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LTX and LSXPutting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.
Has anyone tried these yet? I wonder if they are using the same bad replacement gas tanks that are out there. I hope not. There are two options, a 200LPH and a 340LPH. This may finally be a drop in gas tank and pump combo for our cars. No reviews yet so I guess it just came out.
I have one in my GTA, the tank shell is the same one that 1Aauto.com sells, the sending unit is proprietary to Aeromotive.
Was the fit ok? Was the fill tube in the correct place and angle? How about the pump, which one did you go with? How did the level sender work? Please elaborate on your installation. Many people on this site are concerned about the lack of good fitting replacement tanks to use.
Tank fits fine and is just as much as a PITA as any other tank. They have a wiring kit thats make its simple or you can run your new wires to the relay. Stock wiring wont work as its too thin and wont carry the amps the pump needs. Most folks go with the 340 unit to have the extra capacity. You can reuse the stock harness connector to issolate the purple sending unit wire. It will allow your stock 3rd gen gage to work.
I had used the Aeromotive 340 fuel pump added to the stock fuel pump assembly. It would have been better to have a fuel pump where I could plumb up AN and electrical lines directly. At least a vendor now has a drop in solution for LS and LT swaps. With all the threads that I have read about fuel tank horrors, I would have thought there would me more comments about this. Its not everyday where a vendor steps up and provides a key parts upgrade for our cars.
hopefully they aren't using the exact shells that you generally get from dorman, spectra, etc
for some reason the neck fill is usually not quite right and on a couple i have installed the fuel fill venting doesn't work correctly so the fuel burps out if you are not careful.
i haven't tried one of these aeromotive tanks as i have had these worries i have experienced with the other stock replacement styles. hopefully this has been addressed in the tanks they are using
hopefully they aren't using the exact shells that you generally get from dorman, spectra, etc
for some reason the neck fill is usually not quite right and on a couple i have installed the fuel fill venting doesn't work correctly so the fuel burps out if you are not careful.
i haven't tried one of these aeromotive tanks as i have had these worries i have experienced with the other stock replacement styles. hopefully this has been addressed in the tanks they are using
This is why I questioned how they fit. I have read many horror stories just like what you wrote. So far, it seems two people have put this tank in without issues. This would solve so many problems from a good pump to the level indicator. Not having to do all the modifications is one less thing to worry about. Plus the cost doesn't seem to far out of line. I may look into this even though I am running a Aeromotive 340 pump the tank seems to be hard to fill, burping out like you said.
I’m in process of also looking purchasing this same unit.
The Aeromotive site has a install document (attached) says must changeout to their standalone high flow regulator. Has anyone done this on the stock TPI using there flow regulator and bypassing the one on rail or is it really needed if using a adjustable on the rail?
I’ve seen a few threads on boring out and modifying rails for firewall mounted regulator. Just not wanting to get into all that extra work besides, running new wires and lines just not wanting to tear TPI off.
I currently have a Jet adjustable installed and hoping this would work, as when I spoke to the tech department they didn’t sound confident when I asked about using the rail mount adjustable reg, even though they said it may work bit was sure. I’m only needing the new tank, pump, and sending unit.
I want to go with full Aeromotive assembled unit as with freight to Canada it’s cheaper then purchasing a assemble stock unit.
Current engine is bored 30over modified 4bolt -350 stock TPI with Custom eprom using Tunerpro.
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Last edited by iroc-z383; 11-10-2020 at 01:27 PM.
Reason: Add note that engine is not LS1 or swap.
hopefully they aren't using the exact shells that you generally get from dorman, spectra, etc
for some reason the neck fill is usually not quite right and on a couple i have installed the fuel fill venting doesn't work correctly so the fuel burps out if you are not careful.
i haven't tried one of these aeromotive tanks as i have had these worries i have experienced with the other stock replacement styles. hopefully this has been addressed in the tanks they are using
Exactly. The fuel neck was still an issue. It was about a half inch off from sliding right in. I ended up cutting a little of the metal inside the fuel door pocket and that was the trick. I cut two small vertical lines and used vice grips to bend the section down slightly. Won't be seen and there is clearance around the tube. I chalk it up to normal aftermarket fitment.
I know this is an older post but I figure ill give it a try here first. Is the harness upgrade something aeromotive has a part number for thats more suitable for a 3rd gen? I see one from racetronics but not without a pump that I wouldn't be using. I'd really prefer to just upgrade the tank sending unit and everything and be done with it all.
Thanks in advance.
Originally Posted by ShiftyCapone
Tank fits fine and is just as much as a PITA as any other tank. They have a wiring kit thats make its simple or you can run your new wires to the relay. Stock wiring wont work as its too thin and wont carry the amps the pump needs. Most folks go with the 340 unit to have the extra capacity. You can reuse the stock harness connector to issolate the purple sending unit wire. It will allow your stock 3rd gen gage to work.
Not 100% sure what you're asking. I've used the Racetronix hotwire kit twice now and it's everything you'd want. Is the Aeromotive hotwire kit better? Maybe...never used it. I just recently installed this Aeromotive stealth tank and sender, and I used the Racetronix kit.
I know I'm not supposed to use sealant. Saw they had it on the AN adapters, so figured I should. Learned that those are pipe threads going into the sender/bulkhead . Obviously the AN side is....well.....AN. Sealant cleaned out......works great, no leaks.
You could always just wire it up yourself. Could be cheaper. Thats what I did. Ran 10g wire from pump to battery and from pump to relay. Relay fed off major battery main.
I was wondering if the vent line is ok to split between the line that goes to the axle and the line that goes to the front of the car to what I guess is the charcoal/ vapor cannister? Since there is no 4th line out of the top hat.
I asked Aeromotive. They said to make sure the vent is always vented to atmosphere, and under no pressure. I specifically asked about the charcoal canister AND the UFO lookin' vent valve. They said leave it open to the atmo! ....that being said, I read on the Factory Five forums that a lot of guys will make homemade charcoal filters. A trip to the hardware store for some hose, fittings, and some pvc and some fish tank charcoal and you're good to go. I built a pipe-bomb lookin' filter for the 383/Holley EFI on my red 89 and it worked great.
Most charcoal canisters at this point are pretty much open to the atmosphere by time and wear. This guy rebuilt his factory charcoal cannister, link below.
Not mission critical here...
But I would prefer the EVAP system's Reactants (Vapors, Fluids, Etc) remain separate from the Vent-Lines of Healthy Gear Oil, ATF, or other...
Just trying to keep everything healthy.
08-12-2020, 12:43 PM
