possible to detune motor for street use?
so after months of search im finally in the process of purchasing a swift 08 with a toyota 4AGE and it got me thinking, is it possible to detune a motor for street use, im trying to build an engine that complies to the JTC-N2 regulations or at least something similar, and i started thinking, could i make my engine similar to the TODA racing ST3 crate engines? my first thought was to lower the compression and reduce the rev limit from 12k to 9 or 10k, and running E85 instead of conventional fuel, and adjusting the valve timing to be a bit less aggressive. if anyone has any tips please feel free to respond