FB was the brain child of an FC driver who wanted to go faster for less money. So he took a Van Diemen FC and sold off the rear end FC parts then built a new sub frame to hold a Suzuki GSZR1000 engine and wider tires all around. Car turned out to be
amazingly fast running at the pointy end of the FA lap times with $16,000 LOWER engine cost!! (James Blackwell has a TOUGH time chasing them down at Pacific Raceways in his FA). They as in the doers thought they had a low cost speedster. Buy a used FC for around $18 to $20K. Sell off the rear for maybe $8,000 to $10,000 and use the money to convert to MC power (engines are around $2,500 to $3,500). Could almost do the conversion free!
One of the early pioneers was/is Glenn Cooper (aka: Giancarlo De Coopola) who races in the southeast out of Atlanta. He 'ate' everybody for lunch in the major races at Road America, Road Atlanta, and places in between for the last couple of years with a "Novak" built conversion "kit" on a VD chassis. One fast guy. He was out here in Seattle for the Double National. He didn't do well in FB (only had a rental Firman for Monday) and spun on the second lap at T-2. But he drove Dave Bennett's DSR Sat/Sun and learned the track very fast. He had serious chance to be a contender.
Any way yes, cheep go fast concept. THEN, Stohr decided to get in the game and begain building $60,000 'factory' FB's. Then, Phoenix got in the game with a $50,000 FB, Then, Firman in England got in the game.... then.. then.. now it's a pretty expensive (if you go factory) way to go REALLY fast on the race track!
But OHhhhh, man! 13,000 RPM, no lift flat to the floor paddle shifters, 148 MPH terminal velocity at Pacific. They are soooo much fun to watch and hear. All with a 1000 cc engine!
There are several semi Pro series FB's are running in and in 2012 there will be an 'official' FB pro series. No telling how long it will last though. Cause I ASSURE you they will probably put on a better, more exciting show then the featured Pro race of the weekend where ever they go