Peter Carroll/Toronto

My K29 is seriously tired. I'm not sure I want to rebuild it again and am thinking of something new. However, it worked amazingly well on my car. If I do replace it, I want to find something similar but more modern. So to do that I need to find the compressor map for what I have.

I am not sure which variant I have but I think the A/R is pretty high on mine. Can you tell from the picture?

http://www.driversmeeting.com/pcarroll/albums/43/517

The car is a 1981 930 but the engine is an 1990 Carrera 964. It has: big NA intake and exhaust ports, ported and polished; custom fatter headers to match; 8.5:1 forged custom pistons, knife edged crank, shot peened rods, EFI, etc... It breathes like a hurricane. So the K29 worked great.

We're not sure about ball-bearing turbos in an oil cooled car. blah blah blah. Lest I digress.

Anyone got a set of K29 compressor maps?


Here's the build album:

http://www.driversmeeting.com/pcarroll/albums/43

KeithC2Turto

You might take the housings off and mesure your inducer/exducer size as a referance if you can not fine the map.

Not an experet on turbos but you might start by looking at the GT35R seems to be popular w big 930 motors. http://www.turbobygarrett.com/turbob...R_714568_3.htm