daniel6718

iTrader: (36)

thers the pressure switch on the top of the ls1 tank, and another connector with 4 wires in it, i assume 2 power the pump and 2 are the level sensor, does anyone know if this is correct and which color wire does what?

Lonnies Performance

iTrader: (16)

2 purples are the fuel level,
Black is ground
Grey is pump power.

Hope this helps.

daniel6718

iTrader: (36)

exactly what i needed to know...by any chance do you know what the lt1 tank has, i cant find any good pics, how many wires and what do they do? im trying to put and ls1 tank into an lt1 car, i know i need to reuse the lt1 level sender, im tryint to figure how im going to get it to work, and if i can use a ls1 racetronix kit

Lonnies Performance

iTrader: (16)

I'll verify the sending unit ohms (as I am currently building a few LT1 & LS1 double pumpers) & post the info later.

What are you doing for the fuel pressure regulator?

The LT1 has 3 wires as 1 sending unit wire is grounded internally.
The sending units will not fit in the opposite tanks.

I could probably build you a LT1/LS1 racetronix conversion pump/harness assembly if interested.

I have weekend hours, so you can call Sunday to discuss if interested.

Lonnies Performance

iTrader: (16)

Here are measured values which could vary slightly from design specifications.

LT1 0-100 ohm
LS1 F-body,Chevy Truck & GTO 40-250 ohm

Hope this helps.