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View Full Version : How about putting an XR200 cam in a 200x



81Rmachine
09-06-2007, 08:55 PM
My friend and my brother both have 200x's and they each build them up and try to see whos faster. They both have DG pipes and UNi or K&N air cleaners and jetted richer. My friend who has an 85 just pretty much copies everything my brother has on his 84, but now he wants to put in an XR200 cam since it is cheaper than an ATC200X performance cam. I know dirt bikes are built to run much stronger than trikes and usually have higher compression and bigger cams. All I'm wondering is how much bigger this XR200 cam is than a stock 200X. Has anyone you know of or yourself done it and how close should it be to a high performance cam?