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I don't think your tuner will reach 9 hp with that kind of setup. Even with all the modding/tuning etc. But hey i love to see different. You might be interested in the following graph.The lowest score is from a complete stock Piaggio Ciao which over her in Europe has a 12/10 SHA carburettor. The other 3 graphs where from the 3 best exhausts we tested on the following engine; Polini Evolution
Not all, but many kits have this. Have a look at the pictures here by example;Looks like a 46mm stroke would fix this problem or looks like the porting is designed for.http://www.vespa-ciao.nl/forums.php?m=posts&p=441621#441621
Also check for Alsil Quich pipes.
Pullstarters getting popular for Vespa, also in Europe; http://www.vespa-ciao.nl/forums.php?m=posts&q=37527&d=0
Hoax, this engine has never been in production.The thing most closely compared to the "Zirri" engine is most likely the Sprocatti Evoluzione; http://www.vespa-ciao.nl/forums.php?m=posts&q=31911
Yhis must be almost plug and play, since you need to mill the cases.
Since a while there is also a Malossi performance ignition with fan.These are plug and play;http://www.ebay.it/itm/8097-ACCENSIONE-ELETTRICA-MALOSSI-POWER-PIAGGIO-50-CIAO-PX-SI-BRAVO-BOXER-/131945897992?hash=item1eb896a008:g:GZsAAOSwLF1X4aQQ
Since you was wondering about the 3 cylinderstuds(Piaggio) or 4(Puch) i was likely to answer this question. " I'm wondering of he retapped his cases for a four stud pattern or just drilled the kit for the bottom third stud.. Let me find that link."No need to fix 4 studs when still using a Polini cylinder for Piaggio. It's a 42mm Polini EVG with the top fins cut off to make room
I've seen this Ciao run and know this is just a Polini EVG 42mm cylinder for Piaggio. Worked so a Polini intake from a Puch will fit. Have a look at the photo's on the blog. Indeed finetuning the carbs is a hassle. You can consider this Ciao to be more for show and fun.Also the now owner of this moped is active on mopedarmy;http://www.mopedarmy.com/riders/fredzzz/The original builder;ht
I think it's just a normal Piaggio Polini cylinder and not a puch. Here a short clip of it running;
I think this topic on the Italjet Pack might help you. Indeed not that much documentation to be find, but on the second page there are some pages.http://www.vespa-ciao.nl/forums.php?m=posts&q=33810&d=0
Forget about this link, it's very outdated and just some text or info without testing these exhausts. Better check following link for a more detailed description.http://vespa-ciao.nl/forums.php?m=topics&s=22&o=title&w=ascThe first 3 topics are from some tests and you can see different topics for any particularly exhausts and their experiences.
Get a screwdriver to stick in between your flywheel and lock it against the frame. This way you can loosen the nut.
Be carefull to buy these Chinacrap carters. Have a look here!https://translate.google.nl/translate?sl=nl&tl=en&js=y&prev=_t&hl=nl&ie=UTF-8&u=http%3A%2F%2Fvespa-ciao.nl%2Fforums.php%3Fm%3Dposts%26q%3D35493%26d%3D50&edit-text=Better to find some good second hand cases
Indeed there's two versions of these frontwheels/mags. The difference is in diameter of these brakeplates. So you have to measure these brakeplates.
I've got these items new for sale.http://vespa-ciao.nl/forums.php?m=posts&q=36307&n=last#bottomThey called "varionaafdeksel" in Dutch.
Indeed the easiest way of putting on a bigger carb is with the SE carters. I've made several work with succes. http://vespa-ciao.nl/forums.php?m=posts&q=29073. Sorry for the foreign language but pictures will show a lot.
There are also kickstart Grillo's, Si's, Superbravo's and rare 2 or 3 speed kickstart (Super)Bravo's. These all have stock inlet timings since the crank itself is different from any other stock crank. Have a look here of an worked Malossi full round kick crank.http://vespa-ciao.nl/forums.php?m=posts&q=35370&n=last#bottom
Don't know of some issues regarding a Grande, but i do know the Bravo and Si type subframes make use of another version of the Top One. The route this pipe follows is more underneath your moped instead of the right side.With a normal Top One version for Ciao on your sub frame, your front fender may collide with the exhaust. You could cut your front fender to make a Ciao version fit though.
Keep in mind. There are two types of Malossi Too Bad exhausts. Both of them are really just copies of Giannelli exhausts.Old type Too bad= Giannelli RecordNew type Too bad= Giannelli FireThey do perform very different. Old version more torque but lower rpm, high end power. Where as the new version is a real rpm hitter for high top speeds.
Definitely go for the Proma Circuit if the choice is between the Proma and Simo circuits. But when i tip another exhaust on given setup. Try a Polini Top one or Giannelli Mega or Leovinci SP/Circuit. All these exhausts will perform well on a stock cylinder and do perform wel low end and mid.
Yes Marc, these cylinders from Simonini are not watercooled through the head. Unfortunately all the H2O sets for Vespa are not produced anymore and therefor hard to come by. Some shops do still sell the loose Eurocilindro radiator.
Indeed one of the best, but there are not many LC/H2O kits out there for Vespa.-Eurocilindro (Just head and radiator)-Polini 38,4mm, Polini 41mm and Polini 43mm H2O kits-Simonini 42mm
Funny to see there's alot of difference regarding rarities between countries.Over here in Holland they are called "Gilera Citta" where as in the rest of the world the type is called "Eco" or "Ec1". These mopeds where very popular and still are. You can see them driving by almost every day.Strange they are much more a rarity in our neighbouring countries and indee
Variated Clutch;- 13x19x3- 19x24x4Variated Gearbox;- 13x22x4- 20x30x5Mono Clutch;- 16x22x3Mono Gearbox;- 17x25x4- 20x30x5Almost there with your estimations.
Hey Fredzzz, nice to see you had some time (Little did you have) to make a post on your twin Cylinder Ciao. I do not remember if this ran last meeting?Engine sounds rather calm with these exausts.Going for the Bernardi Mozzi's in this build? I thought you where using them in your multiple carb. Ciao? I myself made the decision of getting some other mags or alloys. Although these plastic Berna
No need for another cylinderhead. These kits should run fine with an original one. It seems to me you suffer from any leaks. Sanding the surfaces of you cylinderdeck and head might do the trick. Also the use of an headgasket might be a solution.
Aah OK, i really thought they will ship to the US since the flag of the united states is an option to choose from on their site. Anyway i've asked them again what's the meaning of this? I can certainly shipp to the US but have to see for cheapest prices. I've send once before to Declan, but this was together with a shippment from Fredz(moparts).I will look into it and maybe it can b
Don't think it's worth the effort shipping my second hand stuff. This should be more than when JMPB would.http://www.jmpbparts.com/vespa-ciao-si/engine-parts/clutchparts.html#This might be a solution.
I've might be interested in the variated gears. 2 questions;- Do you shipp overseas?- How many teeth have all of the variated gears?