Sirio engines thread
#2148
.12 STI Evo4:







Quote: "Now available, known as the EVO4, the latest generation of World Champion 12
size IC Sirio engine has been launched! The Sirio 12 Evo4 features a 3 ports
ABC Efra legal liner assy, a special STI type black crankshaft, also
complying to the 2007/2008 Efra rules. Using some new material on the
carburettor main needle, a new conrod, a new lightweight efficient cooling
head, the Evo4 will offer the highest performance from a 1:10 IC 200mm
Touring car, when coupled with the dedicated tuned-pipe line and the Kyosho
2D clutch set. Some new Ceramic rear bearings are available as option."

Quote: "Now available, known as the EVO4, the latest generation of World Champion 12
size IC Sirio engine has been launched! The Sirio 12 Evo4 features a 3 ports
ABC Efra legal liner assy, a special STI type black crankshaft, also
complying to the 2007/2008 Efra rules. Using some new material on the
carburettor main needle, a new conrod, a new lightweight efficient cooling
head, the Evo4 will offer the highest performance from a 1:10 IC 200mm
Touring car, when coupled with the dedicated tuned-pipe line and the Kyosho
2D clutch set. Some new Ceramic rear bearings are available as option."
#2149
.12 STI Evo4:







Quote: "Now available, known as the EVO4, the latest generation of World Champion 12
size IC Sirio engine has been launched! The Sirio 12 Evo4 features a 3 ports
ABC Efra legal liner assy, a special STI type black crankshaft, also
complying to the 2007/2008 Efra rules. Using some new material on the
carburettor main needle, a new conrod, a new lightweight efficient cooling
head, the Evo4 will offer the highest performance from a 1:10 IC 200mm
Touring car, when coupled with the dedicated tuned-pipe line and the Kyosho
2D clutch set. Some new Ceramic rear bearings are available as option."

Quote: "Now available, known as the EVO4, the latest generation of World Champion 12
size IC Sirio engine has been launched! The Sirio 12 Evo4 features a 3 ports
ABC Efra legal liner assy, a special STI type black crankshaft, also
complying to the 2007/2008 Efra rules. Using some new material on the
carburettor main needle, a new conrod, a new lightweight efficient cooling
head, the Evo4 will offer the highest performance from a 1:10 IC 200mm
Touring car, when coupled with the dedicated tuned-pipe line and the Kyosho
2D clutch set. Some new Ceramic rear bearings are available as option."
#2151
The clutch bell has been around for a while & it does not look like the serpent the flyweights is nothing new that type has been around for years with other manaufacturers so post a pic of the serpent system so everyone can compare that have similiarity's but are not an exact copy
#2153
Bottom line is the bell is not an exact copy & no need to get so defensive I ran the impulse,710, tested the 720 as well so I do know the product as well
#2154
By the way it is also an exact copy of the MUGEN HO780 Clutch system, EXCEPT for the BELL.
#2157
#2158
#2160



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