toyo spec
 

Hi before I going to rebuilt my 3.2 engine, any body can tell me about Toyo spec, before I go to wrong direction Car 70% on local track event. Thanks
Steve

Hi Steve,

I'm the current drivers rep to the rules commitee of the Toyo spec. The rules are available online. Look at the PRC website (www.porscheracingclub.com). The rules are an appendix to the general club rules and are also available at www.911cup.com

The forum on the PRC website has the latest on rule changes as well. For your car with a 3.2 engine you don't have many mods available. (that's a good thing). The exhaust must use 1.5 inch OD primaries, the rest of the exhaust is free (must meet sound limits at the track). The rod bolts can be upgraded to ARP or equivalent. The valve springs are free. You may use any chip or aftermarket fuel injection computer but you must maintain the stock intake system between the ports and the air filter. The hot set-up should be a race muffler system with headers (1.5 inch) and a Steve Wong chip. We are considering a rule change to allow bigger headers for the 3.2 pending some dyno testing.

You can PM me with any other questions or contact other racers from the website.

-Andy

Thanks Andy:)

Cool, we need more 3.2's in the class. :)