Sophomore Rider
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Posts: 217
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Joined: Mar 3, 2013 8:42:52 GMT -5
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Post by buford1488 on Jan 25, 2014 14:09:12 GMT -5
mill did we ever get 60mph? over last summer i got some new air flow results in this lil' sucker. may need some one to see how it performs... heard you got the 50 go fast scooter back.....with my new results it should give 15% more torque..with all your other mod's..............thanks.................buford
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Post by alleyoop on Jan 25, 2014 14:30:43 GMT -5
Very nice job Buford, not to many people now a days have the skills and know how to test and have the equipment to test flow.
Alleyoop
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Sophomore Rider
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Post by buford1488 on Jan 25, 2014 14:36:02 GMT -5
thank alleyoop..i put in many hours to get it to the ultimate level...with these small heads.......
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Post by rockynv on Jan 26, 2014 7:24:57 GMT -5
thank alleyoop..i put in many hours to get it to the ultimate level...with these small heads....... Have you done anything with the Piaggio 4 valve 250cc heads? Micah Shoemaker at AF1 Racing has been doing some headwork with good results with the stock valves and such just by cleaning up the airflow. |
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Sophomore Rider
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Posts: 217
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Joined: Mar 3, 2013 8:42:52 GMT -5
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Post by buford1488 on Jan 26, 2014 7:45:55 GMT -5
no i havent..but i did do a little on a four valve 125 or 150 head for the gy6 i think..i got better results from 2-valve then 4-valve..yea to get the best you would have to put in bigger valves. they don't give you much room to do it with the 4-valve. but im sure i could figure out if i had some used junk heads..just to see how much i could cut the combustion chamber bigger to put in bigger valves... but yea just cleaning up the ports and changing the way the air flow is help's alot.........thanks...buford
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Post by JerryScript on Jan 26, 2014 20:21:08 GMT -5
The big head is the one upgrade I've put off. After reading this thread, I think I'll be taking a ride over to scrappy's soon! Thanks for the info millsc, and thanks for all the hard work on the heads buford!
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Post by millsc on Jan 26, 2014 21:07:36 GMT -5
For those with airsal kits a stock chambered big valve head is the way to go, only one way to get one, send Buford a message.
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www.ScrappyDogScooters.com
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Post by scrappydogscooters on Jan 27, 2014 18:51:41 GMT -5
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Post by UniqueSP on Jan 28, 2014 14:00:08 GMT -5
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Post by millsc on Jan 28, 2014 14:37:30 GMT -5
This thread was from 50cc upgrades, this go around I'm doing the 150cc upgrade stroker crank project. Will have new pics of the big valve head posted on that thread after the head is finished.
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Post by UniqueSP on Jan 28, 2014 17:52:49 GMT -5
This thread was from 50cc upgrades, this go around I'm doing the 150cc upgrade stroker crank project. Will have new pics of the big valve head posted on that thread after the head is finished. ohhhhh haha makes sense. My bad lol. |
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..BAD TO THE BONE..
