Originally Posted by
project_hatch
I beleive only difference in the 2 is the head...one is y7 and the other is y8 not sure...but they are completly interchangable for those years, everything will interchange perfectly on those 2 cars, take a weekend, some corona, a cherry picker and some purple gloves and get started.
What the hell are you talking about....?
No worries. If the tranny in the EX is still good, it will have slightly shorter gears. Although, it may not be a good idea with your daughter.
Aside from that, you can keep the axles where they are, in the respective cars, same with shift linkage. Just need to pull the engine and tranny, then swap the ecu.
The only other issue you'll run into is the map sensor. The DX has the map sensor on the firewall. The EX has it on the throttlebody. So.... You can keep the ex throttlebody with the car, along with the engine wiring harness, and the rest of the d15b7 stuff will bolt up.
Option be would be to keep the engine harness with the car and mount the map sensor on the firewall form the dx. You'll just have to run the vaccum line.
Now the reason you're keeping the engine harness with the car is that on the EX the engine harness has the map sensor connection. On the dx, the map sensor connection is part of the chassis harness.
The only other difference in the harnesses is that the ex will obviously have the two plugs for vtec, while the dx will not. So, you'll have two extra plugs on the engine harness when all is said and done.
Cliff's notes: keep axles (with abs rings that the dx axles don't have), throttle body and engine harness with car. Swap in engine. Use the mounts on the engine already. Swap ecu. Done.