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      09-05-2019, 07:39 AM   #71
IMS-340MP
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Drives: 2018 340i MPPSK
Join Date: May 2018
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No, best thing is to find the best balance between boost and timing.

Which is the highest boost before the engine knocks.

Go back to the basics of how an engine works, the air fuel mixture ignites near TDC pushing the piston and rotating the crankshaft.

Whatever amount of Fuel and Air you push into the cylinder are useless if ignition occurs way below TDC the piston will not have enough force.

Quote:
Originally Posted by enemigo13 View Post
higher boost with lower ignition timing than with lower boost will generate bigger power. according to your logic - best thing would be run B58 natural aspirated with 32 degrees of ignition timing. Sadly, but you will get ~250hp only, not 430hp. Using more load, ignition timing will not stay the same, look at OEM ignition tables vs rpm vs load. Yes, timing is important, but without burning more fuel/air mixture you will not get power. Increasing boost is the main reason why you can increase 30-40% of power for turbo engines. Increasing timing with the same boost will end up ~5% gains with good fuel only.