A/F on N/A sled

[nate007]

I know it sounds like a dumb question, but has anyone ever had a wideband on a naturally aspirated sled? I'm working on tuning a different kind of control box than usually used on a sled, but I thought it'd be nice to have some N/A numbers to reference to? I'd mainly like to know what they usually run at idle, but the rest ofthe range would be nice to know as well, just out of curiosity.
I'd hate to pull my blower out just to get some n/a numbers...

 

[TurboTime]

Nate,
Two ideas. 1st would be to send this question over to the yamaha tech guys in CA, second would be to post this in the Nytro or Apex forums. Someone may have an A/F installed...

 

[nate007]

10-4, thx

 

[rxrider]

I'm sure Allen Ulmer knows as he has developed airbox kits and programmed the PowerCommander boxes for the Yamaha sleds.
I'm pretty sure he used AFR meters With datalogging capabilites in the Development process.

 

[DIALIN43]

I have a 2006 apex rtx witch I run on 1/8 mile drag strip. I use a pc3 lcd display with a wideband 02 sensor.

With the display it records a/f numbers. Its all from Ulmer. It reads 12.8 to 13.0 normal. With ntrous its 10.9 to 11.00 Hope this helps

 

[nate007]

I'm more interested in what one would run at idle and part throttle cruise, which I'm guessing that you might not have been too concerned about that on the track...?