Technical > Spud Miller's Cave

Tank vent size.

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BK:
 Checking for a friend. Wondering what size the tank vent should be for 1200HP.

dreracecar:
If the tank is finnished, remove tank and take it outside and cap all the inlets and outlets except for vent. Fill to the top with water and close fill cap. Remove main line cap and watch water flow, it should be a constant streem, if it surges (like an old man peeing) then the vent is too small.

 I ran a 5gal tank with a 7/8" dia feed tube to a 110 pump SBC blown in 7.0pro and used a 1/2" dia vent line front to back and a "T" in the middle and then forward, venting was never an issue

Rusty Kramer:
We are feeding a little more motor but 1-1/8" ID feed line.  3/4" ID vent.  Pee test like a young guy and works good on the car. same type vent as DREracecar has front and rear vent with a T in the center

masracingtd1167:

--- Quote from: dreracecar on April 05, 2016, 08:42:43 AM ---If the tank is finnished, remove tank and take it outside and cap all the inlets and outlets except for vent. Fill to the top with water and close fill cap. Remove main line cap and watch water flow, it should be a constant streem, if it surges (like an old man peeing) then the vent is too small.

 I ran a 5gal tank with a 7/8" dia feed tube to a 110 pump SBC blown in 7.0pro and used a 1/2" dia vent line front to back and a "T" in the middle and then forward, venting was never an issue

--- End quote ---
     Like an old man peeing ! Funny stuff ! Just remember after you turn 60 never pass a bathroom and never trust a fart !

hotrod316:
there is one more 8)

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