Drag Racing Tech - How are you venting a sumped tank?
02-13-2012, 08:14 PM
Ive got a 95 ta with a turbo 5.3 4l80e combo. Now iv sumped the factory tank. But i have no idea how to vent this thing. This is a street/strip car. All i can find is run a 3/4in line out of the tank to the atmostphere. Any way to keep some fumes down? Im going to be running a 2.1gpm fuel pump. Thanks guys. Its great to have some experts on tap.
02-13-2012, 08:53 PM
the factory vent line should do it. What I run on my 500gph pump
02-14-2012, 06:17 PM
all that factory stuff is gone any suggestions?
02-14-2012, 08:47 PM
Being that its a steel tank weld a bung the size of the feed line to the filler neck. Run an AN hose off it. That will vent the tank.
02-15-2012, 06:24 PM
Would you just vent it to open air? should i run it into a check valve?
02-15-2012, 07:47 PM
I always run a rollover valve with a small breather on the top...think my chassis guy gets the setup from bickle or mcamis. Only around $20 in the parts. May be tough to get that under your floor, sticks up about 3 inches. Chuck
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