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@Racer x
The reason to set idle at 8k would be that the range we'd need to tune the carburetors for is smaller. Sufficiently magnified all smooth curves can be approximated by straight lines, and we can use calculus.
The price per forged piston is $200? This isn't prohibitive and might even be within the budget. We can also lower the compression ratio with different pistons, so we get 2 for 1.
@warlord
Seems like a viable option, for I don't see any reason why the upgrades cannot be done individually. First get the turbo working, then add intercooling, then add forged pistons, etc. If we get two intercoolers, we can run them in series until we get forged pistons in which case we'll run them in parallel, etc. And a chain is only as strong as its weakest link, so if you can't get the turbo on, you haven't wasted money on e.g. coolers, yet. Unfortunately humans are prone to the fallacy of sunk-cost, so many will waste money, nevertheless. But, it would be nice to have an upgrade plan, because e.g. the best choice of turbo clearly depends on the stuff you intend to add later.
According to the gas laws of physics compressing gas with a temperature of 330ēK compressed at 10:1 will raise its temperature to 3300ēK, so if we manage to cool the gas to 300ēK before compression, it will only raise the temperature to 3000ēK. Of course, a lot of the heat is absorbed by the piston, cylinder walls, etc. which gives one of Racer X's arguments its weight. My concern is that if we don't use any intercooling, we get fully hit twice, because we're pumping in more AND hotter gas. Since we *want* to get more gas into the engine, trying to cool first seems like the more obvious thing to do first, but the obvious is often the enemy of the correct.
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