Hey guys just curious if anyone with high-horsepower comets/mavs needed to put a sump system on their tank (or replace it)? Just asking cause I have a 71 nova that I needed to do it to because when I hit the throttle it would be pumping air cause of the outlet being on the top front of the tank.
the outlet may be on the top of the tank but the gas is picked up from the botom of the tank. if you are in fact picking up air then the pick up tube has a problem. it could be rusted away, the filter sock that may be on the end could be pluged up or falling apart. now this is a maverick/comet forum. there is a section on the botom for other cars help. thats were this question about your nova probly belongs.
just something I was worried about and was curious if this was a problem in comets with enough hp/torque to get up and go (I plan on having a healthy 400+ hp). I am a bit lacking on cash so I was hoping to get away with the original tank and just upgrading the fuel pump. Tank and lines are in excellent condition so I would like to use them if possible
If you are gonna have 400 plus horses...Put bigger fuel lines on it...The stock 5/16ths line is barely adequate to feed a 400 Horse engine.If its gonna hook hard and lift the front hoops...Sump the tank or go to a fuel cell.
I sumped my tank. It wasn't all that hard, and I'm happy with the results so far. Now if I could just get it running!
There wasn't much to it actually. I installed a Mustang tank like the writeup you see in the tech area...see post #21, that is mine... http://mmb.maverick.to/showthread.php?t=35490&page=3 I bought the sump from e-bay, just a generic thing. I bent and trimmed it to fit the Mustang tank and I mig welded it (since it was a new tank I had no explosion worries) a stitch at a time working across from each previous weld. In the end we pressurized the tank and sprayed it with a soap solution to look for leaks. You could also submerge it in a big tank of water (or your swimming pool) to look for bubbles. Hmm...I wonder what it would take to hold it under water??? Maybe you would just have to check the bottom that way. Anyhow, afterwards I put a layer of epoxy over the whole welded area to assure that it was sealed completely. Finally I put a coat of flat black paint after priming it, over the whole thing to try and hide the sump. You can see a picture of it here... http://mmb.maverick.to/showthread.php?p=366395#post366395
