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The zc engine you will need is the 2 generation from a 88-91 civic with 129 hp. It will bolt using the stock mounts. Use your stock wiring harness with zc ecu that revs 7200 or get a d16a1 1987 ecu that revs up to 7500. My friend has this setup on his 91 civic and the car runs great.if its a d series zc they will all go right in no problem it will bolt right up besides the driver mount will have to be swaped around with the stock motor
DONT DO 2ND GEN! too much wiring to swap to 0bd1. Im not saying that it is a total pain in the ass and it couldnt be done, but it wouldnt be worth it. may as well stick with the first gen obd0/non-obd, whatever you wanna call it. I have a couple of them ecu's layin around too.Well arent 88-91, and a 2nd generation zc two diff engines? Ive been told 88-91 Civic Zc DOHC engines are the 1st generation and 92-95 Zc DOHC engines are the 2nd generation.
the JDM ECU for the OBD0 DOHC ZC is the PM7 - it has fuel cut-off at 7500rpm - you can also use the USDM 88-89 Integra PG7 (not 86-87 Integra PG7, which controlled the 86-87 vacuum advance ignition and won't work with the 88 and later electronic ignition advance) which is essentially the same as the PM7 and also has fuel cut-off at 7500rpm - the PM7 has a speed limiter at about 112mph where the PG7 doesn't have a speed limiter - you can also use the CRX/Civic Si PM6 ECU, however, fuel cut-off on the PM6 is 7200rpmUse your stock wiring harness with zc ecu that revs 7200 or get a d16a1 1987 ecu that revs up to 7500.