Quote:
Originally Posted by pgfpro
They actually dyno all the engines before and after to determine a base line power and what element will be used to make improvements. They increase the compression ratio with a much higher comp piston. Also with their pre-chamber modification it won't need a lot of ignition advance because of the flame jet it produces vs a conventional kernel. The flame speed increases drastically. So this is why it works amazing for a lean burn engine. The dyno results show an increase in HP and torque across the power band.
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MAP will also affect the timing too, it's just too many variables that aren't being controlled for my liking. Can you buy them anywhere? It would be fun to test on a gas generator or something.
Another thought, with less ignition advance and higher compression ratio, the benefit of an offset crankshaft increases, since there's less stress on the piston on the compression stroke. A nice candidate to test a prechamber plug on would be a Toyota AR engine.