cams

Unless you are planning to race at Reno, trying to improve on a four cyl Lycoming cam is a waste of time and money. Performance has a very questionable reputation. Stick with the shops like Barrett and Mattituck.
 
performance increase

I do not have any experiance with that company. For performance parts & service I recomend Lycon aircraft engines. I do not think that a cam upgrade alone will provide a useful performance increase. Engines are or should be a matched system. Changing one item will not help unless that one item was miss-matched to the system. If you want to increase the performance of your engine I would have your cylinders ported & polished, high compression pistons installed, custom ground cam matched to other engine componants, high flow exhaust system, and electronic ignition with timing curve matched to engine componants. Remember engines are air pumps, more air in & out = horspower. With this aproach a 320 based lycoming can produce well over 200HP with normal RPM's and engine life.
Good Luck, Russ
 
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