Transmissions for 4-digit power are new to me. Feeling my way blindly through the maze of mega-bucks trannys for big boys, the answer I have come up with for 1200 crank HP is the Lenco ST1200. I talked to the tech guy named David at Lenco, and he recommended the 4-speed version with upgraded bearings, which would end up costing right at $5500. That's a real wad of cash to me, and I would appreciate some input from the guys who have been there and done that. The application is 1200 HP, 3600lb, seeing about 1000 miles of street use and 2 or 3 land speed events a year. I was first leaning toward RPM's T-56 Magnum, but the ST1200 is only a couple hundred bucks more, is cheaper and easier to service, and is many times cooler.
Thanks in advance!