[Bluethunder1975]

Originally Posted by Ollie

Thanks, Bluethunder.

That gives me ideas for my set up.

Is the sender compatible with the 2nd gen gague?

No problem.. I have 100s of pics from my nut and bolt rebuild.

As far as mods go, it was pretty easy. Probably took an afternoon. The sender was from a late 80s firebird v6 with multiport. I replaced the old pump with a new walbro 255lph.

Once I was done, I plugged off the other lines, and pumped 10psi shop air in, and leak checked the tank. Had a few pin holes that needed some attention.

Yes, the sender is a 0 to 90ohm, which is the same as the one in my 80. I'm not sure about other years though

[Ollie]

Yes, 90 ohms has been a GM standard for years. Do You recall how deep Your tank is? did You have to modify the sender for the tank depth? This is a photo of the sender I have, it is about 10 1/2 deep.

[Bluethunder1975]

Originally Posted by Ollie

Yes, 90 ohms has been a GM standard for years. Do You recall how deep Your tank is? did You have to modify the sender for the tank depth? This is a photo of the sender I have, it is about 10 1/2 deep.

I think i had to take an inch out of the the unit, and I know I increased the bend a little. I had the sender out this weekend, and it looks like I moved the resistor to work in the bath tub baffle. I do know there was not alot of fab work in making the sender work. Just some tweaking to get it to fit.

When I put it together, I tacked the ring in, and put the sender inplace, and set up the float, and pump location in the baffle, while I still had the great big hole in the top, so I could see what it was doing.

Is that a third gen sender? Mine had a real curve to it foward (opposite of the fuel lines)



Here is a pic i found. I wound up turning the baffle 90 degrees from this. The pump is off in the pic as well, But the pick up is near the front of the tank, near the lowest point, around the same location as the original pick up.



Here is a link for a handy guide I roughly used when I looked into this conversion. The section on tanks is about all i used.

http://www.ultm8z.com/EFI%20swapper%27s%20guide.pdf

[Ollie]

No, The sender is not a 3rd gen. If I remember correctly it is a 97
Buick. I am going to a GM dealer later to get the "O" ring seal, I will check the pn for the applaction.

[Bluethunder1975]

Originally Posted by Ollie

No, The sender is not a 3rd gen. If I remember correctly it is a 97
Buick. I am going to a GM dealer later to get the "O" ring seal, I will check the pn for the applaction.

Cool stuff..

What application are you going to put this in?

[Ollie]

79 Z code TA 455 with megisquirt controled EFI, Edelbrock EFI intake. Sd Performance prepaired KRE 290 cfm heads and roller cam. Ram Air Restorations 3 1/2 inch oval exhaust.

[Socrates]

Cool thread! May I ask, for those of you having done the TBI or EFI swaps here, do you have MPG numbers or track times you could share? I know the TBI gets a lot of flack as factory set, though with a Megasquirt it seems like a nice option for a street car. I'm collecting parts for on a TBI swap for my Scout II's 345 for a few more MPG. I understand the 454 truck TBI's are much larger, flow more and have a more aggressive fuel curve possible vs the more typical 350 TBI's? Which TBI setup are you guys using?