Oh no!! That is horrible news.... Just yesterday I finished my CTSC installation from last years GB. This morning I booked with the dyno guy to check the fuel pressures and AFR's on Thursday. Now I am worried!! Sound like a ring failure maybe?? Have you any idea how the AFR was low? Do you mean rich or lean? Have you been driving your car really hard? Seems odd if a lot of the US guys can drive with no issues, even on the track that this should happen so quickly.
Not sure what else to say... Good luck with getting it fixed. Will you keep the blower on now or is that a scare to far?
Yes, it is very bad news
It took me a long time to decide on the CTSC and when decided to do it to take some precautions, like the Zeitronix unit to monitor my AFR and fuel pressure gauge.
With the stock fuel pump and CTSC voltage booster, the car had always run fine. I have plenty of AFR logs that don't point to any problems.
Am not sure what is causing the problem, probably piston rings.
When I picked up the car a few weeks ago with the Walbro installed, AFR were low and at times very jumpy, as in running extremely rich, like 10.0 or sometimes even lower. At that moment, I blamed it on the new pump and higher fuel pressures.
Probably, the problem was already there, but now surfaced.
And yes, I have been driving the car on the track, and when doing that, I was pushing it.
At this point, I'm not sure on what to do. Let's first find what the problem is and what caused it.
To be honest, driving the NSX with CTSC is quite a thrill compared to a stock car. With the SC, it's quite easy to keep with basically new cars like the R8, 911, M3 or M5.
All I can say is that I thought I was doing things carefully. Not so it seems now