Tao Tao 50 engine upgrade

[remedyman]

I am looking to upgrade a Tao Tao 50. I am not sure what size to go with. I see a lot of 70cc upgrades. And over course I have that Tim Allen mentality of why not go as big as I can.

I am looking for best bang for the buck. Any recommendations or statements of experience would be appreciated.

Thanks all.

[dwint51]

im doing the same thing and from these threads there is a lot of problems over 70cc.i asked the mechanic here and he said the 90 and 100 cc don't hold up

[remedyman]

Originally Posted by dwint51

im doing the same thing and from these threads there is a lot of problems over 70cc.i asked the mechanic here and he said the 90 and 100 cc don't hold up

I have noticed that a lot of people only do the 70cc upgrade. Is there enough of a power gain to perform this upgrade? Does anyone here speak from personal experience regarding the reliability or lack thereof from the larger sizes. I know more power doesn't equate to more speed without other upgrades, but what kind of speed can we expect a 70cc motor to achieve with said upgrades? Can a 70cc motor really push you to 60mph?

Which lends itself to the question, what does increasing your displacement by 45% do to your fuel economy? I have had 500-1000cc motorcycles and I know what kind of economy to expect from them, but they perform differently than scooters.

Thanks for the advice.

[4getful2]

You're asking alot? 60 mph with the small tires and for it to hold together long term?

[remedyman]

Originally Posted by 4getful2

You're asking alot? 60 mph with the small tires and for it to hold together long term?

Not really. I am more than capable of putting larger tires on it. I just don't want to do that for the power that it has. It would kill acceleration.

[SirYes]

I would go with the 50mm bore 69mm valve or some people go with the big valve head. Im running 69mm valve head 22mm carb. Check out my thread

[blueboy5000]

No. A 70cc gy6 engine will probably NOT get you to 60mph, it might hit about 50mph, but even that's pushing the bounds of reality, as a stock gy6 150cc only goes about 50mph.

Speeds must be GPS VERIFIED to be claimed, as the speedometers of these scooters are highly inaccurate.

[SirYes]

Originally Posted by blueboy5000

No. A 70cc gy6 engine will probably NOT get you to 60mph, it might hit about 50mph, but even that's pushing the bounds of reality, as a stock gy6 150cc only goes about 50mph.

Speeds must be GPS VERIFIED to be claimed, as the speedometers of these scooters are highly inaccurate.

i hit 60 mph on my on mine http://www.scootdawg.net/showthread.php?t=54045 proof!!