Here's an useful turbo design calculator written in MS Excel. Corky Bell's Maximum Boost or Hugh MacInnes' Turbochargers is a must read to design a turbo system properly.

NOTE: Just rename the file from .zip to .xls.

-Guycali

turbocalc.zip

Where do you buy the turbo?

Yea, good question... if someone was to want a turbo, where would you get one?

I would get one from:

http://www.turboneticsinc.com/index.html But then my car would not be "authentic"!

Or rebuild one myself. I will write up a technical article-I have to rebuild one in the next several weeks for the 240Z anyway.

I had a terrific Turbo guy, but he has vaporized!

There is quite a lot to getting a turbo that is right to both an engine and a right foot(here in the USA).

Will

It's still the right foot here in OZ. Luckily they kept that on e all the same.

Apparently there was one car that has an adjustable A/R ratio on the exhaust side, that gives the best of both worlds, spools up fast but doesn't choke the top end. Not many people use them because theyt are bulky and don't fit in tight engine bays. The Z how ever has lots of room.

Bit of off track useless info there. Pity I can't remember more about this, then it might be useful to someone.