Thanks.
i bort a pete tindal smoke system over here in the uk. this is what it comes with
http://www.petetindal.co.uk/Smoke%20System/
heres my set up its a bit tight i know sorry about poor quality
here is where the injector goes into the exhaust
I started by drilling the exhaust and tapping it to get a thread for the longer injector to screw into.
I made sure the two holes in the injector where not pointing into the exhaust valve.
And then fixed it in place with two nuts on each side of the injector. But remember to put two nuts on the side the tube connects to or you will have to take the injector off and put them on.
I then straped the pump and tank into the fuselage making sure it didnt effect the cg and connected it all up with fuel tube and using the given tube from the pump outlet to the exhaust.
I pluged the pump into a spare channel on the recever, put some smoke oil in it, fire up the engine and flicked the switch. im yet to mix it with another channel though.
hope this helps if you want some more detailed pictures just ask.
thanks chris.