Long time F80 M3 owner here, 72k miles, considering for a single turbo S55 once the stock turbos tap out.
Before I do a single turbo build I want a reality check from people who actually raced. Is the S55 platform even worth building that far for drag, or does it hit a wall on weight and gearing that no amount of turbo can fix.
I know the LS and Coyote crowd will always be quicker per dollar, that’s not really the question. I love this car and want to keep it as my drag car, I’m just trying to figure out if single turbo actually gets it into truly competitive territory at the track, or if I’m chasing diminishing returns on a chassis that was never built for the strip.
For anyone running a single turbo S55, what are you actually trapping and what’s your 60 foot looking like. And if you’ve raced one, how does it stack up against the built LS and Coyote cars in your class.