Hi stage tuning freaks! here is a new thread about what german people call o-tuning: standard top end, crank, ignition and lots of appaloosas right out of it.....
PX standard barrel is a crap, 9,5 hp out of the box, seize and pinging all the time: a tuner nightmare....
Olivier, main moderator of scootentole (bigger french vespa-lambretta forum) told me: hey FF Why don't you do me a mild tuning with a bit of extra power and revs? No need to ask twice Frog to get ready with his cutting tools....
The project is:
E:175°
T:120°
I: 178° with 123°(btdc)-55° light flowing. overlap:3°
Lets start by inlet: 123°-55°
Sip road, SI24 E or G, lightened flywheel.
Engine is a motovespa (motoplat ignition) PX200 seized but in a relatively good state:
piston before its one way ticket to the bin:
barrel needs a reboring or a change:
inlet in progress:
an old barrel of mine in a better state: everything is small, badly build and rough...
let's begin the moviluty cure:
after a few in-out in-out:
boost port:
almost finished:
next step: exhaust and crank....
O-tuning Olivier's px200
spot on
live life your a long time dead
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Yep I can see where your going with it..
Ralph saxleby use to do a standard p200 setup BUT TUNED of course and would guarantee 80mph +
oh an I think he used a leovinci pipe too but everything else as piaggio intended
There was a girl in the local club who had one done and it was pretty damn quick....
Ralph saxleby use to do a standard p200 setup BUT TUNED of course and would guarantee 80mph +
oh an I think he used a leovinci pipe too but everything else as piaggio intended
There was a girl in the local club who had one done and it was pretty damn quick....
- fastfrog
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- Main scooter: T5 mk1, SS180, PX200 millenium
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I'll take my previous o-tuning GS piston. ready to fit and still in a good shape.
inlet timing with its motovespa crank is quite unusual:
105° btdc/75° btdc 180° but shifted to the retard: Don't like this at all: too much blow-back and unecessary timing for an engine that won't rev beyond 8000....
timing with a std italian crank:
117°/53°
pics of my own o-tunig 200 posted in the "welcome" section some times ago: This is a more tuned engine with bigger ports and timing:
inlet timing with its motovespa crank is quite unusual:
105° btdc/75° btdc 180° but shifted to the retard: Don't like this at all: too much blow-back and unecessary timing for an engine that won't rev beyond 8000....
timing with a std italian crank:
117°/53°
pics of my own o-tunig 200 posted in the "welcome" section some times ago: This is a more tuned engine with bigger ports and timing:
Size matters!
wish my dentist had your skills
live life your a long time dead
- sean brady scooters
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loving those crank mods ,nice work
Sean Brady Scooters - 01765 690 698