Ima bring the S12 out for a sesion of devistation (on my part) I'll be in a modified class im positive just dont know what but i just want to do it for fun till I get the VG built for Comp. at VIR.....The KA24E Would be a great motor for Autocross its got lotsa torq.....And the S-Chassis is defiately proven solid......maybe even better to have an S13 than an S14......(Weight)