I work at JDS Auto Imports and did this whole conversion myself. I called in Aaron Martan (Azcustom) to do the stainless intercooler pipes, which are done very well with a TIG and brushed to a nice finish. The customer will get this very shortly once a few gauges and things are sorted.
Original Evo I computer is used. I pulled the harness apart and stipped back wires I didn't need.
The turbo was bolted on 180 degrees, and the throttle was welded on the other end. Apart from that, it bolted in on the same engine mounts. (Well it would have with a 2.0 van, but with our 2.4L van we had to buy the 2.0 gearbox and clutch, flywheel etc...) Custom dump pipe is needed.
With the turbo bolted on backwards, there is alot of work changing all the water and oil lines to custom fittings of some sort. Plus having to pull the turbo apart to rotate the center. The wastegate actuator had to be welded and modified to fit.
The throttle is bolted/welded on as you see, and the TPS (now at the bottom) has to be rotated 180 degrees to clear stuff. Longer throttle cable with custom bracket.
The original Evo I waterpump and thermostate and everything is used, but a huge hole is cut in the firewall with long radiator hoses. The 2.0L vans have a bit more clearance here to start with.
Original radiator is used, with the outlets swaped over. Plastic electric fan controled by the ECU.
A new intercooler from Repco is used, fits in front of the radiator easy with lots of room. Intercooler pipe is tight on the left side, ok otherwise.
The airflow meter is in the original van location, and a stainless tube is made from it, curved into the wheel arch, and back into the engine bay to the turbo inlet.
Unlike the 2.0 vans, you can see I have power steering. The original van oil lines bolt to the Evo powersteering pump. Only had to mod 1 fitting, it was easy.