Power loss By motley (Read 1,741 times)

[ucwt]

Oct 2, 2017 5:41:45 GMT -6 czmdiver said:

Watch this guys Videos, I have worked with this guy some providing him some information.
He does a very good job with basics following correct procedure, knows his stuff when it comes to GY-6
www.youtube.com/channel/UCAgCD4f4U_rQYPrWIBktHqw

I know of Dan his shop is a couple of hops away from me.

[czmdiver]

Oct 2, 2017 3:58:33 GMT -6 ucwt said:

Larger displacement pushed the fat to limits of final drive.

44mm just wasn't enough to to get the fat past the threshold of fat + wind resistance

Ill help ya out with this
Lets say for instance the Gy-6 49cc make peak hp about 2.95 at 7,500 rpm I don't care if you have 3 or 3,000 hp the scooter will still top out at the same MPH at 7,500 rpm, the more hp will only get you to the same mph just Faster.
In the wind or up a hill will drag the motor's rpm's down and the mph will reflect the same.
Your Gearing is set along with your tire diameter. 3,000rwhp will not turn the Wheel faster at the fixed 7,500 rpm
Its simple math.
You must either change the gearing or Increase the rpm limit to turn the Wheel faster.
All the Cams on the market peak out a a Tater digger low rpm of around 7,500 then theres a valve Spring issue so moving in the direction of increasing the rpm is not the direction to go..

[ucwt]

Numbers don't lie






I mean I am not one of those guys standing around a car at the track in a cool shirt but
I am a guy that added More cubic centimeters and can do simple math.

4.85 difference tells me that wind resistance and weight didn't allow previous engine configuration to reach final drive's potential.