> jim wilson wrote:
     >
     > I am building an older Wheeler Express. I have rebuilt a
     number of
     > Mazda 12A's in the past, all of which are still running.
     I need 210
     > to 260 hp. Can a 13B be modified to do this and remain
     reliable?

     Absolutely. Piece of cake with a turbo. Non turbo you will
     need a 3
     rotor.
     If turbo 13B I would assemble the engine with two piece  3
     mm apex
     seals to guard against detonation that can fracture the
     stock 3 piece
     seals.

     Paul Lamar

     Also easy enough to get 215 to 235 with a NA peripheral
     port 13b when turned
     up to about 7400 RPM and using Tracy's 2.85 redrive.

     Ken Powell

 
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