skimau
New member
Anybody use oxygen sensor to watch her exhaust temperature.
And where can find kit of oxygen sensor for a triple cyl ?
And where can find kit of oxygen sensor for a triple cyl ?
03viperguy
Moderator
you are looking for an EGT setup, oxygen sensor tells you an air fuel ratio. koso makes decent setups, digitron does as well. no experience with either
skimau
New member
yes it,s what I search a Egt setup but I don't find a screen for 3 cyl
03viperguy
Moderator
third one down on the page
http://www.hiperf.com/acatalog/Digatron_Gauges.html
http://www.hiperf.com/acatalog/Digatron_Gauges.html
skimau
New member
if I check the good one is for 2 egt and 1 tach? but I need 3 egt
03viperguy
Moderator
oh yeah, I guess you want the first one on the page. says you can get it as a tach, 2 egt, and water, or you can get tach and 3 egt. not cheap though at $524!!
skimau
New member
Haha ,
I check a avenger 3 on ebay for 200 box with the probe but I didn't find replacement probe on the net .... I think racepak stop to made it ? Can I utilize another brand of probe ?
I check a avenger 3 on ebay for 200 box with the probe but I didn't find replacement probe on the net .... I think racepak stop to made it ? Can I utilize another brand of probe ?
03viperguy
Moderator
I personally have NO idea lo!
skimau
New member
I think it's a good tool to help on jetting and a a good protection to save the motor when you race but nobody use it on srx
madzx2
Member
skimau said:
you could try exhaust gas technologies for probes.
A narrowband o2 sensor is basically a binary lambda sensor, or simply it reads a 1 or a 0 depending on whether there's a lean condition or a rich condition. That's a little bit of a simplification, but fairly accurate (its output in mV changes dramatically around stoichiometry, so it appears as a binary output, on or off).
You'll want a wideband o2 sensor that reads air-fuel ratio. I don't know much about snowmobiling tuning, but in automobiles, they shoot for 14.7:1 at 0-85% throttle and run 12-13:1 at WOT for best power. The output is a little rich, but that ensure best torque because every air molecule pumped into the motor is utilized (o2/air being the limiting agent) and the extra fuel cools the combustion chamber enough to run a little closer to maximum brake torque timing (MBT timing) without encountering knock.
If this is really interesting to you, check out Greg Banish's book Engine Management - Advanced tuning. Its mostly for cars, but a lot of the concepts cross over
You'll want a wideband o2 sensor that reads air-fuel ratio. I don't know much about snowmobiling tuning, but in automobiles, they shoot for 14.7:1 at 0-85% throttle and run 12-13:1 at WOT for best power. The output is a little rich, but that ensure best torque because every air molecule pumped into the motor is utilized (o2/air being the limiting agent) and the extra fuel cools the combustion chamber enough to run a little closer to maximum brake torque timing (MBT timing) without encountering knock.
If this is really interesting to you, check out Greg Banish's book Engine Management - Advanced tuning. Its mostly for cars, but a lot of the concepts cross over
i know edlebrock makes one as i have been using one to tune my xt350. good idea for keeping and eye on things as a whole to prevent a lean burndown.