I'm looking for a plastic gas tank to swap into my '92. From what I understand these were in 99-02 Camaros/Firebirds. I think my tank is rusting pretty bad because I've had to replace my fuel filter twice in the last two years, so I'm looking to do this ASAP. Let me know what you have and how much you'd want for it. Thanks!

 

I have one, $100 + shipping, yes its complete.

 

FYI.....

Pretty sure only the 98+F-bodies came with plastic tanks & if so....Your going to hafta to replumb it since the fuel lines are completely different as well as the fuel pressure being different from your TBI which means the pump is not correct. Plus rewiring to get the fuel level sending unit to talk to your gas gauge.

 

Sorry somehow I never got the email notification of your response. I bought one from a guy on LS1Tech but if that falls through I'll let you know, Thank you.

I know I need to adapt the metal fuel lines to hook up to the plastic ones, and I read up on how to adapt the level sensor. The only thing I'm not completely sure about is addressing the difference in fuel pressure. I thought I read something that said it doesn't matter as long as I use my stock regulator...I was going to do a bit more searching and reading before asking questions but if you have an answer for that I would be very grateful.

 

i adapted the pump mount on my old tank to my new one and used my old pump/lines. pressure tested good didnt leak either

 

Is that part of the top of the old tank, cut out & bolted to the top of the LS tank?

 

I would rather use the new fuel pump if possible because I think it would be more reliable, and I am EVENTUALLY planning on dropping in an LS. Anyone have any info on adapting it to work with the 305 TBI? I just got my tank today so I'm going to test the pump and everything.

 

Hey JamMasterClay how are you doing your fuel sender? The reason I asked is I'm doing that mod but found from another post somewhere how to do it better without messing with the tank. Doing it with resistors from the gauge itself

 

isn't the 4th gen tank about a gallon bigger too ????
does it have the swinging pickup ? like 1LE ?
is the fuel pressure an issue on TPI car ???

 

I got my tank yesterday and upon looking inside I was dissapointed to see it was completely empty...I thought it was supposed to be baffled - I was hoping that would decrease the fuel gauge jumpping. Can someone comment on this?

I'm not sure yet, I'm pretty good with elelectrical stuff, so I'll probably figure out my own mod and post it.

 

I've never looked inside a 4th gen tank but If I'm not mistaken the fuel pump bucket is what keeps the engine from fuel starvation and keeps the fuel from sloshing

 

Hey check this out on the fuel gauge mod...
https://www.thirdgen.org/forums/ltx-...auge-40-a.html

 

I spent 3 hours last night calculating and contemplating a solution to the gauge issue. I came up with basically 3 different methods of modifying things. In the post about modifying the sender, from what I could tell they never got the thing just right. I looked to modify it differently. There is basically a 40Ohm resister followed in series by a 0-210Ohm resister. By shorting out the 40Ohm resister and adding a 157.5 Ohm resister in parallel The sender would read 0-90, however it wouldn't be linear. At 50% tank it would read 70% and at 10% it would read 20%. Much closer, but not acceptable IMO. I then looked into modifying the gauge itself. I have a '92 Camaro so it has the newer instrument panel, plus the guy in that post did the mod to a Firebird. His reading were different than mine, so I was basically starting from scratch. I don't remember exactly what values I came up with but it was a resister in parallel between the power and signal wire, and a wire in parallel between the signal and ground. Again, I was able to get it to go from 0-90, but in between was even less accurate. The 3rd idea was to modify the arm of the float, so that when it was at the full level the thing would be at the 90 Ohm spot of the 0-210 resister (the 40 Ohm resister would still have to be shorted out so it goes to 0 at empty). I think this would be cheapest - you could use a coat hanger as a new arm, and it should read properly for the whole gauge. In the end however, I decided not to do that either. One of the reasons for me getting the LS1 tank is in hopes the gauge would be more accurate, and less prone to sloshing. Because the sender would only be moving along half of the resister, just slight sloshing would move it a greater about on the needle. So at rest it should read perfectly but while driving it might move around a lot. I would definitely recommend this method for anyone on a strict budget though.

In the end I decided I would either have to get the sender from another car as others have posted about, or I could get a new gauge. Replacing my instrument panel with aftermarket gauges is on my list of things to do anyways, so I decided to start that project a little bit early and I bought an Auto Meter Nexus fuel gauge which is programmable for any Ohm range to stick in the A-pillar for now.

 

yep. i made a flange that went inside of the tank and tapped it for the allen heads that went thru. i also used the 4th gen o ring gasket and put rtv all over the back of the old tank part for good insurance. definitely a quick fix but no gas leaks or smell yet

 

On Friday, November 23, 2012. I completed my 4th gen gas tank swap.

Parts Used:
1) 1999 V6 Camaro Plastic Tanks (I pulled it myself so I had all the plastic lines connected to the sending unit)
2) 1992 305 TBI Engine

I did not worry about the gas gauge because it did not work before I made the swap. (I always travel with a 5 gal tank of gas filled. Plus when you drive your car to the point were it runs out of gas, you have a feel to when your car is about to run out) Sure enough my old tank was cracked around the solder, fuel neck and tank. (GM claimed there was no leak).

The car ran fine, used the 1999 camaro fuel filter. I connected the metal lines from the plastic tank to the metal lines of the car with a rubber hose. (This is what was on the car when I removed the old tank so I just used it to make my job easier. I was going to flare the lines using a double end flaring tool but I changed my mind.)

I must say I am satisfied with the results. I filled the tank up to the neck, and drove from Lakeland/Brandon/Tampa/ FL to Tallahassee FL on one tank of gas. (It use to take me two to three tanks with the old tank.)

Sorry I did not take pics of my process, however I am more than will to lead you through the steps to get the job done.

Thanks to everyone on this site who helped me in any way with performing this task.