turbogrill Posted October 9, 2021 Report Share Posted October 9, 2021 Hi Can I plug the existing filler hole on my tank and add a new one in a different location? 2022 BCCR: 9.10.4.1.1. Stock fuel tank must not be altered in any way from OEM specifications. No cutting, hammering, ballooning, or other changes are allowed. 9.10.4.1.2. Stock fuel tank vent lines and fill necks may be altered and/or relocated. Does the fill neck refer to the actual neck on the tank or the filler neck at the body? (Sorry, not familiar with the terminology) Quote Link to comment Share on other sites More sharing options...
Team Infiniti Posted October 9, 2021 Report Share Posted October 9, 2021 3 minutes ago, turbogrill said: Does the fill neck refer to the actual neck on the tank or the filler neck at the body? I suppose it depends on how the thing was made, some cars have a large, short nipple with a hose & clamp to the filler neck, others have a integrated, welded assembly that makes the neck part of the tank, ours is bolted on. Quote Link to comment Share on other sites More sharing options...
enginerd Posted October 9, 2021 Report Share Posted October 9, 2021 (edited) No. What is meant by ‘relocated’ is the routing and the tube through which fuel flows from the cap area to the tank, not the port / attachment to the tank. Edited October 9, 2021 by enginerd Quote Link to comment Share on other sites More sharing options...
turbogrill Posted October 9, 2021 Author Report Share Posted October 9, 2021 1 hour ago, enginerd said: No. What is meant by ‘relocated’ is the routing and the tube through which fuel flows from the cap area to the tank, not the port / attachment to the tank. - Adding a new vent would be OK? I don't see the difference in the rule between relocating a vent and a filler hole. It says "vent lines" could be moved, you could argue that is the vent line from the tank but not where the vent attaches to the tank. - Same with adding a AN fitting instead of OEM fitting for fuel pump lines/hoses. I assume many teams fiddle with the fuel pump lid and replace the OEM fittings with some AN fittings. This would also be changing the tank. Just want to make sure I dont get screwed in tech. (New tech guy whatever) Quote Link to comment Share on other sites More sharing options...
enginerd Posted October 9, 2021 Report Share Posted October 9, 2021 (edited) 4 hours ago, turbogrill said: - Adding a new vent would be OK? I don't see the difference in the rule between relocating a vent and a filler hole. It says "vent lines" could be moved, you could argue that is the vent line from the tank but not where the vent attaches to the tank. - Same with adding a AN fitting instead of OEM fitting for fuel pump lines/hoses. I assume many teams fiddle with the fuel pump lid and replace the OEM fittings with some AN fittings. This would also be changing the tank. Just want to make sure I dont get screwed in tech. (New tech guy whatever) I wasn’t in the boardroom for the decisions, but as I understood them, the whole point of this rule addition was to prevent people from making changes to stock tanks which could compromise their structural integrity and / or change them out of their NHTSA approved configurations. If you cut a hole in the tank and weld on a new port, you have modified the tank and potentially reduced its strength. If you move the position of the vent lines and change them to a different material, but they still attach to the same port on the tank, you haven’t made any changes to the tank. Edited October 9, 2021 by enginerd 2 Quote Link to comment Share on other sites More sharing options...
turbogrill Posted October 9, 2021 Author Report Share Posted October 9, 2021 (edited) From tech: "You can not change the stock gas tank in Any way, "none" no moving, enlarging or adding anything. You can move or change fills and vents on the car but not the tank, that has to remain completely stock.. But I guess the fuel pump lid (the round plate) that has the connections can be modified. It's not part of the tank. Edited October 9, 2021 by turbogrill 2 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.