Sirio engines thread
#2132
Joined: Aug 2003
Posts: 4,166
From: Henderson, NV
The boot is part number is 160011.
I have been telling you guys the 2d with 4 weights works really well on the STI.
I have 2 STI engines for sale. One normal STI and one Murnan modded. Both brand new. I also have one 2611 pipe/manifold set for sale. Brand new as well. Look in the 4 sale forum.
I have been telling you guys the 2d with 4 weights works really well on the STI.
I have 2 STI engines for sale. One normal STI and one Murnan modded. Both brand new. I also have one 2611 pipe/manifold set for sale. Brand new as well. Look in the 4 sale forum.
#2136
#2137
Does anybody know the size of the main bearing of a S-21 WCR?
I know it's partnumber S21-090220 but I can't find the exact size..I tried to find it but..I couldn't !
I think it's 14.2x25.3x6 but not for sure..
Thx in advance,
Mich
I know it's partnumber S21-090220 but I can't find the exact size..I tried to find it but..I couldn't !

I think it's 14.2x25.3x6 but not for sure..
Thx in advance,
Mich
#2138
Has anyone know about the new STi Evo 4? It has just arrived at my LHS yesterday. I manage to convince my LHS to take a look inside by opening the back plate. From what I saw the teardrop/turbo scoop on the crankshaft has been enlarge, i wanted to look for the liner as well but somehow the head screws was very tight,so couldnt risk stripping it. From the outside the head looks awesome with side cooler ventilation for the liner at the bottom fin as well as lots of holes protuding from the bottom to the second last upper fin. The carb restrictor/ venturi is also a bit different.
#2139
.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."
#2143



1Likes
That's why I tried the 2D clutch Scott. 