Very impressive results from working with zero clearance. Spool up is very quick.
Check it out:

http://www.6speedonline.com/forums/showthr...light=clearance

 

Just wow. That guy has a dicipline of a ninja. This would be cool to try if someone had a spare turbo.

 

You have to have that sort of control when breaking those in.

The blades actually cut themselves on the wall as they heat up so that they're a perfect fit at temperature. You have to bring them up to heat slowly, because you want a gradual shaving, not bending and shearing. Skip any steps or try and rush it and you'll end up with a poorly performing unit or worst case an expensive paper weight.

we used a unit of that design for a project here at work for a marine application.

Sadly, I tried to get them to order me one as well, but they poo-poo'd the idea.

 

I wonder what he used to coat the housing? Jet coat/high temp ceramic coating?

 

I didn't notice where he called out the coating, but you can coat the turbo housing with a high temp coating (jet hot, swain-tech, insert your coater of choice here).

 

i can't find this product anywhere on the internet, im interested though