What settings for the Sirio TX .18???

[bhwilder]

Hey Guys,
My Sirio is running pretty good in my T-maxx, temp runs where I want it to on any given day 200 - 250, original stock 2.5 pipe drilled,
McCoy #7,#9 plugs, Trininty Monster Hp fuel - 20%, Motor saver air filter, an aluminum 3 piece clutch (tried the stock 2.5 and the MIP) and It's tuned pretty decent (not the best, but close) and I haven't seen all these "Willies on Demand, Whenever I want, On whatever terrain, etc. etc..., that all the other Sirio .18 owners say they have and was wondering what you're HSN and LSN are set on so that I might try them??
I have no airleaks (sealed the backplate, ez start and the carb) no probs there just thought I'd mention that.
Don't get me wrong, It's got alot of top end, but the bottom end is not what I would think it should be.
I've got a Big Bore Pipe coming and would that give me the bottom end power that's been talked about???
I would think it's just a matter of finding the right tune on the carb.
I have a gallon and a half throurh it too!!
What do you guys think???

 

[militarymaxx]

No mention of what gearing you are using. The temps you mentioned are on different ends of the scale. 200 is cool/rich and 250 is closer to the hot side (if 270 is your max). 50 degrees of temp change is too broad of a range to properly determine the tuning of you engine. Assuming that 250 is your max temp after things have warmed up and you been running for a while, and you can't get those wheelies I would look at you LSN setting. LSN is most notable just off of idle. From sitting still, punch the throttle.
You should get a little smoke and off she goes. I break it down into 3 stages. IDLE - JUST OFF IDLE - EVERYTHING ELSE.
Just off idle is where I play with my LSN. Keep in mind that all three of these adjustments interact with each other. Think of the HSN as the valve on a hose and the LSN as the nozzle at the end of that hose. Whatever you do to the valve will directly affect the nozzle. But regardless of what you do with adjusting the nozzle won't have any affect on the valve. If things get messed up always go back to the factory settings which are usually on the rich side, and go from there. I have a friend with a sirio .18 in a maxx and that thing is stupid fast. He had me fooled. I thought it was some .21 or bigger. Be patient and it will come to you.

 

[akmadmaxx]

The BB pipe sould help. Also i re-geared mine to a 18 tooth cb with stock 72 tooth sized sg. Gave me more low-end and lost a little overall speed but not too bad.