HP, how much can a LIL 2.5L take? How do they Blow?

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PK,

I am interested in what you and Gary are doing, otherwise we would not be chatting. Maybe you will find that missing piece of the puzzle. I don't think a 986 2.5L would survive for long at 200hp/liter but I could be wrong. I have been wrong before.

If you still want more, methanol is a good place to start. It has a lot more energy/gal than gasoline and has a chilling effect on the A/F mixture so it works similar to intercooling. We used to run two motors on 50% methanol and at the end of the race the carb was completely iced over. I have no experience with it in a fuel injected motor so I don't know what other issues are involved.

If you want to continue to develop this motor why not tune it like the pros. Take it out to Willow Springs, bolt on some instrumentation and push it around a bit. After a few runs download the data to a laptop and take a look. A picture should emerge of the strengths, weaknesses and opportunities for further development. You can do basic tuning on a dyno but there is nothing like tires on pavement to tell you what you really want to know.