Benefit is two-fold: 1) It has 1mm vs. the stock 2mm rings, so it can rev past 8,000 RPM's without the rings floating and risking a seize 2) I needed a new piston for it and had a spare BGM on the shelf
At the most basic, two ports means less room for fuel/air mix to enter the cylinder, on on each side (L & R) of the cylinder w/ the Exhaust on the bottom. The third port is called the "boost" port and adds a port on the top, which allows the mixture to better push the exhaust gases out the exhaust port. And a "Five Port" is really just a three-port, but with the 3rd/boost port split into three channels. Maybe it's time to do a quick one-off video on cylinder ports. :)
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garasi scotters kita
Sounds great. What is the benefit of the BGM piston?
Benefit is two-fold:
1) It has 1mm vs. the stock 2mm rings, so it can rev past 8,000 RPM's without the rings floating and risking a seize
2) I needed a new piston for it and had a spare BGM on the shelf
Apakah sampai kecepatan 100 kmh?
This motor probably could do 100 kmh, but I never tested it. The motor that's in it now has done 103 kmh, and that's with 10" gearing on a 8" wheel.
what are the drawbacks of 2 port compared to 3 or 5?
At the most basic, two ports means less room for fuel/air mix to enter the cylinder, on on each side (L & R) of the cylinder w/ the Exhaust on the bottom.
The third port is called the "boost" port and adds a port on the top, which allows the mixture to better push the exhaust gases out the exhaust port.
And a "Five Port" is really just a three-port, but with the 3rd/boost port split into three channels.
Maybe it's time to do a quick one-off video on cylinder ports. :)
@@ChandlerHowell-Vespa what exhaust is this?
@@SuperMonik It's a SIP Road 2.0. Lots of folks run a Polini box on 8"'s, but I had the Road 2.0 on the shelf, so I just used it.