Ok I put bad gas (mostly water) through my car and it caused problems. The gas station where I pumped it is telling me to bring them the bill. My car has a forged 346 h/c with a 150 shot and the stock fuel system has been holding up. My question is what fuel pump and injectors should I go with. Car dynoed 550 rwhp and 629ft lbs of tq on 150 shot. I am at work and want to order these today otherwise I would use the search feature. I am leaning towards a walbro 340 and Ford 30# injectors

Thanks
Gilbert

 

My pessimist answer:
Bad gas? As in low octane? I was aware that it is ILLEGAL and a HUGE crime for petroleum companies to put any type of mixture in their tanks...including water. They can get shut down for GOOD.

Stations are regulated for this and MUST check their tanks once a month. IF someone did put water in their station tanks, water sinks to the bottom, and the pipe that pulls the gas out sits about 7 to 12 inches off the bottom. In a 10,000 gallon tank, that would be a lot of water.

I used to work for a petroleum company that is a sole MOBIL branded franchise and you would always hear customers complaining about it. Most times, it is a myth and just a matter of parts failing or condensation from the car sitting for long periods.

A few mom & pop stores may do this to gain an advantage over the franchised stores but believe me when I say they get shut down quickly.

What station was it? Was it a national franchise? If you did pump water into your car (read explanation above), your motor would have hydro-locked and spit the connecting rods out the side (see post on an LS1 owner driving through a puddle).

Here: https://ls1tech.com/forums/generation-iii-external-engine/239843-sucked-water-into-engone-blew-up-getting-new-one-suggestions.html

What problems did it cause? Did you ask them if anyone else came back to complain or filed a complaint? So, immediately after filling up at this gas station, your car ran bad? What did it do or not do? As you can tell I am a pessimist when it comes to people complaining about water in their gas.

My helpful answer:
Go with the 340 and either 30 or 42lb. injectors. Be aware though that you will have to get a new tune with the bigger injectors or your car will run PIG rich.

 

John thanks for the reply if you don't mind pming me your email address I will address all questions. I am at work and am trying to stay off of the internet. The gastation is a mom and pop store with MOBIL pumps. The car sputtered, smoked and died. It made it 2 blocks I am bad with distance but these are short lights I would say probably 60 yards. Initial thought was a clogged fuel filter after removing that (30 minutes after stalling out) a substance that looked like dirty water poured out of the fuel lines and filter as soon as we drop the tank I will be able to tell what it is i m having someone analyze the liquid. 1hr after braking down (my friend individual driving car at time) Spoke to a representative at the Gas station by then he noticed that all the pumps were marked out of order. I prefer to resolve things amicably which the owner of the gas station proves to be doing I will see what type of reaction he has when I show him the bill. Should I be a little more concerned about the motor?

Gilbert

 

Gilbert - will shoot you a PM. Like I said, most time it is a myth but the mom & pop stores are the likely culprits.

It could be anything from their pumps - old style tanks, rusty bottoms, built up accumulation (fuel doesn't come totally filtered), amongst other things.

If that stuff came out of your line I would definately take the time to pull your entire fuel rail, injectors,etc. and have them cleaned.

I will PM this info. , later.

 

A 2003 monte Carlo went in to the Dealership where my friend works and my car is currently at. Same problems I have started yester day around 6pm shortly after he pumped 93 octane.

Should I be more concerned about the motor?

Gilbert

 

As stated before:
"If that stuff came out of your line I would definately take the time to pull your entire fuel rail, injectors,etc. and have them cleaned."

So yes, check to see if any debris comes out of those things. If so, the next step would be to pull the intake and check it for debris...and on and on.

If sand, rust, gunk go by your injectors, which is doubtful, then more than likely some very fine debris got into your cylinders and was going up and down with the pistons.

I am, by no means, an expert in this field. You should talk to some of the motor builders who have dealt with engines that the owners had people put sand or sugar in their tanks.

 

Since performance injectors seem to sell for less
than GM replacement list, get the ones you've
been wanting (and back it up with the GM list
price off one of the web sites). Fuel pump? Ditto.

I'd go and get some paperwork off the 'station,
"just give me the bill" sounds nice but you're looking
for some kind of repair authorization form or anything
you can take to small claims court when they decide
to try and stiff you 3 months from now after stalling
for two. "Paper covers rock".

 

Will Lucas 42# injectors be overkill for my setup. I plan on increasing the shot to a 250 but it will still be a TNT wet kit. Any thoughts on that?

Thanks
Gilbert