The 2zr-fe engine swap guide

[7:34pm]

Noob question. If you are using the corolla engine, but with the Xd ECM... then aren't you only limited to the power of the Xd ECM of 126hp?

Are you planning to do any tuning?

[ArmstrongRacing]

Originally Posted by 7:34pm

Noob question. If you are using the corolla engine, but with the Xd ECM... then aren't you only limited to the power of the Xd ECM of 126hp?

This is actually a very good question. I have heard arguments that the Xd exhaust header is tight and restricting causing the lower peak hp, but I dont know thats true due to almost identical torque ratings. Ive always suspected the Xd ECM does have a more conservative tune, but Ive been told thats not the case. The only way to know for sure....is for me to go do some dyno pulls. I have a complete Corolla engine and exhaust, so if I put down equal hp and torque, we will know its the Xd tune.

I do have a Camcon Ex to tune my 2zr with, once the BAR certificate is affixed.