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High Performance Bicycle Engine Tips and Motorized Race Bicycles We all want our bicycle engines to push our bikes faster. Get exclusive engine modification tips and suggestions from us. Also check out some of our racing members builds

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  #1  
Old 05-18-2011, 04:27 PM
theblueboy theblueboy is offline
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Location: Pittsburgh
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Default How Do I Make My 80cc Go Faster?

Hey guys,
Just wondering how would I make my 80cc motor go faster?
I think it's broken in now, but I can only get 30mph max on a good stretch
of road. I've upgrade to a 36 tooth sprocket and that only enhanced the speed
like 3mph. I really want to hit 40mph(not down a hill) but just know how to do
all the crap needed to get good performance. What should I do to make it go
faster is the bottom line. I need links to the thinks I need to buy.

Help!

Andrew
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  #2  
Old 05-18-2011, 04:30 PM
matthurd matthurd is offline
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Default Re: How Do I Make My 80cc Go Faster?

http://motorbicycling.com/showthread.php?t=29851 maintenance-how-get-higher-top-speed-29851.html
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  #3  
Old 05-18-2011, 04:38 PM
theblueboy theblueboy is offline
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Default Re: How Do I Make My 80cc Go Faster?

Does any of that actually work? I need personal experience methods.
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  #4  
Old 05-18-2011, 04:52 PM
matthurd matthurd is offline
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Default Re: How Do I Make My 80cc Go Faster?

tell ya what, do a search on all of those methods listed in that thread.

if you don't instantly believe it look into the science of it.

but the short answer is all of that works.
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  #5  
Old 05-18-2011, 05:13 PM
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DaveC DaveC is offline
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Default Re: How Do I Make My 80cc Go Faster?

One area seldom touched on is advanced lubricants. Techline Dry Film Lubricant on all rubbing parts is one thing that can be done. Using Prolong Engine Treatment is another. I used Prolong in my race motors and never had an engine failure.

Mixed at 10% of the oil volume then add the oil to the fuel as normal. This is for the first gallon, then at 5% of the oil volume from then on. Oil bath clutch at 5%, other words 1 part Prolong, 19 parts clutch oil.

The bottle comes in two sizes, the smaller bottle labeled "booster" is the same stuff. You need so little the bottle will last a long time and it is quite a bit cheaper, about $8 a bottle.

Prolong uses the natural electric charge that is made from spinning metal to bond with the metal. Did you ever see the Prolong ad that they ran a motor without oil for a very long time without seizing? It's factual. Products like Slick50 were bogus and they settled a suit from the FTC for $10,000,000 for their lies. Prolong has never been sued thus substantiating their claims.

Start using it after the first gallon from break-in, don't use too much in the mix, doesn't help, and I'm sure you'll feel a difference.
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Old 05-18-2011, 05:30 PM
theblueboy theblueboy is offline
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Default Re: How Do I Make My 80cc Go Faster?

How much faster do you think it could get my bike to go?
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  #7  
Old 05-18-2011, 05:54 PM
matthurd matthurd is offline
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Default Re: How Do I Make My 80cc Go Faster?

top speeds on these things fully upgraded and tuned tend to be 45 mph or so, after that wind resistance is too high for the little motors to push you any faster.

but those are under ideal circumstances. i'd say 35-40mph is your top speed on average with the upgraded bikes.

more importantly can your bike handle the higher speeds? and what about stopping?
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  #8  
Old 05-18-2011, 06:07 PM
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DaveC DaveC is offline
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Default Re: How Do I Make My 80cc Go Faster?

Quote:
Originally Posted by theblueboy View Post
How much faster do you think it could get my bike to go?
I couldn't even begin to guess. All you can do is try it or not and I'm in the "try it" camp. I have used the products and will again.

When I first started using Prolong in my racers(gokarts and oval track 4 cylinder cars) the cars dropped 15 degrees in water temp. That's a LOT of friction reduction. With track conditions different every time your on the track I can't give you a "2/10ths per lap faster" kind of testimonial but I'm sure you'll feel a seat of the pants difference.
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Old 05-18-2011, 10:30 PM
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Nashville Kat Nashville Kat is offline
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Default Re: How Do I Make My 80cc Go Faster?

a billet intake with a good carb- something other than 50cc stock

narrower tires and wheels- if you can get a 27"x 1 1/4 or700C x 32 or 38 front wheel- just try it out a short run before worrying about the brake (a short caliper will fit then) but just give a narrow bolt on wheel a try and see the difference for yourself

even a chopper motorcycle has a skinny front wheel- it just rolls better.
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  #10  
Old 05-19-2011, 12:20 AM
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bairdco bairdco is offline
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Default Re: How Do I Make My 80cc Go Faster?

all the bolt-on, buy it now "performance" parts won't give you much of a boost unless you build your motor right to take advantage of it.

my race bike has the NT carb and the stock exhaust, both re-worked and modified, and the Grubee GT4, also re-worked, modified, and some other semi-secret tuning tricks. and it's never been beat in a street race.
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