XRAY - Model racing cars

I have sirio kanai 2 and i drive only 2 liter runner time top 25 and conecting rod was broked. I brake in this engine abaut 1.9 liters fuel.
And now is my quastion with enging now buy sirio kanai 1 or 2 ??

RB WS7 II in my opinion...I run RB's across the board - 1/10th touring, 1/8th circuit and 1/8th off road - always found them ultra reliable and very competitive....not denegrating other brands though as have not tried many of them....

I dont like RB. Some off my friend have RB and he fast sell ws7 2. ow i buy only sirioand what do you thing with are better k1 or 2

The Sirio Kanai 1 and Kanai 2 are just about Identical. The only difference is the seal on the carb and case and the the ports have been fine tuned. Otherwise there the same engine.

I would have to say the Kanai 2 is better becuase the carbs dont leak at the seal. The Kanai ones had a bad problem with air leaks at the base of the carb becuase of only having 1 seal. Now the engine has 2 seals. Hope that helps. Otherwise its a good engine, maybe it was a problem with the way you broke it in why the rod broke ? just a possiblity. I ran one last year and there quite powerful, they just dont last long, kinda like the O.S. engine.

my solution to long rod life is to always preheat the engine to at least 180 degrees as long as it has any pinch cold. it takes a long time to break it in but youll love the results.

Thx for all. Now i know with engine buy thx giorgi