honest acceleration, driver 190cm/100kg upright, and he should really exercise starts :D ;)
so a polini 186ccm si25 bbS is at the same level as a malossi sport 211 siproad si26. both have same inlet timings and same exhaust port with. timings pretty similiar polini cyl118/176 &crank 128/70 and sport 210 cyl 115/175 &crank 70/125, the transmission ratio of the 177 is one tooth shorter: 125=65/23, 200=65/24
speedo tolerance info:
6 at 50 and 11 at 100 too fast, typical piaggio speed tuning
funny carb setting: very rich idle 100/55=1,8, main 148 (still.too lean a bit i think) and 150/be2 with si airfilter heart removed
next acceleration vids2come: malossi sport 211 pnp advanced polinibox, malossi sport 221 bbs, otuning light 200 polinibox, lml 125 original, lml star lite 125, lml 200, vespa gts 300, vespa dr 177 pnp
the polini cyl is an old one out of the storage shelf with a new gs piston, wanted to see what the most favourite 177 cyl is capeable of :)
FMPolini 177, longstroke (186ccm), si25, bbs, kheper v3 ignition, teninch central spark plug cylinderhead, teninch honda cnc clutch, 65/23 transmission (=px200)
acceleration & rotary valve BOX tuning comparison:
125/177cc
x) 24s = 177 pnp tuning [ Ссылка ]
x) 15,8s = classic 177 tuning: [ Ссылка ]
x) 10,5s = 177 FINE tuning: [ Ссылка ]
x) 12,5s = 177 reed valve: [ Ссылка ]
x) rotary 25 vs reed valve 30mm: [ Ссылка ]
200/210cc
x) 36s = original vespa px 200: [ Ссылка ]
x) 17,5s = malossi 210 pnp tuning: [ Ссылка ]
x) 11s = malossi 210 FINE tuning: [ Ссылка ]
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