i find this really funny. finding out that all these mach z's r blowin up, or losin the cranks. i guess an sdi 1000 isnt gonna work too good...did they have these problems with the 600's? i have a lot of doo drivers at my school sayin how mach z's r the fastest sled, but if they cant keep there engines past 500miles then that might be a problem!!...guys up in houghton, how those turbos workin on the trails??...i heard that lag isnt a problem, but since i dont have a turbo, i woudlnt know. i would like to see a vector jump into a wsa class and see what happens