so, i've done the mpfi swap but now i want to throw in a larger engine without breaking the bank. i was thinking of a dohc zc. having already dont the mpfi swap in my dx what else would i have to do? will it mount up with my tranny, do i need a different computer? i know i need mounts, but what kind do i need? when i call the yard what engine/specs do i ask for? any help would be great. thanks

 

The ZC engine will bolt directly onto a 88-91 rex tranny, SI is the best tranny to use. As for the ECU the rex ECU will work but an 88-89 integra computer is the best because of the more aggressive fuel mapping. I'm thinking of doing the same swap in my 89si. I found a ZC engine for $595 with under 40,000 miles on it on http://www.nippon-motors.com, but you can get it with the tranny for only $645, so it's a great deal to go with the tranny for only $50 more. You can find an integra ECU on the web for fairly reasonable or just stick with the rex ECU.

 

^^^^ to add on to that..... you have to use the Si ECU if you do use a CRX ECU. And you can also find the ZC ECU on ebay sometime, they range from $20-$70

 

so, i already have a si ecu due to the mpfi swap, the zc wil bolt directly to my dx tranny? any thing else? dizzy, mounts, any othre wiring???? thanks guys

 

everything will hook right up - you will need to do some wiring changes at the distributor - you will need 88-89 integra upper radiator hose

 

what dizzy wiring changes would i have to do? i already had to do some changes during the mpfi swap due to this one being an si dizzy? what other changes do i need to do? i don't need to get new motor mounts?????