im going to be building a vintage oval racer. heres the deal i want to run a disk brake right down on the drive shaft for less rotating inertia. problem is i cant get an extended drive shaft to allow me to run the disk outside the tunnel. so as of now the plan is the disk will be inside the tunnel on the drive shaft right next to one of the track drivers. my question is how much snow do you think will contact the brake disk. will it cause the disk to be wet all the time and provide poor breaking performance. this is an oval sled so i will need to use the breaks a lot should the heat from friction keep it dry?