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yms 28mm pipe. whats your opinion? anyone running it?
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yms 28mm pipe. whats your opinion? anyone running it?
whats your opinion in the yms 28mm? also what rpm does it make peak performance?
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Not a good answer, but I *think* I remember that this is a decent midrange pipe, but by no means a "race" pipe. I think that 1man8scoots might have some info on it.
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- Downsouthdio
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Its nice for a contessa or a cast malossi..i think it peaks around 9k ,1man or graphite9 can give more info
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- Wheelman-111
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Greetings:
I called it my Hot Surfaces pipe because of the Lawyer Labelling. Anyone who can't anticipate that an exhaust pipe will be dangerously hot shouldn't be operating a motor vehicle. Or scissors. As South said, it peaks around 9K with great torque and near-stock noise levels. It's a good choice for Sport City riding, and durable.
I called it my Hot Surfaces pipe because of the Lawyer Labelling. Anyone who can't anticipate that an exhaust pipe will be dangerously hot shouldn't be operating a motor vehicle. Or scissors. As South said, it peaks around 9K with great torque and near-stock noise levels. It's a good choice for Sport City riding, and durable.
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"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
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Re: yms 28mm pipe. whats your opinion? anyone running it?
9k is pushing the power ceiling. The 28mm is for 50mm low revving bores, the 26mm is for 72cc low revvers, 30mm is for mini stroker 86cc+ low revvers. They don't fall apart as bad or quickly as a pg. They make a lot of grunt down low then taper off after 8k.
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Yms is a good company.
Re: yms 28mm pipe. whats your opinion? anyone running it?
So the 28mm is for the bores smaller than 72cc? And the 26mm is for 72cc-85cc?1man8scoots wrote:9k is pushing the power ceiling. The 28mm is for 50mm low revving bores, the 26mm is for 72cc low revvers, 30mm is for mini stroker 86cc+ low revvers. They don't fall apart as bad or quickly as a pg. They make a lot of grunt down low then taper off after 8k.
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Re: yms 28mm pipe. whats your opinion? anyone running it?
50mm = 81.25cc.
Re: yms 28mm pipe. whats your opinion? anyone running it?
Oh i c. Thanks I think I got to grab the 26mm cause I have the 28mm on my 72cc and my top speed so far has been 56mph. Wonder if I put on the 26mm it will make a difference on my top speed.1man8scoots wrote:50mm = 81.25cc.
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Try changing your gear ratio.
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Re: yms 28mm pipe. whats your opinion? anyone running it?
Solid advice there. Top speed is relative to power vs rpm and gearing. If the 26mm gives you more rpms then you will gain speed.superfast1234 wrote:Try changing your gear ratio.
Re: yms 28mm pipe. whats your opinion? anyone running it?
which pipe would you recommend using that would be able to rev and something that isn't too loud.graphite9 wrote:i would say good pipe for stock bore, or cast. THe contessa seems like more of an aggressive bore vs the cast. You may rev to 9k with that pipe, but I bet your going to see peak power at 6-7500, then losing power 8k, hitting 9k if your lucky. Don't expect high rpm's or power, that being said its probably a great fit for mild builds, and low noise levels.