Originally posted by jag
I have an opportunity to purchase an EVO II (brand new) at a low price. I am not familiar with Sirio's .12 on-road engines. I have a .18 in my T-Maxx and like it. I have been running Nova based engines and like them but the price has me interested in this engine. How does it compare with an NSR? I hear it likes Sirio pipes but I have never seen one before. What other pipes work well?
Thanks,
jag
The Sirio S12TRP I (IFMAR spec) EvoII, should have almost the same specs and performance as the Sirio Collari LC12 PRO 3 I (IFMAR) version, which was dyno tested by RC Nitro magazine in the January issue, and here are the numbers
Peak Torque 58 oz-in
Peak Torque at 19,600 RPM
Peak HP 1.6
Peak HP at 33,700 RPM
Max RPM 41,000
This is with 20% nitro fuel!
The pipe used was a 2 piece Novarossi 51602 with 1/2" gap between the manifold and pipe.
Difference between the Sirio Evo II and the Collari, is that the Sirio is ABC and the Collari is AAC, and it has a low center gravity cooling head. Other than that they are the same engine.
AFM