Kinda offbeat question here, probably pointless. My car is back-halved, so the trunk pan & structure in the rear clip is custom. Where previously the factory tank was strapped to the underside of the trunk pan, now there are (2) 1-in square tubes, longitudinally, under the new pan, and the tank straps to them. Further... I had to space down the tank to clear the fuel pick-up/fittings. I used (4) hard nylon discs, about 1.5-in in diameter, about 1/4-in thick; 2 on the rearward edge of the tank and 4 on the front. They're attached to the 1-in rails, so the tank (20-gal) will be contacting the body at these 4 points only on the top side (using the factory straps from below). Again - probably a stupid question, but is there any issue with not have MORE contact area on the top of the tank? I can't think of any, but I don't always think of everything. Thanks.
Usually when you back half a car,we usually qa custom gas tank in the trunk. Why are you using a 20 gallon gas thank? More weight is not good.Bruno.
^ It's not a full-blown race car- a number of compromises toward the street, including using the factory tank. Pics are the bumpers/spacers I used that the tank will rest against on the topside; 1 per side toward the rear, 2 per side at the front.
I have a custom 20-gallon from Rick’s Hot Rods,with an Aeromotive 1000 inside the tank with a pre-filter. I like to drive and I usually have about 15 gallons in it at the track.
Looking at the pics I think I would be more comfortable with more contact area. Especially if the spacers are made of hard nylon instead of soft rubber. Is there a way you can weld in more support between the two existing rails?
Why not just run two rubber strips along the entire length of each rail? Are you using straps similar to original to secure it?
Tank cannot touch the existing rails due to the fuel pickup coming out the top of the tank. Rubber would have to be like 1/2-in thick... but I'll look into that. Using the factory straps.