So now what? what are the good upgrades? By abispax (Read 788 times)

[abispax]

Now that i know i can mess with the engine,i wonder what upgrades can i do,too make,it go faster...right now my top speed is 45 miles,50 if i force'it,i would like to be able to reach 55 to 60 with regular power,so i wonder if theres a bigger head and piston i can install to achieve this, current setup is gy6150cc, thanks for any help.

[tvnacman]

well the faster you make it the faster it will fail . roller/sliders weights will play with the power band . Some like air intakes and performance mufflers to make it sound faster .

John

[abispax]

but,isit posible to upgrade head and piston to 189cc

[sprocket]

There is no replacemment for displacement... but by the time kick it up to 182cc, it may be cheaper to buy a 250 cc

You won't be able to ride at 60 mph...all the time, the engines are not designed for that...

Save your our money and buy a motorcycle...

[h3nry]

a 250cc engine will cost about $900-1000. Upgrading the existing 150 to about 180cc will cost about $600. The advantage to the 250 is its water cooled and will run at the higher speeds with no issues.
I have a 61mm BBK(170cc I believe) and can get to 55mph WOT, I get there pretty quick tho (which means final drive gearing can be switched out to achieve 60 comfortably) but again, the temperatures are up there compared to normal and that will cause issues in the long run.

[jct842]

of course remembering that the gy6 engine has the same crank and case that it was designed for and what was that? a 110cc motor? If it was a 150cc design then going to 180cc would not be quite so radical but it is still a little engine that is already built up with a 150cc cyl. no gy6 engine will ever be happy running at wide open throttle for very long.

[Random Hero]

Jul 16, 2012 1:08:04 GMT -6 h3nry said:

a 250cc engine will cost about $900-1000. Upgrading the existing 150 to about 180cc will cost about $600. The advantage to the 250 is its water cooled and will run at the higher speeds with no issues.
I have a 61mm BBK(170cc I believe) and can get to 55mph WOT, I get there pretty quick tho (which means final drive gearing can be switched out to achieve 60 comfortably) but again, the temperatures are up there compared to normal and that will cause issues in the long run.

Where do you get your parts? Upgrading to 180cc is about $300.

[tvnacman]

I can get a 180cc kit for $125 shipped to your door .
John

[sprocket]

John you little devil!

[abispax]

Jul 16, 2012 14:00:11 GMT -6 tvnacman said:

I can get a 180cc kit for $125 shipped to your door .
John

for real....

[h3nry]

I was talking more stroking than bore, I get cylinder kits with head for ~$90 shipped depending on the guys mood lol. Just was thinking a +2 crank it ~200 and a quality jug ~125