Fueling & Injection - Nasty Tank setup?'s

Hi guys,
I'm running the nasty tank in my car and I'm having a couple of problems with it. The custom sending unit is not reading correctly. When I'm on E and I go to fill up it only takes 6 gallons to top off. The second issue i'm having is venting the tank. I'm running a piece of -6 up to a vented filter in the fender above the filler neck. I had a one way rollover valve in line before the vented filter but with the valve it would take me days to fill up. Since I took the valve out I can fill up fine but when I take a sharp turn the gas sloshes out the breather. I'm thinking of finding a filler neck from another car that has a small line that comes up parallel to the main filler and ties into the filler neck so it will vent better and still be sealed up when I put the gas cap on and put the rollover valve back in line. I just want to get your ideas on how you did yours and how your sending units are reading.
Thanks again,
Adam

I went through the same thing going around turns.

I ended up putting a 1/4" ball valve on the end of the line and mounted it in front of the gas cap. I cut the handle down a little to make it fit.

When I fill I crack it open. After I'm done, I close it. Haven't had any issues with it this way. No excessive pressure or vacuum on the tank. Just takes a little longer to fill up.

It may not be the optimal set-up and I'm sure someone will have something to say about it. It works for me though.

Got it from Home depot. You know, the other autoparts store :jest: .

http://www.homedepot.com/cmc_upload/HDUS/EN_US/asset/images/eplus/045564606558_3.jpg

Can't help you on the sending unit. I have the old tank and use the stock sending unit. Mine reads fine.

Thanks Smokin,
I'm gonna have to give that a try. This raw gas smell is getting old :)
Thanks Adam

I have seen guys with fuel cells in the trunk put a loop in the vent line. Is there any room to try something like that? Not sure if that would allow venting and stop the sloshing out of the tube.

Would something like one of these items in the link work: http://www.atlltd.com/ventvalves.htm


They call them VentValves and it looks like there are a couple different styles. I'm gonna be doing my tank soon and would like to figure this out before I put the setup in the car.