Less is more at a drag strip. More close-ratio gears makes tree-huggers happy. The 392 has such a broad power curve, as do most all modern engines, I think even the mpg differences will be negligible when compared to the added weight.:indifferent:Being a mechanical dope...what is the advantage in terms of say going fast at a drag strip with an 8 speed automatic vs a 5 speed automatic?
The current 5-speed Merc transmission is a good quality product, but many would say that 2nd and 3rd gear are too too long. Imagine that same quality product with less spacing between 1st, 2nd, and 3rd gear? :thumbsup:The Damlier/ Mercedes WA580 five speed auto transmission in our cars is great and is used in some of their high performance AMG cars.I think this is a perfect auto trans. for the SRT 392/6.4 . The BMW 8-speed is just MPG overkill,I'd rather have the Mercedes WA580 that's been proven and tested for a number of years now.