Once again, very long time between posts!
The operation of the car has been pretty faultless. I wasn't really driving it an awful lot, partially because I have four cars, but an element was that the fuel economy was really bad, like
roughly 14MPG in yank language.
I was invited from some friends to experiment in a free test with an engine-cleaning device. Basically the test involved dyno testing the car on some power runs, letting it idle for half an hour with a device feeding hydrogen through the air intake and then carrying out the dyno test. This is apparently one way to clean a motor with a lot of carbon build up, on my car it didn't seem to make a difference but a free opportunity to put it on the dyno was good for me anyway.
I booked myself in for a track day at the Phillip Island GP Track with the Porsche Club of Victoria who I am a member of. Before the track day in addition to normal preparation, a friend and I used an 'Innovate' wide-band oxygen sensor on the Porsche and had a crack at tuning it. The mixture was quite fat even at cruise, and when I got on full noise it went down around 11:1! We haven't got the tune perfect, and I'd have to say the all-out power doesn't seem to be any better, but mid-range transitional throttle response is improved and the fuel economy is night and day. I just want to drive the car everywhere now!
Anyway, some pics of the track day. The tyres on the car are great street tyres but quickly reached their limit on the track, and it was a stinker at about 40°C (104°F). For the local guys, I started off the day with a club instructor (very helpful, as I've never been to that track and aren't awfully experienced) doing 2min mid 30's, and finished off with a 2:11 flat. The car got to 186km/h on the front straight.
The brakes and tyres really didn't come with the racing conditions awfully well, but I had a fantastic day and nothing was damaged. Definitely want to do some more of this before I sell the car.