Don't knock chains until you try them "OK". Some of the most creative race car minds in the business at one time or another have used chain drive to their advantage. The "Indy 500" was once won by a chain drive car. Ralph Potter built a chain drive "VW" powered midget and modeled after one of his legendary Quarter midgets that was enough to make USAC come up with a rule to ban them from racing. Ron Ambrose had a chain drive "TQ" that dominated the UMRA to a point that they saw fit to ban them also.

Seems to me like you you might be experiencing a "sour grape attitude" towards chains because you have not been allowed to implement such a brilliant drive system in any of your race cars.

Honest Dad himself