PX200 Standard Piaggio barrel - 27.75 bhp

Post your Vespa dyno graphs here! But graphs & spec info only, keep the chat in the 'dyno chat' section ;o)
MattsDad
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Thu Dec 19, 2013 8:51 pm

200 barrel, not the BGM one. Standard barrel, piston and head; jacked up a bit, skimmed and ported, no welding.
JL pipe, flatslide carb, variable ignition.
Just done for a bit of fun!

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Last edited by MattsDad on Thu Jan 23, 2014 10:12 am, edited 2 times in total.
COCKSPEED TUNING

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ArmandTanzarian
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Thu Dec 19, 2013 9:05 pm

If I'm reading that right then it must be nigh on unrideable. It has less power than a standard factory P2 until it reaches more than 6000rpm.
Meus Lambretta est non infractus. Is est quietus.

mick1
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Thu Dec 19, 2013 9:07 pm

Impressive :shock:

What type of variable ignition ? (is it mapped ?)

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drunkmunkey6969
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Fri Dec 20, 2013 12:28 am

Have I read that right Tony? Standard thick-cast rings revving to nearly 9000 rpm? Maybe I've misunderstood?

MattsDad
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Fri Dec 20, 2013 12:47 am

Yes. Previous Pinasco tune rings the same.
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MattsDad
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Fri Dec 20, 2013 1:17 am

ArmandTanzarian wrote:If I'm reading that right then it must be nigh on unrideable. It has less power than a standard factory P2 until it reaches more than 6000rpm.
Its likely the landscape of the graph, factory would peak circa 9 at around 6k from experience of friends who have dynoed.
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johnny rotten
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Fri Dec 20, 2013 12:07 pm

Is it a HB stage 4 too end?

Muppet
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Fri Dec 20, 2013 4:32 pm

johnny rotten wrote:Is it a HB stage 4 too end?
ifin it was id expect a flatter powerband
C’est la vie

MattsDad
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Fri Dec 20, 2013 5:26 pm

johnny rotten wrote:Is it a HB stage 4 too end?
:) No it is not a HB.

It does rev on a bit more as well Dan, I didn't put it up but we tried a race pipe also, one which I thought would suit best but it is for a different engine and it lost some power:

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225worb
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Sat Dec 21, 2013 8:57 pm

F##k me .....must be a reeet monster to ride....
Ive got a reed 225 malossi tuned blah blah and that's only knocking out 26.5 hp....
love to see/ride it ....is it rideable ???

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