Air to Fuel ratio guage

[jwulf74]

Has anyone attempted to add an A/F ratio gauge to an RT? I see several mentions of running lean and it seems like it might be a good thing to have. I was thinking of adding the koolmetal intake and some form of 2 Brothers Exhaust and some of the posts have me a bit nervous about leaning it out too much...

 

[NancysToy]

As Roger said, it takes a bung welded into the exhaust and a wide-band A/F meter. It does no good unless you have a Power Commander or some other way to change the fuel mixture. The fuel mapping and ignition timing is set in tthe ECM and cannot be adjusted...even by the dealer. Even with a PC, your adjustments are limited.

 

[Bob Denman]

Sometimes too much informatuion can make you crazy!

 

[spyder stryder]

Air to Fuel ratio gauge

If you have a way to richen up the air fuel ratio the bung for the gauge has to be welded in the pipe at least 16" back from the head. The pipe in front of the muffler between the cat & the donut gasket should be a good place. To close to the head exhaust port will cause the gauge to bounce a lot & will not give a true reading. This is a good gauge to use MTX-L from innovatemotorsports.com. spyder stryder

 

[OldCowboy]

What A/F ratio does a stock :spyder2: run?

 

[spyder stryder]

I don't know the answer to that question. The only way to find out is if BRP will tell you or maybe Lamont might could get you close. Other than that you will have to buy the gauge & bung then install it.There is no way to make adjustments without a fuel controller. spyder stryder

 

[Frank G]

I am going into unfamiliar territory here... But would one want to measure and monitor Exhaust Gas Temperature (EGT). I fly right seat in my son's Piper Aztec that has twin 6 cylinder motors. There is on board EGT monitoring with preset alarms for each cylinder. The pilot has the complete ability to control the mixture for each engine. As one leans out the mixture the EGT rises. FYI there is a on board chart for all aircraft to assist the pilot in setting the proper mixture. I am lead to be leave that a little rich is not an issue. a little lean = high EGT and possible engine failure.

So... if you measured EGT you could tell if a setting on the fuel controller was acceptable or not. This leads to altitude adjustments.:hun:

Out of my league. :helpsmilie: