Thread: cam questions

I was just looking at high performance cams and how affordable they are and have a few questions.

will i see noticeable gains on a stock engine?

will i see noticeable gains on a bored 88cc engine?

thanks

A cam is a complicated descision when you are building an engine
cost wise I think they are cheap

If you stick with a stock engine and add a 'hot' cam you will probably see a noticeable increase in power in the mid to high range of the rpm band. In turn you might lose a lot of low end torque and make the bike slower overall.

That said if your keeping the bike consitently in the rpm range where your cam is best suited, it will have more power

An engine is really a system, balance is the key to having a good working engine

If you go to a high performance cam, and couple it with exhaust, head work, carb and intake, the whole system will work together and make a lot more power and run consistently

I put hotter cams in both a stock 70cc and lifan 110, and found in both cases the performance was worse, but peak horsepower in high rpm areas was a little better

If you build the entire engine around your cam of choice, that is the best situation, you can balance the flow, compression, intake and exhaust features to get your desired result