On a Lighter Note! A Way to Monitor Air/Fuel Mixture

[twintips_17]

Originally Posted by Dfishrmn

Is there a way to monitor the air/fuel mixture as a percentage? Maybe in the records area, would fuel and mass air flow monitors give a number that could be calculated? I admit I haven't researched all the record options available but this just occurred to me it may be helpful. I have read in other forums that a ratio of 14:1 is ideal. Is this a stock mixture and our canned/custom tunes are different? I have the same modified stock intake that Jack has and am wondering what the mixture may be and if we are hitting the target area. Just some random thoughts!

It all depends on where in the throttle you are. If you are all the way into her, then it mixture will actually go down a bit? I can’t remember the numbers I have seen posted, but it’s almost down to 11:1 at WOT.

I could be wrong about the number but it’s something like that.

14:1 is what I understand as the effect ratio for effect burning and fuel mileage. Not for power. That would be to lean for max HP or torque.

[Dfishrmn]

Originally Posted by twintips_17

It all depends on where in the throttle you are. If you are all the way into her, then it mixture will actually go down a bit? I can’t remember the numbers I have seen posted, but it’s almost down to 11:1 at WOT.

I could be wrong about the number but it’s something like that.

14:1 is what I understand as the effect ratio for effect burning and fuel mileage. Not for power. That would be to lean for max HP or torque.

Good info! That's why I was wondering if there is a way to monitor it.

[Chris74]

Originally Posted by twintips_17

It all depends on where in the throttle you are. If you are all the way into her, then it mixture will actually go down a bit? I can’t remember the numbers I have seen posted, but it’s almost down to 11:1 at WOT.

I could be wrong about the number but it’s something like that.

14:1 is what I understand as the effect ratio for effect burning and fuel mileage. Not for power. That would be to lean for max HP or torque.

^^all depends on the tune........ I believe 14:64.1 is stoich. At WOT somewhere around that 12:0.1 range is nice! I believe 11:8.1 is close to where optimum TQ is achieved and 12:6.1 is optimum for peak HP......I assume this varies slightly from truck to truck / tune to tune though.

Good info! That's why I was wondering if there is a way to monitor it.

I don't know of a way to monitor it like what you want but here is another way to measure it besides taking it to a dyno....
http://www.wbo2.com/

[jimmyv13]

Originally Posted by Chris74

^^all depends on the tune........ I believe 14:64.1 is stoich. At WOT somewhere around that 12:0.1 range is nice! I believe 11:8.1 is close to where optimum TQ is achieved and 12:6.1 is optimum for peak HP......I assume this varies slightly from truck to truck / tune to tune though.




I don't know of a way to monitor it like what you want but here is another way to measure it besides taking it to a dyno....
http://www.wbo2.com/

wb02.com or Techedge is a great company, I've been using their monitors for years with great results. I've been involved with tuning cars since high school and have used a few different wideband setups...some are good and some are not. Techedge is phenomenal...the best IMO. They give you the option of even building one of their units for those that are inclined enough to do so and want to save a little coin.