I'm building a air cooled vw powered lakester. It is turbocharged, and due to all the plumbing, you can't run the stock fan & shroud. Can I put in air scoops that just go into the cylinders and back out (don't have anything to do with the rest of the body) and still be legal?
Air scoops would be considered bodywork since it directs air... Lets see: 4.W Open Wheel "no portion of the bodywork intrudes upon the inside plane of the tire." Since you'll be in there, there is already some width to the vehicle, NACA style ducts on each side can pull in enough air. As far as directing the air have a look under the hood of a Cessna 120 (or similar) flat-4 powered airplane and/or a few Formula V cars, just you'll want the air to go under and up through all the cylinder fins then back. Those two little tin bits between the cylinders are there for a purpose (air has to go through the fins not just through the gap). If all the air goes common then out the back you can hang a fan back there during tuning, a dyno run, and after a run to keep things cooling without forward motion.
