Hey Dan,

So how much did you get your wideband for? Is it any good?

I bought the innovate motorsports LC-1, and it is fine for someone running NA that owns the tactrix cable. there are better options, but none you can get for less than 200$. I paid about 180 to have mine shipped to me. It will not log AFR to RPM without an additional cable/controller. This is necessary for fine tuning the car, you can get a very good map without logging to RPM though. If you are going turbo you will need additional sensors and datalogging capability.


Over the week I'll be asking you questions about tuning with a wideband, would you mind answering them?

Post in the threads I linked below so everyone can input/learn from our discussions. It will be more helpful in the long run.


Also, with tuning, does it all become easy later on, like when you started was it difficult? Did you have any help?

I didn't have any help, and in the beginning it is difficult to understand. Once you see how everything works and put that together with your research it becomes easier. when it all makes sense in your head is when it becomes very easy, it took me a little while to get to this point.

I really want to get into it so I can just tune it from my end and then take it to a dyno to see the result.

Like, how do you know whats the best optimum power to tune it at, like whats the best rpm to kick in more fuel, certain time etc...

Is there like a certain figure were suppose to go after? I seen somewhere where you wrote something about the air ratio needs to be like 21 or something or 14, not too sure on the number.

you are always tuning for an optimum AFR, because that AFR is where the car will produce the most power. For NA you should shoot for the low to mid 13's (13.2 to 13.5.) the closer to 13.3 the better. these numbers are for wide open throttle only, that's the only thing the piggyback tunes because it is using a lookup map instead of the narrowband o2 sensor readings.

Can you direct me to some of your threads regarding wideband tuning please.

So from my understanding you hook the wideband to your o2 sensor and the cable from your wideband goes into your laptop where there is a software which reads the air/fuel ratios..? Also, do you step on the gas to get a reading? How do you know whats good?

A wideband is actually a term we use to describe a whole system. The wideband UEGO sensor is one part, the datalogger is another part, the software and cable to hook your laptor to the datalogger is the third part. Depending on the brand you can also plot against other values, such as the engine RPM which is pretty critical for fine tuning. It will read the AFR constantly, but the only AFR you can tune for is what you get under wide open throttle, and what is good is not having the car too rich or too lean for your application.



ARGH, so many questions...