ORIGINAL: RVM
I just want for my engine to have a higher compression ratio so I don't have to run lots of nitro.
Is the power gain from an increase in compression linear with the power gain from an increase in nitro?
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I'm fairly certain that the power gain with nitro and reduced compression is greater than with low or no nitro and increased compression. The problem is that nitro broadens the acceptable needle setting, while no nitro fuel makes needle adjustments more critical. Just what the instant gratification crowd does not need. Still, it would be nice if they offered a few of their engines with the old high compression ratios.
Hobbsy pointed out a while back that his modern Saitos run just fine on 5% nitro, just not as crisp. If I was worrying a bunch about crisp, like for 3D flying, I too would be using high nitro fuel. So he may have a point that this is not really a problem.