Gordy
Well-Known Member
Check to make sure nothing is loose
Anyone tried one of these?
- Thread starter TYDYLWAVE1
- Start date
TYDYLWAVE1
Member
yeah I did
Gordy
Well-Known Member
Where's it making the noise from?
TYDYLWAVE1
Member
idk I think its the engine itself
Gordy
Well-Known Member
But is it the exhaust? Or where?
TYDYLWAVE1
Member
I figured it out it was the exhaust its loose
TYDYLWAVE1
Member
View: https://youtube.com/shorts/nQzZWP0qrog?feature=shared
I was about to make a video of me going hog up a slight hill but then my phone died right before I took the video
weird thing is I came back inside and it had 11%
same thing happened earlier too
It accelerates real fast and goes a few mph faster too
Gazorp
Member
With that filter you're improving the volumetric efficiency of your motor. Two stroke motors have an innately
lower "VE" than that of a four cycle engine especially at higher rpm/speeds. As four cycle engines have valves and a dedicated piston stroke to "scavenge" the cylinder they have a built in advantage over the two stroke engine. Just using the comparison between the two stroke and four stroke as an example.
Getting as much air in and out of a two stroke as you are able to get will give you more power and speed. I don't know if you are using an expansion chamber exhaust or not, but that and as mentioned lifting the jet needle a notch may be of benefit. The expansion chamber will push some of the air fuel mixture that is wasted into the exhaust, back into the cylinder at certain band of rpm's. You will feel the boost when that happens.
Most of the expansion chambers I've seen for these little Chinese motors don't specify whether they are low, mid, or high rpm tubes. Your gear ratio may ultimately be what makes the difference that you feel.
But this is just the limits of a two cycle engine with a few simple bolt on accessories. If you go beyond this you are going to be doing some real tinkering. You may wind up with a motor that screams within a certain rpm range but unfortunately we are limited to one gear ratio to harness it. This is where motorcycles may have six gears that are used to harness that rpm band to get their speed.
There is only so much you're going to be able to do with these little Chinese motors.
lower "VE" than that of a four cycle engine especially at higher rpm/speeds. As four cycle engines have valves and a dedicated piston stroke to "scavenge" the cylinder they have a built in advantage over the two stroke engine. Just using the comparison between the two stroke and four stroke as an example.
Getting as much air in and out of a two stroke as you are able to get will give you more power and speed. I don't know if you are using an expansion chamber exhaust or not, but that and as mentioned lifting the jet needle a notch may be of benefit. The expansion chamber will push some of the air fuel mixture that is wasted into the exhaust, back into the cylinder at certain band of rpm's. You will feel the boost when that happens.
Most of the expansion chambers I've seen for these little Chinese motors don't specify whether they are low, mid, or high rpm tubes. Your gear ratio may ultimately be what makes the difference that you feel.
But this is just the limits of a two cycle engine with a few simple bolt on accessories. If you go beyond this you are going to be doing some real tinkering. You may wind up with a motor that screams within a certain rpm range but unfortunately we are limited to one gear ratio to harness it. This is where motorcycles may have six gears that are used to harness that rpm band to get their speed.
There is only so much you're going to be able to do with these little Chinese motors.
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