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Old 02-11-2015, 11:54 AM   #198 (permalink)
cosmick
Experienced UAW Mechanic
 
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Also, advanced ignition timing can sometimes help output, but the smarter mod is to make the engine give the "extra" output with the existing timing. The best way to do this is a more efficient combustion chamber, including the piston crown, rather than just static compression alone. The only practical way to do this is to start with a more efficient engine. For example, there's no way to make an LT1 as efficient as an LS1, or an LT4 as efficient as an LS6. So admit when you got the wrong engine, take it to the salvage yard, and trade it for something better. One exception to this might be, for example, a Toyota 22R for cheap dual-fuel, even with adding a turbo, rather than something like a 4G63T or an Ecotec. Of course, the 22R can't go to 2200 HP like a max race Ecotec can, but there's no perfection yet, nor on the horizon.
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