Sorry, if I bore you to death, but here's the next update after dyno day 3:
O 2 sensor was changed, but made no remarkable change overall, engine dynoed with 272 PS - still too low. Good news: Once again no overheating.
During and between the dyno runs my techie checked nearly everything: Timing, timing belt compression, leaks, sensor data etc. - everything was okay with one exception: The cam of the rear cylinder bank does not change to the "sharper" profile to full extend at the Vtec point (i hope you know what I mean). It seems that the Vtec system lacks of oil pressure here while it's okay for the front cylinder bank. Of course that reduces overall power.
Now while I write this my techie inspects every little part of the system (electronical, mechanical and hydraulic), changes gaskets, lines etc., also valves if necessary - strictly after the service manual advices. That way he now learns all he needs to know about the details of the Vtec system - good side effect :wink:
Don't forget: We have no Mark Basch or Bridgewater Acura here - I guess my (non Honda-)techie has already become the best NSX expert in a 100-miles-circle or maybe more in the last 6 years he worked on my car. There is only a handful Honda dealers in whole Germany that ever had a NSX in their shops.
Next week there will be at least one more dyno day (or whatever it takes to get things working) with the new parts and I still hope for about 290 PS and more.
Any thoughts or experiences on this weird Vtec problem here?
