High Revv, Light Weight, What am I missing?/Different type of Conversion |
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High Revv, Light Weight, What am I missing?/Different type of Conversion |
Gunn1 |
Mar 5 2016, 09:13 AM
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#21
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
With all of the talk about light weight, high horsepower replacement engines for our favorite Porsche, have we forgotten all of the lightweight, high revving 4 strokes out there? There are dozens of possible alternatives currently being housed in various motorcycle brands. Are there any working examples of this type conversion out there? Thinking besides the lightweight, they tend to be compact and have smaller cooling, electrical and mechanical systems. Would seem using one for a conversion would be a no brainer. What am I missing?
Thanks |
roblav1 |
Mar 16 2019, 08:54 PM
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#22
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
You could drive around town at 5-6000 RPM but would need about 8500 RPM to accelerate at a reasonable rate. As you said (Sir Andy), sprocket changes don't affect the torque characteristics - only the RPMs at wheel revolution rate. A 14 front 50 rear sprocket is where I'd start. And 13" or 14" wheels would help too. I rode sport bikes for years, and you just get used to the RPMs.
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