the original engine was going to be a 450 + hp Subaru STi with a 930 transmission with the car built for a Pikes Peak run. After being put into the unlimited class, I decided to use the engine transmission in a better chassis if I am going to run Pikes. So I am putting a 2.3L T4 that I already had into it. Notice the chassis and torsion tube were cut to accept the 930. The Suby engine design was patterned by the 1973 RSR Turbo shown here...