vanquish

This 1/4 tank rule only applies for dropping in a dual pump setup (03 or 04 Cobra) into a 99-04 GT fuel tank.

The 03/04 cobra fuel hat is not enclosed in a fuel pump "bucket" (like the 99-04 GT fuel pumps do) and relies on baffles within the 03/04 cobra tank to continuously keep fuel around the pumps.

In other words, if you are using 03/04 Cobra pumps in your GT tank you cannot go WOT with about 1/4 tank of fuel or less because all the fuel will be slammed to the back of the tank and create a dangerous lean situation. You could also do what I did and build your own baffle to install in your GT tank.

Bottom line if you are dropping vortech's pump in your existing GT fuel bucket I don't think there is anything preventing you from running less than 1/4 tank.

Regardless of all this I always keep my tank above 1/4 full anyway. With a blower it seems like a good idea to always have the pump(s) submerged in fuel to keep them cool.

Rockwell28

gotcha! thanks alot for that Vanquish

PurpleIcedGT

It seems like EVERYONE around here is getting boosted or nitrous injected or something of the sort lately....goodluck on your build Rockwell! Don't forget to take care of that X pipe....lol kidding kidding.

Rockwell28

lmao I hear you and thanks for that. Good luck on your build too.

Mustang_NTriangle

i haven't had any problems but never really go WOT with a 1/4 tank or less to much money invested to truely find out. Driving normally you will be fine as I have not had any problems.