MONGO510 Posted December 9, 2010 Share Posted December 9, 2010 I have I have done a pretty thorough search of our site, and also studied the SCCA GCR, and I am still not clear as to what is allowed as a cover plate for my cell. I know that it has to be enclosed in a 20Ga. steel can. The question I have is; Is it allowable to have the fuel cell " access/cover plate " flush mounted on the rear compartment floor? (gas cap and fittings exposed). Or does the entire assembly have to be behind, or under, a steel fire wall or cover? Thanks, Mongo Quote Link to comment Share on other sites More sharing options...
johnc Posted December 9, 2010 Share Posted December 9, 2010 I have I have done a pretty thorough search of our site, and also studied the SCCA GCR, and I am still not clear as to what is allowed as a cover plate for my cell. I know that it has to be enclosed in a 20Ga. steel can. The question I have is; Is it allowable to have the fuel cell " access/cover plate " flush mounted on the rear compartment floor? (gas cap and fittings exposed). Or does the entire assembly have to be behind, or under, a steel fire wall or cover? Thanks, Mongo The entire fuel cell (including the center fill plate) needs to be separated from the passenger compartment by a metal cover. Quote Link to comment Share on other sites More sharing options...
MONGO510 Posted December 9, 2010 Author Share Posted December 9, 2010 (edited) Thanks John! Is a hinged door allowable for access to the fuel filler cap? Similar to this? Mongo Edited December 9, 2010 by MONGO510 Quote Link to comment Share on other sites More sharing options...
johnc Posted December 9, 2010 Share Posted December 9, 2010 Thanks John! Is a hinged door allowable for access to the fuel filler cap? Similar to this? Mongo Yes. The whole cover can be hinged if you want. Quote Link to comment Share on other sites More sharing options...
ModernS30 Posted December 10, 2010 Share Posted December 10, 2010 it has to be enclosed in a 20Ga. steel can. ouch... I got some work to do before I can go to auto-x.... Is this all of the classes? I only have 2 under bars. I guess I am going to have to buy some more 1x1 and make my cage larger as well. Quote Link to comment Share on other sites More sharing options...
hoov100 Posted December 10, 2010 Share Posted December 10, 2010 ouch... I got some work to do before I can go to auto-x.... Is this all of the classes? I only have 2 under bars. I guess I am going to have to buy some more 1x1 and make my cage larger as well. Most of the time you can buy the can ready to go from a fuel cell manufacturer. As for the cage, I would do two more bars on the sides and connect them to a "halo" at the top where you can through bolt the metal box. Quote Link to comment Share on other sites More sharing options...
evildky Posted December 16, 2010 Share Posted December 16, 2010 ouch... I got some work to do before I can go to auto-x.... Is this all of the classes? I only have 2 under bars. I guess I am going to have to buy some more 1x1 and make my cage larger as well. you don't need it to be sealed off for autocross Quote Link to comment Share on other sites More sharing options...
johnc Posted December 16, 2010 Share Posted December 16, 2010 you don't need it to be sealed off for autocross Yes you do. Per the 2010 SCCA SOlo2 rule book: You are not allowed a non-OEM fuel cell in Stock or ST. SM, Prep, and Mod specifically require that a non-stock tank be sealed off by a separate bulkhead. In SP your fuel cell install must meet the requirements of the GCR. Quote Link to comment Share on other sites More sharing options...
mxgsfmdpx Posted December 16, 2010 Share Posted December 16, 2010 you don't need it to be sealed off for autocross Incorrect. Quote Link to comment Share on other sites More sharing options...
sq_creations Posted December 16, 2010 Share Posted December 16, 2010 This is what I built for nhra. It passed the tech inspection. Quote Link to comment Share on other sites More sharing options...
tjandriesen Posted December 26, 2010 Share Posted December 26, 2010 If you are fabbing a cover for the cell and wants an access door this might help. http://www.swracecars.com/store/Fuel-Door-Kit-OSCARItem_165=05-010.aspx Quote Link to comment Share on other sites More sharing options...
DrSideways Posted December 27, 2010 Share Posted December 27, 2010 This is one of those tasks that too often get out of control. The cell needs a cover. No problem. You need a way to get to the filler. I made a 4.5" tall riser out of the same aluminum I used for the cover. The riser is shaped like the oval found on top of the cell. I cut the oval out of the flat cover that goes from side to side from the strut towers back. I left two tabs to attach the riser. On top of the riser I put a lid with one simple hinge and a wing nut Dzus fastener to keep it closed. I have seen what looked like enough metal to build the side a of a Greyhound bus covering fuel cells. Just seems to be adding weight for zero gain. If needed I can snap a photo later. Alan Quote Link to comment Share on other sites More sharing options...
JMortensen Posted December 28, 2010 Share Posted December 28, 2010 How are you guys sealing the cover to the floor in the rear? I was thinking of getting some of that VW fender weatherstrip, or some thin foam weatherstrip and putting it around the edge of the hole so that the cover seals up. Looking to minimize exhaust fumes as much as prevent the gas from getting in around a leaky cover. Quote Link to comment Share on other sites More sharing options...
z-ya Posted December 28, 2010 Share Posted December 28, 2010 How are you guys sealing the cover to the floor in the rear? I was thinking of getting some of that VW fender weatherstrip, or some thin foam weatherstrip and putting it around the edge of the hole so that the cover seals up. Looking to minimize exhaust fumes as much as prevent the gas from getting in around a leaky cover. In my case the cell has a lip that attaches to the 1x1 frame. The rear deck is sandwiched between the cell lip and the 1x1 steel frame. So the lip is sealed to the deck with some thin stick on foam. The cover that isolates the cell from the passenger compartment is not sealed. It just mates flush on top of the cell lip. Pete Quote Link to comment Share on other sites More sharing options...
DrSideways Posted December 29, 2010 Share Posted December 29, 2010 How are you guys sealing the cover to the floor in the rear? I was thinking of getting some of that VW fender weatherstrip, or some thin foam weatherstrip and putting it around the edge of the hole so that the cover seals up. Looking to minimize exhaust fumes as much as prevent the gas from getting in around a leaky cover. Totally sealing is a tough deal. I used some white aluminum to replaced the whole rear deck. It bolts to the cell frame using all of those 1/4" bolts. Along the edges I used Dzus fasteners..... not too many though. On the edge of the aluminum I used the push on channel molding like used to be used on door jamb frames. Having the exhaust exit past the back of the car a bit seems to help on the CO problem. I've been gassed in Z Cars twice pretty badly. Never had a problem with mine:) Alan Quote Link to comment Share on other sites More sharing options...
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