Post by prodigit on Dec 20, 2013 5:03:23 GMT -5
Like I expected, when I bore out the stock exhaust of the EVO150, I feel a slight decrease in torque in the mid-range (4-5,5k RPM), and more torque in the higher range (5,8-6,3k RPM on the meter).
After 42MPH on the meter, the EVO150's variator maxes out, and hits the torque curve.
I feel that the engine is not like a standard 50cc china engine, in that it's torquecurve seems to be between 5,8k RPM, to 6,3k RPM; unlike the 50cc's, which have their torque curve around 7k-7,5k RPM.
At 6k RPM, doing round about 45-49MPH, the scoot runs butter smooth.
No engine vibes; plenty of acceleration power when necessary; it can keep that speed almost all day, even with a 300LBS rider.
Once going above 50MPH, it gets a bit lazy in acceleration to 60MPH.
The rule of the thumb I mentioned before still stands, the last 10MPH usually are slow in acceleration.
This also applies to my 750cc Honda Shadow, the last 10MPH go very slow (from
+ to 103 MPH).
For that reason I do believe that it's better to keep riding long rides, at least 10MPH lower than your top speed.
If the EVO150 had manual gears, it could work very nicely as an eco bike.
Currently it consumes 66MPG average, which is pretty lousy.
It does 45MPH at ~6k RPM.
A gear change could bring that down to 4,5k RPM easily, which would improve gas mileage from 66MPG to 88MPG.
Lowering to 3,5k RPM could bring up gas mileage to 110+MPG.
Too bad that currently the only low priced, manual geared motorcycles, that are non sports bikes, are the roketa MC-05-127, which has a slightly too weak engine to move in traffic fluidly. It needs just a tad more power.
And one step up are some $2,5k naked bikes, that take forever to be delivered (I cancelled my order with MX Motorsports Miami, after they failed to deliver the merchandise after 3,5 months).
After 42MPH on the meter, the EVO150's variator maxes out, and hits the torque curve.
I feel that the engine is not like a standard 50cc china engine, in that it's torquecurve seems to be between 5,8k RPM, to 6,3k RPM; unlike the 50cc's, which have their torque curve around 7k-7,5k RPM.
At 6k RPM, doing round about 45-49MPH, the scoot runs butter smooth.
No engine vibes; plenty of acceleration power when necessary; it can keep that speed almost all day, even with a 300LBS rider.
Once going above 50MPH, it gets a bit lazy in acceleration to 60MPH.
The rule of the thumb I mentioned before still stands, the last 10MPH usually are slow in acceleration.
This also applies to my 750cc Honda Shadow, the last 10MPH go very slow (from
+ to 103 MPH).For that reason I do believe that it's better to keep riding long rides, at least 10MPH lower than your top speed.
If the EVO150 had manual gears, it could work very nicely as an eco bike.
Currently it consumes 66MPG average, which is pretty lousy.
It does 45MPH at ~6k RPM.
A gear change could bring that down to 4,5k RPM easily, which would improve gas mileage from 66MPG to 88MPG.
Lowering to 3,5k RPM could bring up gas mileage to 110+MPG.
Too bad that currently the only low priced, manual geared motorcycles, that are non sports bikes, are the roketa MC-05-127, which has a slightly too weak engine to move in traffic fluidly. It needs just a tad more power.
And one step up are some $2,5k naked bikes, that take forever to be delivered (I cancelled my order with MX Motorsports Miami, after they failed to deliver the merchandise after 3,5 months).
