Great for overall turbo power due to 9.5:1 compression ratio
Returnless fuel system (only one line to run)
Engine: 1.8 L (110 cu in) BP-Z3 143 hp/120 ft-lbs Weight: ~2350 lbs
Notes on 01-05:
Intake Variable Valve Timing (VVT), which can improve midrange torque substantially with tuning
VVT actuator on valve cover is tall and requires careful hood positioning
10:1 Compression ratio
Engine: 1.8 L (110 cu in) BP-4W Turbo 178 hp/166 ft-lbs Weight: ~2540 lbs
Notes on the Mazdaspeed:
Factory Mazda turbo option
Gear limited to 125mph – high revs at highway speeds
Due to higher cost, it may be more effective to add an aftermarket turbo to another NB donor
Your state’s specific requirements on emissions may make certain years more desirable to you.
Research your registration requirements with your state’s Department of Motor Vehicles or through the SEMA Action Network’s Tag & Title Toolbox which contains everything you need to register and title your hobby car in the US.