Sorry to spoil your surprise. Make some moon wheel covers & then pull them off to everyone's amazement.
That particular job was $3,700.... And since it was homeowner install friendly, they saved some $... By buying direct from me and installing it themselves they are able to save 30% - 50% over conventional means....
I've been working on this for over a year and finally started it up today. 5600 hp centrifugal compressor. It's just like the R56 turbo....but just a "bit" larger at 12,400 Lbs. About 5X the weight of a MINI.
Meh... My supercharger makes more power than that. I've got the dyno graphs to prove it but, well... um... my scanner is broken! Yeah! that's it! My scanner is broken.
Well... A year in development and now after three hours of testing I can see that the bearings are running hot. Time to pull it apart for tweaking... Sigh....
No, the bearing alignment is good... The housing is line-bored to 0.0005" true position (regardless of feature size). It's the bearing to shaft clearance that I need to modify. Normally I design for a diametral clearance of 0.0012 inch/inch of shaft diameter. The shafting is ~5" in diameter. But my tests are indicating high shearing loss and reduced oil flow. So I am opening up the clearance by 0.004". ..(0.0016 inch/inch of diameter). The increased clearance will reduce the shear and also increase the mass flow of oil. So the bearings will generate less heat and the increased flow will help to carry the heat out of the bearings too.. The lubricant is a mixture of refrigerant and polyolester oil (POE). The refrigerant tends to flash out of solution at low pressure zones in the bearings...(bad). And due to the 2-phase flow characteristics, it is very difficult to computer model. So this week I'll try to dial in the performance by experiment. This is going to be a long week.
Absolutely.. It is like getting a haircut. It's easier to get it cut off than to put it all back on...
R134a (the same as in your car)..... not ammonia. And the journal bearings are fluid film type with tilting pad thrusts ... Each bearing in my compressor sees 9,000 pounds of radial load. Rolling element bearings cannot handle the load and speed ...plus they are life limited.