2283 Billet wheel, RS6 turbine. Machined OEM BW TT225 turbo. Uprated bearings, all NEW parts. Component, then VSR balanced. I have around 800 bucks in parts and labor into this thing, PLUS the cost of the turbo. Direct fit for TT225, can be used on mk4 with the TT225 exhaust manifold (available as well).

Of the 2283 wheel? That is very well documented.

2.2" Exducer
83 percent of that for inducer.

what are you aiming at? DDilenger told you iit is 2,2" exd. and 83% for in. so: 2,2*0,83= 1,826"+ (radial clearance*2)

If you werent located in the us, it would be mine

normally the clearance tends to be round about 0,5mm, so 0,02" +- depending on the manufacturer. With the 2283 being the biggest K04 Compressor Wheel it is easy to find out whether you have this one or not: If your measured ID is smaller than this, you might have the 2280 Wheel. If it is even bigger then you have the 2283 Wheel it'll be at least the calculated diameter of the Inducer 2 posts above and the rest varies through clearance.

if you still have it when mine blows I'll get it. I thought mine would have died by now.. so far the best 230 bucks shipped for stock replacement chinese k04-023... I've ever spent. 

I'm not trying to break it...but it sees 20ish psi to 6000+rpm on the regular. Since I deliver pizzas in the car I drive pretty aggressively also. I'm just surprised because the last one made it like 3000 miles.. there may have been a lubrication issue though