trueraiderfan Posted June 22, 2006 Report Share Posted June 22, 2006 Ok I have tried googleing what they are as well but the only thing it shows me is where to buy one at . I wanna know what makes a cheeta a cheeta or a cub a cub, and what is the diffrence between them. Any help would be grealty appericated thanks. Quote Link to comment Share on other sites More sharing options...
Ruko Posted June 23, 2006 Report Share Posted June 23, 2006 The Cheetahs have power valves, the Cubs don't. Also the Cheetahs use a bigger intake and reed cage, while the Cubs are made to use all the stock parts. Quote Link to comment Share on other sites More sharing options...
Animalman294 Posted June 23, 2006 Report Share Posted June 23, 2006 The Cubs are the Cheetah's little brotherbut different designs. The cub can make its power using stock parts, butif you add add aftermarkets, you've got yourself a screamer. :beer: Quote Link to comment Share on other sites More sharing options...
trueraiderfan Posted June 23, 2006 Author Report Share Posted June 23, 2006 The Cheetahs have power valves, the Cubs don't. Also the Cheetahs use a bigger intake and reed cage, while the Cubs are made to use all the stock parts. Power valves ? Hmm But 2 strokes dont have valves so what is a power valve. Quote Link to comment Share on other sites More sharing options...
korndawg Posted June 24, 2006 Report Share Posted June 24, 2006 Powervalves are basically an exhaust valve that is actuated using either electricity or vacuum, since the banshee has no cam to run the valve. That's the best description of it I can give you, if someone else can do better, please feel free to jump in and do so. Quote Link to comment Share on other sites More sharing options...
trueraiderfan Posted June 24, 2006 Author Report Share Posted June 24, 2006 ok i got ya that run. they dont have a cam so that means they have there exhust and intake run off of the pistion skirt right? Quote Link to comment Share on other sites More sharing options...
korndawg Posted June 24, 2006 Report Share Posted June 24, 2006 I got you a better explanation from Eric Gorr's website. How Exhaust Valves Work An exhaust valve system is designed to increase the engine's low-end and midrange power. There are three different designs of exhaust valve systems. The first-generation design uses a variable-volume chamber mounted to the head pipe to change the tuned length of the head pipe. A butterfly valve is used to separate the surge chamber and the head pipe. At low rpm, the valve is open to allow the pressure waves in the pipe to travel into the surge chamber and effectively lengthen the pipe and reduce the pressure wave's magnitude when it returns to the exhaust port. These systems were primitive and not very effective on 125cc dirt bikes. Honda and Suzuki used this type of exhaust valve system in the mid to late 1980s. The second-generation design features valves that control the effective stroke and the time-area of the exhaust port. These valves are fitted to the sub-exhaust ports and the main exhaust port. The main exhaust-port valves operate within close proximity to the piston to control the effective stroke of the engine. The effective stroke is defined as the distance from TDC to when the exhaust port opens. At low rpm, the engine needs a long effective stroke, which results in a high compression ratio. At high rpm, the engine needs a shorter effective stroke, longer exhaust duration, greater time-area, and a lower compression ratio. Yamaha used this system starting in 1982 on the YZ250. Honda's HPP system is similar and was used on the 1986 Quote Link to comment Share on other sites More sharing options...
lowriderb Posted June 24, 2006 Report Share Posted June 24, 2006 http://www.cpindinc.com/ site for cp industries (builder of both cheetah and cubs). Quote Link to comment Share on other sites More sharing options...
trueraiderfan Posted June 24, 2006 Author Report Share Posted June 24, 2006 sweet guys thanks for the replies Quote Link to comment Share on other sites More sharing options...
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