Taking ou a 1.8 and putting in a 2.5 is just asking for trouble 4-->6 cyl how fat can one mans wallet be
The swap is only plausable for those with the KF to go to the KL
The differenes between the DE and the ZE are as follows
1: flat top pistons in the ZE(compression ratio 10:1) as compared to the dished tops in the DE (compression ratio 9.2:1)
2: camshafts
KL-31 in ZE (max power @6500rpm) and KL-01 in DE (max power @6000rpm)
3: intake ports in ZE heads are square and are oval shaped in the DE
(comparasin)
4: Intake manifold in ZE has a
long neck or a
curved neck and larger internal dimeter to LHS merge (after VRIS) compared to the
short neck on the DE
5: ECU is different between the two engines
6: And there are differences in the Airflow meter
Thats about all I can come up with for now so if thats not good enough then poo to you all.