What does LSA do for a cam?
Airflow and LSA A wider LSA moves intake- and exhaust-valve events farther apart and creates less overlap, which hurts intake-wave tuning. “When you’ve properly tuned a performance motor, you create high- and low-pressure waves in the intake and exhaust that help cylinder filling,” said Comp Cams’ Billy Godbold.
Does adding a cam increase horsepower?
Consider installing a performance camshaft. Performance cams increase the duration and timing of the valve openings during the engine stroke, increasing horsepower and making your car accelerate more quickly.
What does camming Harley do?
By installing a cam upgrade on your Harley, you can increase horsepower or torque by essentially changing your valve timing. You’ll be letting the exhaust out and fuel/air in at very specific times. By changing this timing, you can increase maximum torque in different ranges, such as low or high.
How does LSA affect engine performance?
A wide LSA reduces valve overlap, softens the idle and improves overall drivability–especially on the street where performance engines benefit from 112 to 114 LSA. Nitrous engines, which make plenty of power and torque, often run wide lobe separation angles to moderate cylinder pressures and temperatures.
What does a cam upgrade do?
Upgrading the factory camshaft is a great way to gain more power and torque. It’s usually the next step after improving exhaust and the cold air intake. Chromoly pushrods give drivetrain stability and don’t induce valve float at high rpm like the factory pushrods would.
What should the cams be on a Harley Davidson?
For practical terms, most cams for Harley are in the range of 96-108 on intake and 112-102 on the exhaust. Tailoring the valve opening and closing points on an actual camshaft is accomplished by varying the lobe centerline locations, changing the LSA, and refining the profile shape itself.
Can a LSA engine be upgraded to a LS9?
Like other LS engines, a cam swap is common. The LSA has a very small camshaft. Upgrading to a LS9 camshaft is worth about 30 hp, however, it won’t make more power until 4,800 rpm. It’s really only worth it if you plan on running at high rpm.
What kind of camshafts does fuel Moto use?
Fuel Moto has extensive experience with V-Twin engines and camshafts. We find these the most versatile cams on the market for late model twin cam engines.
Why are camshafts so important to a motorcycle?
Camshafts by their very nature are altering valve opening / closing times through many factors such as timing, duration and lift which come together almost like a recipe for your specific motorcycle. Often times this means that the “right” camshafts for you are NOT the camshafts that worked well for another rider.