ThumperPaul wrote on 02/05/24 at 16:42:25:Question: At what age or mileage should you stop attempting performance enhancements? Maybe I'm not asking this right... For example, swapping out the stock cam for say, a Web-Cam 466 (mild cam). It's a change that doesn't require doing a lot of other valvetrain work/changes. If those parts have normal wear and are still good, would the new cam be of benefit? I hear and see people making performance enhancements, but I'm always wondering if its worth it if other parts are aged and getting tired. I guess it depends....
Like you considering the flat top piston to replace the pop top. Note - I have no idea what all needs to happen with this type of piston swap either.
My engine has 18,000 miles on it, and that is likely barely broken in for a modern engine.....other than perhaps the cam chain guide and tensioner issue and head plug. The Savage engine can go a very long time with regular oil changes and reasonable care. Neglected bikes can have engine failure prematurely.
I don't believe a cam change has much affect on the engine reliability or longevity. It allows the engine to breath a bit better and make a bit more power - but it is not changing the compression ratio or rpm at which you ride.
If you start changing to a higher compression or larger piston with that cam change - you may make enough power that a worn clutch will need to be improved. And....there is always a need to keep your eye on the front pulley nut and make sure it is not coming loose.
The stock engine doesn't tend to break or wear out parts - most damage to Savage engines comes from neglect by not keeping fresh oil in the engine or using the wrong oil - or from too low of idle speed.
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