360/430 obsolete challenge cars?

Challenge Club Racing (CCR), is the 355-430 Ferrari Challenge Series you are asking about. There are currently over 70 Ferrari challenge owners in the series. Grids are often 25 plus ferrari challenge cars (as high as 42) You are correct that it runs mostly on the east coast. However, we have plans to expand to the west coast first with exibition races (possibly in 2014) and then a full region series on the East and West Coast (likely 2015). The vision is that there will be an east and west cost region championships that will be decided in a national race. The organization began with exhibition races in 2009-2010, with its first championship in 2011 and each year since.

To answer your question, the rules are posted on Challenge Club Racing. The modifications are very limited from stock. No internal engine modes at all or any other modifications from the factory challenge spec, with few exceptions that are mostly geared to making the cars safer or more cost efficient to run. ECU or header/ exhaust are allowed but carry weight penalty. Wing and splitter is allowed. The rules are designed to favor stock challenge cars in an effort to preserve them and keep the cars even (the idea is that the full performance of a stock Ferrari challenge car is out of the realm of 99.5% of experienced non-professionals.)

HSR is the sanctioning body that polices the rules and cars are weighed. The series strikes a pretty good balance of enforcing regulations and keeping the series run at a reasonable budget. Cars are not being broken down for inspections each race, but in the off season and at odd times we have had engine inspection reports on top drivers, teams and drivers must certify and disclose any modifications, and anyone is open to protest. It is an arrive and drive series with teams fielding multiple cars so the cars and drivers are well know to each other and the teams, and they are very close. It's run as a vintage racing league. It's not as competitive as the factory Ferrari challenge. The guys are the top are very fast but there is a strict no touching rule so the racing is very clean. It's not unusual to go 4 or 5 races with grids of 30 cars without a single touch.

The series is open only to challenge cars. We have an "exhibition class" for modified challenge cars but it is limited in that it is open only on a case by case basis to accommodate challenge car owners that were modified by previous owners. And the exhibition class cars do not run for points. There has been no interest in an anything goes modified class.

The website has a ton of info.