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Old 11-09-2003   #1
AJ
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Join Date: Aug 2003
Location: Crystal, MN
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Ok so I am out an about thinking of differant stupid shit and started thinking about fuel. More specificly trying to find the whole trail leading to knocking and such. So we lay out the fact that we want the fuel to be "lit up" by the spark plug and not by compression as that leads to knocking. But when you bring it the issues of the differant levals of octane I am wondering how the compression ratio factors in more.

Is there a related formula for this? With the stock Compression Ratio we need 92/93 octane for best pump gas results and running lower octane results in poor performance. But adding 117 octane (C16) seems to allow us to run car for the most power. Is there anything that puts a limit to what octane would best suited out needs? Where too much could reduce power? Even though we see higher #s from the higher octane gas could we see anything higher at an octane of say 110? I guess I am just looking for more info for when it comes to raising compression and I think boost plays an effecting part as well.

Just a few thoughts and I think Im gonna go out and try and find my own answers and hope I don't sound like a moron. Yes I am trying to relate this to a Turbo DSM setup, but feel free to explain if it varies from car to car.
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