Hello,
Located near La Rochelle, west france, I own a little Company named "MODELISME MICROMOTEUS SERVICE" since 5 years now, and I make a lot "DCi" upgrades on SAITO 60 84 & 90 Radials since several months with full success for European Customers.
The upgrade is named "DCi" for "Direct Crankcase intake" as MOKI and SEIDEL engine by machining the OEM rear intake covers.
- All the internal parts as master & slave rods, ball bearings and bottom pistons are now better lubricated and cooled
- All the 3 cylinders are feed with the same mixture and work at quite same temperature
- the crankcase temperature at full power is 30° Celcius lower than the OEM configuration.
However, I discover that the WALBRO WYD pop-off pressure is NEVER set by the Manufacturer and could be read above 36 Psi !!!!
With a correct pop-off pressure set to 15 psi those engines run much better.
More informations and photos (where you can see my guys The Cow and The Seagull) on my professional FaceBook webpage and
my YouTube channel :
https://www.youtube.com/user/eulboyington