so i currently bought this engine for my s4 swap, now the engine is a half breed of a s4 and s5 parts, example, s4 front cover s5 irons and housings, s4 turbo, 2 tps sensors, 318 s4 turbo 2 afm ect. its confusing but anyways heres my concern and i hope i get some experienced help. i have an s4 t2 ecu and harness i was going to use but iv noticed the knock sensor hole over my housing spark holes, this tells me this might be a s5 block and the ecu and harness wont work due to the fact the s4 housings (which does not have the knock sensor pot over the spark plugs) and s5 housings have both different distance between spark plugs, there for timing should be different as well, so pretty much i have s5 housing and 2 tps sensors wouldn't the block be S5 or did the luce t2 engine have different housings of its own? and if its a s5 it will require me to get an s5 afm, ecu and harness? (DUH! stupid question but ensure me please)

 

I just finished this same swap a couple months ago into an 88 se. I used the n/a wiring harness so things will be a bit different. I did not hook up the knock sensor at all. Tps just used an s4 and respliced the connection. I did not mess with timing either. T2 afm, n333 ecu, n318 boost sensor, and all brackets, water neck and sensors were swapped over from the old na motor. Oh and almost forgot SWAP the OIL PAN. I was told it would fit and did not remotely come close. Motor mounts dont come close either. A far as the specs on the luce motor i have no idea if it used s5 housings. That will be something for me to research later.

john ny

 

s4 turboII's had a knock sensor hole right under the oil filler neck.