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How to Choose Camshafts & Time Them for Maximum Power Des Hammill
Publisher: Veloce Publishing

By Rob Hosking – Choosing a camshaft is pretty simple. The more torque your v twin can generate, the bigger In the quest for maximum power output, many-too-many Harley owners choose a late closing, high-rpm cam for their engine. If a cam has a 108 degree lobe centerline it means that the max lift on the Intake and exhaust is 108 degrees apart on the cam. Torque cams have less valve overlap in general than high rpm HP cams. Fujifilm's raft of FinePix cams at CES are headlined by the HS50EXR, which aims to please those who love point and shoots, but aren't quite ready to make. The problem with such choices is that the engine seldom spends time in the rpm range favored by such cams. As a result, the camshaft dictates an engine's power curve and at what point in the RPM range the engine will produce maximum horsepower and torque. Most cam manufacturers give you a rough idea on track size, and a set in stone RPM range to go from, so the basic homework is done by them. By studying the lift profiles of all the camshafts and comparing them to the dyno data, I drew a few conclusions. Once your RPM range is known, you will have an easy time finding some cams that may work, but how to narrow it down from there? The big power cams had a couple things in common: poor low-rpm performance and idle. EBooksBay is an FREE eBook Search Engine & does not host any fine on it's server. For a camshaft to work as intended, it must always be rotating.