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If the clutch wasn't readjusted to run at 9500 rpm, only a 50% improvement would be gained since there's only another 1.7 hp available at 8000 rpm. In the example above, the stock clutch would be adjusted to hold the engine at 8000 rpm from the factory.
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#Cg engine vs gy6 engine mod
Without readjusting the clutching to realign the controlled rpm with the new power peak, full advantage of the engine mod may not be realized. The original equipment manufacturer (OEM) has probably optimized his gearing to coincide with the stock machine’s peak power rpm. When modifying your engine you've more than likely shifted that peak power rpm. The job of the clutch tuner is to identify that point and dial it in. The question becomes- if you were limited to operating your engine at only one rpm, what would it be? The rpm at which peak power occurs, of course, and therein lies the beauty of the CVT transmission- it's ability to hold the engine there. If you were to examine the power curve of a typical 2-cycle engine it would rise, and then fall very quickly near its power peak- hence the notorious reputation of the 2-stroke as a "pipey" variety compared to the more docile and predictable 4-stroke. This concept is key, and the crux to the whole tuning exercise. However, unlike the CVT's other cousin, the automotive style automatic transmission, the CVT is designed very cleverly to continuously vary the transmission gear ratio to do one thing only- hold the engine speed constant. No worrying about stalling the engine, or keeping it in the right gear- it's all done magically by the CVT. Of course, for novice riders the auto trans is a huge advantage in simplifying the riding experience. Whereas the manual trans requires proper selection of the gear ratio to maintain power, the automatic trans does the thinking for the rider. The automatic CVT, or continuously variable transmission, is a cousin of your typical multi-speed, constant-mesh, gear-driven manual gearbox.
#Cg engine vs gy6 engine how to
The principles described here apply to all of the Asian mini-quads as well as some of the Japanese minis as well such as the LT80.īefore jumping into how to do it, it's necessary to understand what the clutch does and why it was designed that way to begin with.
![cg engine vs gy6 engine cg engine vs gy6 engine](https://i.ebayimg.com/images/i/322454413553-0-1/s-l1000.jpg)
This article will attempt to dispel some of these misunderstandings and offer some insight into the how's and why's of mini quad clutch adjustment. It's thought by many to be a matter of hit and miss, or more supremely a black art of sorts. Of the many modifications that are routinely performed, clutch tuning is probably the most misunderstood. I dont know if this has been discussed but here are some links, this talks about a mini quad with a cvt and works the same for the scooters