

I have some barbed stainless steel y blocks that I use, not sure where I got them from i got a bunch for projects in the shop, MUCH more compact than the showerhead type stuff

Can you post some pics of this said "Y" block?

Possibly yeah ..I ll look around in plumbing area..If I find one, I ll post..
Sticky here...:cheers:

Its in the tools section, where the air fittings are.

I have one of those fittings on my air compressor. I got mine from home depot by where they sell the air compressors.

MM:What you've accomplished with what you've used is pretty fucking impressive.

I have some barbed stainless steel y blocks that I use, not sure where I got them from i got a bunch for projects in the shop, MUCH more compact than the showerhead type stuff

ttt...for some pics of this part or more information on it.

i bought a stainless y on ebay advertised for lightning duals. cost me thirty bucks shipped but man it is perfect.

mightmouse, so looks like you have the dual pumps pushing through the stock 5/16" or is it 3/8" tube on the lid. How much horsepower do you have? I am wondering if that setup will support 700whp on e85?

I agree...be sure to increase the size of those long fuel lines. It'll save your pumps from having to work harder than they should have to.

that particular set up was not done for my own car, but was done for around 700rw capable.

mine is this
http://px6.streetfire.net/0001/59/57/1909575_600.jpg

mightymouse, are you using the factory tube through the lid or are you using an AN fitting through the lid? I would like to use the factory tube coming out of the lid, just not sure how much whp it will support on e85

answered pm