I've searched the forums here for information regarding effective engine speed limits for a street based 250. Most recommendations revolve around accepting the typical 5000-5500 rpm limit, and maximizing low end power. While I understand this approach, I'm after a little something different, as my project will see considerable street time, but will also see limited track duty at out local dragstrip, as well as autocross/parking lot racing type events. A bit of extra engine speed helps in these arenas; I'd like to be able to go to 6000 or maybe 6200 if possible. I'm already planning on an ATI harmonic damper, as well as lighter pistons and 6" rods. What else, in terms of the bottom end, is typically done to make these engines more robust at 6K? Crank counterweight modifications? Is there any new flywheel technology out there (the car is going to be a stick)? Any and all advice is welcome.
TQ
