I’ve seen sleds win Haydays with giant secondary springs. Also seen others win rockin a Polaris Red (weak) in a button clutch. From what I’ve seen over the years the overall setup is more important than clutching theories.
A tach isn’t a measure of performance. Timers measure ET not tachs. A tuned pipe resonates based on heat. Bringing a pipe to full temp takes time. As pipe heat increases peak HP RPM’s should also increase. If your clutches go to full heat RPMs and the pipe is at 600 degrees your clutching is out in left field. These are two strokes with tuned pipes. Peak HP RPM is not a static number.
Many years ago I bought a set of pipes. 9200 was were everybody was spinning them. Luckily for me I was a broke college kid who didn’t have money for a new set of weights for a couple of weeks. My sled only pulled 8700 RPMs. Lined it up with the other piped sleds and walked them all repeatedly. Saved my money and got the weights I was told I needed to run. Lol, I got stomped. My tach sure looked good though! Couldn’t get my old weights running the wrong RPMs in quick enough!
Bottom line, test for performance not RPM.
A tach isn’t a measure of performance. Timers measure ET not tachs. A tuned pipe resonates based on heat. Bringing a pipe to full temp takes time. As pipe heat increases peak HP RPM’s should also increase. If your clutches go to full heat RPMs and the pipe is at 600 degrees your clutching is out in left field. These are two strokes with tuned pipes. Peak HP RPM is not a static number.
Many years ago I bought a set of pipes. 9200 was were everybody was spinning them. Luckily for me I was a broke college kid who didn’t have money for a new set of weights for a couple of weeks. My sled only pulled 8700 RPMs. Lined it up with the other piped sleds and walked them all repeatedly. Saved my money and got the weights I was told I needed to run. Lol, I got stomped. My tach sure looked good though! Couldn’t get my old weights running the wrong RPMs in quick enough!
Bottom line, test for performance not RPM.