turbogrill Posted June 22, 2021 Report Share Posted June 22, 2021 (edited) Hi, We are currently using the stock fuel system, it works great but filling the last 1-2 gallons take a long time and usually ends up in spilling and some added stress to the pit stop. The OEM system has the vent going back into the filler tube. My plan is to remove the OEM vent and replace it with a hose and a discriminator valve. I plan on reusing the existing vent outlet from the tank. 1. Is the radium valves are only for intank usage? They look like this: http://www.radiumauto.com/Dynamic-Safety-Vent-DSV-Valves-P1508.aspx I assume I would need something like this: https://www.pegasusautoracing.com/productdetails.asp?RecID=7265 (Also why is it $200! 2. Can I terminate the vent hose inside the trunk as high as possible? 3. The rules only require a roll over valve, but I guess that wouldn't work well in my application since the filler tube and vent will be similar height? So during fill it's likely that it will dump gasoline out the vent. Maybe that works better if you can have the vent in the roof? (If you are racing a station wagon) Edited June 22, 2021 by turbogrill Quote Link to comment Share on other sites More sharing options...
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