drifted

guys can i ask someone a way off-topic question, it might be the best place overall..
my crazy rpm mopeds have been ripping over a year daily now. Its time to show them teasing chopper boys how we ride cafe in the city.
i've that build pending. Cold side od garret from saab onto bigbore 70cc jug ported. Ive got the hotside damaged rooke drop so why not supercharge my ped!
I need some information or ratio of pulleys to start from to get it idle. 2 strokes have those rotary rpms so breathing is a key on top of expansion chamber of 2 stroke
...mods feel free to move it or ill take it out in a few...just need that idea for startup
info needed for possible equation:
70cc
max RPM 11-14k
powerband is about 9-max(11-14)- thats when backpressure/sonic of expansion pipe(exhaust) hits back the jug -2 stroke.
turbo used as supercharger no hot side (got hot side damaged rookie mistake fall between my feet)
centrifugal clutch no trans 2 speed- max speed prediction 65-80mph
rest i think i/ve got the mill rocking full effect!

ps:turbine of garret i right about the size of the piston
It is a reed valve bottom end
ive been thinking about i tover night. i could do a flow test of my motor n/a
then grab the end of the garret into dremel and spill it to turbo operating rpm (dremel has digital rpm reference)
this way i have a 2 variables recorded- that might be a stepping stone for equation as well..

lastly this a very prototype concept and you turbo guys feel it i know so help very appreciated

drifted

i see there is no edit nor delete button, but neverless ill keep some updates to the subject after responsed on shoptalkforums.
pulley system wont work too many rpms for it to handle.
idea is to actuall turbo, but after long expansion chamber to capture both sonic/backpressure of the chamber(2stroke) as well a boos that will came delayed (long lag) due to that expansion chamber