91 DX Wagon Swap

[pasouza]

Blew piston rod on cylinder 3 a number of years back and getting around to doing an engine swap. Found a 91 CRX that had its original engine swapped some years back (engine has 145K miles on it) to a ZC DOHC. What might be the major issues I need to look for? I figure it will drop right in, tranny and all. Does the ECU need to be swapped? I plan to pull the wiring harness out of the CRX and use that. Any ideas what I do for the differences in AC mount? Both AC units are good and I recall the DX has having been in decent running order some years ago. Of course it could have gone south by now having not been used in 5 years. The crx AC was replaced about 2 years ago (before accident) and I believe it still works. To get it into DX though it has to be discharged. Any ideas on how much folks charge to vacuum and recharge a system?

Thanks much for any assistance.

 

[K2e2vin]

Everything should swap over with zero problems.

Not sure about the A/C costs, but definitely use the compressor out of the CRX.

 

[pasouza]

I picked up the crx today and found out that 4th and 5th gear are gone on the transmission. Since it goes in 1,2,3, and R I am assuming a gear problem internally. My other assumption is that the tranny I took out of the DX that went with the D15B2 should bolt up and work fine. Is this a fair assumption or are their some issues including driveshafts?

 

[efhondakid]

Im a bit confused here, are you trying to put the DOHC ZC in the Wagovan or what? I think the DOHC ZC uses a different tranny bolt pattern, but im not 100% sure on that and is the wagon AWD?

 

[K2e2vin]

You're thinking about the D16A1. The DOHC ZC uses the normal 88-00 pattern.

The DX transmission will work fine and so will the axles(I believe your stock Wagon axles should work too).

 

[efhondakid]

Thanks for clearing that up Kevin, but if its AWD youll have to use the stock wagon tranny. Sounds like a pretty good build.

 

[pasouza]

Thanks for the help Kevin. The wagon is just 2wd.

 

[pasouza]

Another question. I read an article here about the ZC motor. It appears I have a 2nd gen JDM ZC motor here and there was a note about making sure to use the right flywheel and clutch combination if I were to bold the stock tranny to the motor. Does this mean I should use the flywheel off the D15B2 on the ZC and then mount the tranny?