ˇˇˇYEAH I DID IT!!!
Today I went to the track to finish the tune-up and testing on my SIRIO S12 TRP EVO 2 non-turbo......and I ended up breaking the track record....yessssss!!!!!.
Well I wanted to share this experience with all the SIRIO fans, and tell you what it took to do it.
We are in summer right now, and today was about 27°C air temp, with 80% humidity
First: I set up my compresion ratio to have a total chamber of .50mm.
Second: Sirio Carb HSN 5.75 turns out, LSN 2.5 turns out.
Third: used a Nova C6SG glow plug.
Fourth: 1 tooth shorter first and second gear. This engine has it's power band at a higher point than your typical Novas.
Fifth: after trying Sirios own pipe, RB X12 outlaw, Yokomo MMielke, and NovaMega's 2182 TPO3, with this last one, set at 95mm, heaven and hell broke, the engine just started to put tremendous amount of power on low, mid and high end....and the track record fell.....Yes, Yessss!!!!
Now I know what a well tuned SIRIO can do, it's just F%&%%$$S
By the way I have a Yokomo GT4 Pro with some personal mods.
AFM