Anyone have the engine specs for the Mazda 3 engines? Both the 2.0 and the 2.3L. I'm curious to know things such as the bore size, stroke, compression ratio, etc..

k heres the stats that you want

2.0L Type-LFD
HP: 148hp @ 6500RPM
Torque: 135lbs/ft @ 4500RPM
Redline: 6500RPM
Displacement: 122.0 cubic inches/1999cc
Bore x Stroke: 87.5mm x 83.1mm
Compression Ratio: 10.0:1
Emission Control (FED): Tier 2 Bin 5
Emission Control (CAL): LEV-II SULEV (PZEV)
Valvetrain: 4 Valves per Cylinder, Mechanical Lifters, Camshaft Chain
Starter: 12V: 1.0kw

2.3L Type-L3V
HP: 160hp @ 6500RPM
Torque: 150lbs/ft @ 4500RPM
Redline: 6500RPM
Displacement: 137.9 cubic inches/2260cc
Bore x Stroke: 87.5mm x 94.0mm
Compression Ratio: 9.7:1
Emission Control (FED): Tier 2 Bin 5
Emission Control (CAL): LEV-II LEV
Valvetrain: 4 Valves per Cylinder, Mechanical Lifters, Camshaft Chain; Variable-Valve Timing
Starter: 12V: 1.4kw


Shared Components
Fuel System: Multi-port Electronic Fuel injection
Ignition System: Breakerless Electronic
Alternator: 12V-90amp
Battery: 50D 20L


well i put in as much info as i know, and hopefully it will help some.... i even went further than u requested just incase u needed to knwo :p , or for someone else to know

Thanks..

What about for Mazda speed Protege. The turbo one?

The Mazdaspeed has the same stats as any other 2.0L 3rd gen Protege. the turbo was basically an add-on...compression,bore,stroke was unchanged..fuel maps were different

What about the internals? pistons and rods? Are they the same or forged?

not to steal your post but i cant find complete specs on teh gtx i want to find out true stock tourqe specs

internals on the mazdaspeed are unchanged

unchanged?

Very interesting. Does anyone have any experience with turbo and fuel management for these cars? I'm thinking of building a turbo kit for my buddy's car. Any help would be greatly appreciated.

it would be less painful to just buy one....i recommend Wagner Motorsports.