Stage 2 II, Power or Torque cam?
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Join Date: Aug 2008
Location: Lafayette, Louisiana
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A heavy touring bike will benefit more in the real world from a torque cam than a horsepower cam, regardless if it is an Evo, twin cam, M8, or whatever, and will be more enjoyable to ride.
The only M8 I rode was bone stock, so my statement is a broad generalization.
I think one way to demonstrate the difference is go to the dealer and test ride a VROD as a comparison. The VROD engine is soft on low end torque, good on mid rpm, and great at high rpm horsepower. Contrast that with an honest evaluation of how your bike rides.
The VROD is fun, so you VRODDERS out there can leave your panties appropriately adjusted, as this isn't a jab at you or your bike.
The point of the demonstration is to give you a first hand feel and rough approximation of what a high rpm horsepower feels like compared to low rpm torque. That difference is compounded further with weight, with a light bike being better able to cope with the lack of low rpm torque better than a heavy bike.
I think Harley's site has a dyno chart for both cams you are interested in. You want peak torque to be at the rpm you honestly spend the most time at. For most people that are being honest with themselves that will be in the low to mid rpm range.
Again, just broad generalizations here. I went through a lot of hand wringing a few years ago with the refresh and mild build of my Evo and that line of reasoning is what lead me to my cam choice.
The only M8 I rode was bone stock, so my statement is a broad generalization.
I think one way to demonstrate the difference is go to the dealer and test ride a VROD as a comparison. The VROD engine is soft on low end torque, good on mid rpm, and great at high rpm horsepower. Contrast that with an honest evaluation of how your bike rides.
The VROD is fun, so you VRODDERS out there can leave your panties appropriately adjusted, as this isn't a jab at you or your bike.
The point of the demonstration is to give you a first hand feel and rough approximation of what a high rpm horsepower feels like compared to low rpm torque. That difference is compounded further with weight, with a light bike being better able to cope with the lack of low rpm torque better than a heavy bike.
I think Harley's site has a dyno chart for both cams you are interested in. You want peak torque to be at the rpm you honestly spend the most time at. For most people that are being honest with themselves that will be in the low to mid rpm range.
Again, just broad generalizations here. I went through a lot of hand wringing a few years ago with the refresh and mild build of my Evo and that line of reasoning is what lead me to my cam choice.
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FatBob2018
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12-03-2018 06:32 AM