Fuel Pump

[Soldier Mo]

Is it possible to replace the stock fuel pump with an inline model?

[rixGAphx]

'97 V6.

Anything's possible, especially if you throw enough money at it.

But despite the hassles of replacing the GA's FP (step one being to drop the fuel tank, step 2 being to fork-out $250 for a good replacement ACDelco thru NAPA), and inline just isn't feasible or cost-effective.

Step one would still be to drop the tank.
2. Find a fuel-gage float to substitute for the one that's in combination with the stock FP.
3. fabricate a pressure-tight tank closure, in place of the top of the stock FP; having 3 tubes: Fuel out, fuel return, vapor.
4. Fabricate a pick-up tube to suck fuel from the bottom of the tank.
5. Find a safe place to mount an external FP, and reloacte the fuel filter downstream.
6. Fabricate tubes to/from that location, including a suction tube that can stand-up to the suction of a 65psi pump, and which is insulated against heat so it doesn't 'vapor-lock' under low pressure in the summer heat (that is the number one reason nearly EVERY car has its FP inside the tank: no suction worries, since it's 100% submerged).
7. Fabricate new wiring to the new external pump.
8. Buy a quality FI pump and install it.

Then you would be all set to continue thru life, until the new pump also failed.
When it did, you wouldn't have to drop the tank to replace it.
But then, you prolly won't own this GA in another 75k miles/6 years when the pump fails, so all you'll really accomplish is to confuse the owner at that time.

At least Toyota puts an FP access hatch in the car floor under the rear seat, so you can R&R the thing without dropping the tank.
Damned GM engineers.

Good luck,
-Rick

[Matt95GT]

Why are you looking to do so?

You certainly can, but not something to attempt as a way to avoid dropping the tank to replace a dead pump. That dead pump would be an obstruction in the line.

In order to be on the safe side for my increase fuel pressure needs, I'm running the stock pump and an inline booster pump. If you want a stronger pump to support mods, I'd recommend another in-tank pump (Walbro, etc). My inline pump is ridiculously loud, but I didn't have time to drop the tank when I settled on my setup.