Modifying a stock plastic gas tank
Modifying a stock plastic gas tank Has this been done by adding AN fittings for a complete new system??? Is there a way you can do this since the tank is plastic in the 99's? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
TECH Junkie
Joined: Nov 2001
Posts: 3,987
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From: Melbourne, FL
Re: Modifying a stock plastic gas tank I don't think you can do anything with the plastic tanks...
Your best bet would either be one of the ready to drop in aluminum tanks that Speed Inc. sells, or to get a steel '98 tank and add a sump to it.
I've been very happy with my homemade sump in my stock '98 tank.
Your best bet would either be one of the ready to drop in aluminum tanks that Speed Inc. sells, or to get a steel '98 tank and add a sump to it.
I've been very happy with my homemade sump in my stock '98 tank.
Re: Modifying a stock plastic gas tank Thanks as I ordered a tank from Tom but it seems that he cannot get in touch with his manufacturer and I turned in this order 2.5 weeks or so ago but Tom has been really good and has really tried to do all he can do so I will just hang in there as that tank is a nice one!!!!
Re: Modifying a stock plastic gas tank The tank appears to be polyethylene, to me.
You can heat-weld some poly (with the right
heat gun and filler). Solvent welding is
out of the question (duh). Using a 2-piece
compression bulkhead fitting with solvent-resistant rubber seal and enough mechanical
overlap to avoid compromising the limited
strength of the tank might be reliable.
Finding such a fitting is doubtful but to
make one out of stainless washers and SS
fitting hardware is simple if you have a
MIG, TIG or even OA brazing available. You
might check around for AN bulkhead fittings,
as these might have some application in
chemical tanks, etc. where plastic tank
meets stainless line. As for the seal, I
dunno.
If you're not hung up on having AN fittings,
might look for something in brass. Not like
the tank sees high pressure.
You can heat-weld some poly (with the right
heat gun and filler). Solvent welding is
out of the question (duh). Using a 2-piece
compression bulkhead fitting with solvent-resistant rubber seal and enough mechanical
overlap to avoid compromising the limited
strength of the tank might be reliable.
Finding such a fitting is doubtful but to
make one out of stainless washers and SS
fitting hardware is simple if you have a
MIG, TIG or even OA brazing available. You
might check around for AN bulkhead fittings,
as these might have some application in
chemical tanks, etc. where plastic tank
meets stainless line. As for the seal, I
dunno.
If you're not hung up on having AN fittings,
might look for something in brass. Not like
the tank sees high pressure.
Re: Modifying a stock plastic gas tank charlie@ls1turbo.com tried to use bulkhead fittings with his 99 tank and it would not seal, he became the prototype car for the Speed Inc. fuel tank instead. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
