I just finished talking to a guy about a possible engine swap for us naturally aspirated 626/MX6s. What you would have to do is import a FE3 engine from either Japan, Europe, or Australia. These engines are the 2.0L DOHC 16v found in the 626/MX6s in the mentioned areas. The guy seemed very knowledgable about the Mazda engines as he has a engine swapability list and runs a Miata website. Well maybe that's not enough proof but you can see for your self at http://members.aol.com/solomiata/
Anyway, the engine blocks are nearly identicle. The only difference from what I understand is that the FE3 block is shorter. Otherwise the two engine blocks are the same.
The engine's redline is 7000RPM, a full 1000RPMs higher than the 2.2L thanks to the shorter stroke. The engine also has better high end HP because of the DOHC head. The engine also has forged pistons and crankshaft. The engine is rated at 140HP and 170Hp without catalytic converter
. Dunno about torque. Don't hold me accountable to the HP figures because he said maybe, I'm currently getting inquires from the Holland MX6 club on what the HP ratings are.
The 2.2L transaxles do mount on the FE3 engine as well. The FE3 is VERY similar to the 97+ Kia Sportage engine, however the camshafts have different profiling for torque and the crank and pistons are cast. The blocks are also somewhat different (It's a Mazda engine though!). This engine is only for the non-turbo cars for one reason and one reason only, the 2.2L manifolds do not match up. You would have to sculpt your own manifold for the turbo to work.
Only one questioned is currently unanswered and it is about the ECUs I don't know whether or not the 2.2L ECU will work on the FE3. But I'll soon find out.
Anyway, the engine blocks are nearly identicle. The only difference from what I understand is that the FE3 block is shorter. Otherwise the two engine blocks are the same.
The engine's redline is 7000RPM, a full 1000RPMs higher than the 2.2L thanks to the shorter stroke. The engine also has better high end HP because of the DOHC head. The engine also has forged pistons and crankshaft. The engine is rated at 140HP and 170Hp without catalytic converter
The 2.2L transaxles do mount on the FE3 engine as well. The FE3 is VERY similar to the 97+ Kia Sportage engine, however the camshafts have different profiling for torque and the crank and pistons are cast. The blocks are also somewhat different (It's a Mazda engine though!). This engine is only for the non-turbo cars for one reason and one reason only, the 2.2L manifolds do not match up. You would have to sculpt your own manifold for the turbo to work.
Only one questioned is currently unanswered and it is about the ECUs I don't know whether or not the 2.2L ECU will work on the FE3. But I'll soon find out.