I’d like to open a discussion on fuel cells, gas tanks, fittings, and anything else related to fuel systems. So…here goes:

I had a cautionary e-mail yesterday regarding the use of E-15 fuel. This is used explicitly for “flex fuel” vehicles and is not for use in other types of fuel systems. This got me thinking that it was time to remind ourselves that all our racecars should be checked.
Anyone who has a fuel cell in their racing car should check over the winter that the cell doesn’t leak, has no creases in the liner, and that the foam is not starting to break down. The last is the one that catches most folks out. Long term immersion in highly toxic fuels will eventually cause the foam to start to disintegrate. This, of course, causes blocked fuel outlets or lines and is a complete pain in the nether regions.

Our classes which run “pump gas” should also have their fuel systems thoroughly check to insure that all seals and connections are intact and doing their job.

I’ve started this with the idea that those with experience and greater knowledge can (and hopefully will) add their comments.

Happy New Year.

I'll echo what Mike said. Fia certified fuel cells have a five year lifespan. Check yours.
Also remember that the FIA seats which are 8855-1999 certified have a five year lifespan as indicated by the label on them which gives the date of manufacture.
8862-2009 certified seats have "Not Valid After" date stickers on them.
Check the FIA website for details on the above standards.

We (CACC &/or SCCA) do not have a five year rule for seats. The FIA only certifies the 8855-1999 seats for five years. These and the 8662-2009 seats need only be mounted in the car according to the FIA and manufacturers requirements See the FIA rules for clarification.

All other seats that do not meet the FIA requirements must have the seat back attached to the roll cage.

If you have a FIA seat that is past its expiry date,then it does not meet the requirements. My take on the way that the CACC and SCCA seat rules are written is that you need only attach the seat back of the expired seat to the roll cage and carry on racing.

On another note I see that there is still a number of people entering the sport, despite the requirements for modern helmets an FHRD and a restraint harness that meets the rules. I fail to see how anybody would base there entry into the sport based on a situation five years down the road.