For one project I bought a boostlogic A/T, this 4 speed supra / aristo transmission (A340 series) bolts to the V8 with a different bellhouse and torque converter. I heard good stories about the built boost logic transmission but I don't have these first hand. My first boost logic transmission was dead within 3000 miles. Replacement took very long and is finally arranged after 4 months! Now lets see how long this replacement will hold 
For another car I am thinking of using the 5 speed automatic. This A650 series I cannot find ready made upgrades for. So we have to build it ourselves. Does anyone know what is required to upgrade on these transmissions? Like more clutchplates, rebuilding valve body or something?
For another car I am thinking of using the 5 speed automatic. This A650 series I cannot find ready made upgrades for. So we have to build it ourselves. Does anyone know what is required to upgrade on these transmissions? Like more clutchplates, rebuilding valve body or something?
