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Post by jackrides on May 25, 2017 12:36:41 GMT -5
It would be great to hear riders experiences with higher performance cams. 50cc engines only. Please mention other mods, if any, derestricted or not, and whatever else you think is relevant.
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Post by tortoise2 on May 25, 2017 13:06:19 GMT -5
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Post by jackrides on May 25, 2017 14:49:53 GMT -5
I have been. Thx for your wisdom.
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Post by jackrides on May 27, 2017 22:31:38 GMT -5
Beginning to think no one has tried a different camshaft.
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Post by dan50 on May 28, 2017 0:44:51 GMT -5
The A-9 cam would probably work on a 50cc. You'll need a free flow air filter and better exhaust to take advantage of the cam. Stock carb should work, just have to up-jet.
More fuel/air into the cylinder should see a performance gain under most circumstances.
I didn't install one on my 139QMB until I put a 47mm BBK and 20mm carb.
My 2 cents worth.
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Post by greggkinney on May 28, 2017 11:49:52 GMT -5
on a 49cc with koso vari, 4g rollers, 19mm carb i noticed it just kind of woke the engine up litle at 5000+ rpm. with 47mm and 50mm ncyvari and every mod imaginable it seemed like i could streetch the top speed out alot more and be gaining more speed slowly without the rpms rising too quick.
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Post by 90GTVert on May 30, 2017 8:32:52 GMT -5
I used an NCY "performance cam" on the last 50mm kit I had. It picked up some power at higher revs. I'd expect similar results from the A9. Others also report gains, some put it 2nd to a BBK.
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