the HK$ manual in the turbo FAQ has some good information in this.
also search for windor's 4agte project (the link i have to his site doesnt seem to be working for me), his braided oil line set-up is basicaly how i did mine on my 2nd 4agte (which is how the HK$ guy's did it). he has some good pics on his site showing how he did it.
The pictures of the coolant lines didn't turn out at all. The short of it is that I use the lines that used to heat the throttle body. I run 1/4" hose down to banjo fittings. You can buy banjo fittings from Metric and Multi-Standard Components. I stuck a short piece of tube into the banjo and silver solderded in place. Then you can just slide your hose over it and use a hose clamp.
If someone has a good way to transition from banjo fittings to some other more standard fitting please let me know. I haven't found anything elegant yet.
i found it was better to tee into the heater lines that run to the center of the car. that way my TB coolant lines operate the idle down on the 4age TB like factory. i have brass hose tails from the turbo that the heater hose goes over with some hose clamps, works fine.
I have a dsm t25 and don't have a oil return fitting. I was wondering what I should use, or should I make my own? I figure that I should use about 1/2 hose. Where can I get a bung to use on the oil pan? I had the coolant lines t"ed into the the heater lines, but I had some leaking problems. I want to do it right this time, and not have any leaks.
dan, my t25 didnt have a oil return part to it either. so i cut out some flat metal (was about 4-6mm thick) drilled the 2 bolt holes and a 5/8 hole in the center for the drain. i then got some 5/8 pipe (cut it off some old water outlet i had laying around) and got that brazed to my peice of flat metal.
i then got another peice of the 5/8 pipe brazed onto my sump while i had it off, i use 5/8 high temp rubber hose to join the 2.
Paul, i dont have any trouble with TB freezeing down here in Oz. haha
i kept the coolant lines to the TB to save having any problems with idle down once the engine warms up.