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Old cam for New cam
Old cam for New cam
letting myself in for.
Thanks Bob D
- schrader7032
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Re: Old cam for New cam
If you get that far, I've not heard good things about the 336 cam. If I remember correctly, this cam was never designed for street use. It was designed for a racing program in Europe in the 1970s. In order for BMW to use it, they had to make enough of the part so that it qualified as an "everyday" part...the term for this is homologation. There are lot of other things that have to be changed to get this to work. The 336 cam resulted in very peaky power over 5000 RPM and the tuning aspects of the bike must be spot on.
Snowbum discusses cams in this site:
https://bmwmotorcycletech.info/cams.htm
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
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Re: Old cam for New cam
With the 336 you will loose low end torque mostly in the range of street riding. Not a problem if you wind the engine over 5K RPM or higher to pass a car or leave a stop light.
Other than that, I guess I would be concerned about physical installation of the new cam. Personally, I would stick to the stock cam. St.
Re: Old cam for New cam
The "Sport" cam works well, with the engine pulling harder from 5500 vs. 4500 RPM of the 308. It should be noted the the R50 and R60 cam has less lift and duration than the cam used in the R75 and larger engines. The Sport cams midrange can be improved by advancing it's timing.
- srankin
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