Scooterotica

nice work ,love the crank mods

done with lots of love and sweat....
Crank in place:

barrel rebored and back home.
my test assembly without base gasket gives a very low timing as if MB piston crown height was higher than a standard piston ( ad says no....)

T:108°
E:140°
BD: 16°!!
A pity!!
race-base (http://www.race-base.com)says:
3,2mm packer and 6,6mm to be removed at the exhaust top to get 125/180°

I'm now waiting for a pipe-design silent box to come. Marco Rentzman, the boss, knows how to turn a standard pipe into a civilized expansion. I need the dedicated flange to port the exhaust.

Transfers are finished:







piston could look like this:

The Piston does not look happy

never smile facing the scaffold!

piston operation in progress:

piston ported:

at BDC:

at mid range to the TDC:

from the inside (I like this one!)

Interesting thread.

How do you think it will compare to this in terms of power output?

http://www.lambretta-images.com/archive ... tta-p2.php

thank mate,
concerning the lambretta-archive thread (one of my favorites) I'm a bit puzzled with the output power gained with this only 2transfert/piston ported engine.... I'll have a dyno asa running in finished....