One of the jobs I'm not really looking forward to is modyfing the Rover injection loom. For starters, half the wires are not required, most will have the wrong "ends" on the them, then there is the resistor pack for the injectors. Being an old type injection set up, the injectors are low resistance (meaning about 2.5 Ohms, compared to around 15 Ohms). This in itself is not a problem, until (if like me and are fairly clueless as to how injection works) you try and figure out how they work. One Rover loom:

From what I can make out the injectors are (when ignition is on) always live, but only when the ECU earth the circuit do they actually do anything, rather than current being supplied by the ecu, and earthing elsewhere on the other side of the injector circuit.

Anyway, this afternoon, I've mostly been trying to mount the air temperature sender. This needs to be in the plenum to give a true reading. Don't forget turbos can heat the compressed air considerably, so sender has to be engine side of intercoolers. Also managed to sort out the throttle position switch, which involved making a piece up connect switch with throttle butterfly.

I didn't really want to take the plenum and all the gubbins that goes with it off; so on the offside the are several screw in parts that were originally used for brake servo vacuum etc. I took one of the hollow bolts out, drilled and tapped, then shortened both threaded part and bolt head so my sender pokes through into clear air. It looks as if a certain Heath Robinson Esq was involved, but I'm sure it'll be fine.

This is all that's left of the Rover loom - the resistor pack and injector wires. I also need to include the air temp sendor, map sensor, water temp (will use Rover jobby), throttle position sensor (potentiometer).

That big black thing on top of the engine is the intercooler - don't worry, it'll be fully ducted.

This here is a pic (centre fitting) of the air temp fitting crafted earlier today. It's airtight so we should be ok!

Here's a couple of pics of the layout - this one is obvioulsy from the front of the car and you can see that the plenum is now rear entry rather than the previous efforts. The intercooler is connected to the back, with air entry to each side:

This is the offside turbo - you can see how tight it is - I've had to run of of turbo air pipes round a chassis diagonal. This may require additional engine bracing if air pipe keeps getting knocked off. The steering column will have heat protection - the exhaust will be wrapped, and there may be a heat shield with dedicated cold air feed. Not sure yet.

I've had to do some fairly drastic mods to the bodywork to cover the above, and as there will be a lot of heat, had to be creative in methods of dissipation. The whole panel has been moved out at rear by about 3". The front side scoop has one of the air filters under it - same for other panel. This pretty much guarantees cold air for engine.

Anyway, got to go!