auto-tune feature questions

[jbbauer]

Noob tuning question on the auto tuning.

So if I get the ROMulator, wideband O2 sensor etc. do I need to have some pretty good base maps in prior to auto-tuning? ie. if I auto tune is there anything I need to pre-tune and is there anything I'll need to post-tune?

When auto tuning do you independently auto-tune for WOT, idling, and partial throttle.

[lcopas]

[jbbauer]

Not sure what the Emoticon meant, maybe I was not clear.

Prior to beginning to use the auto-tune feature
http://www.hondata.com/featuresautotune.html
Does it matter how bad my starting base map is? ie. do I need to start with a base map that is close to ideal.

After tuning with the auto-tune feature across all RPMs are there other things I'll have to manually tune such as the spark retard/advance or is there a way of tuning this as well?

[AndyE]

The maps need to be good enough for the engine to run, but that's about the only true prerequisite. If your maps are way out of whack, it will obviously take a bit longer to properly autotune.

The autotune feature only adjusts the fuel maps, not the timing maps. Tuning the timing is less of a black-and-white issue than fuel--at a given RPM/MAP value, you can adjust the fuel to achieve a certain A/F ratio, but for timing, you're typically aiming for maximum torque with minimum cylinder pressure (throw EGT into the mix if you want to get fancy). That's why tuning the timing is best done on a dyno where you can measure the effects.

-Andy

[jbbauer]

Thanks, I'm a newbee to all this but I'm thinking of tuning on my own the first time. I'm getting a wideband O2 and EGT sensor.

Could I use Hondata's G-sensor in place of renting a dyno everytime I'm tuning? This would allow me to take my time with tuning my vehicle instead of watching the clock as I'm renting a dyno, plus I wouldn't have to worry about scheduling dyno time.

[turbosi92]

Thanks, I'm a newbee to all this but I'm thinking of tuning on my own the first time. I'm getting a wideband O2 and EGT sensor.

Could I use Hondata's G-sensor in place of renting a dyno everytime I'm tuning? This would allow me to take my time with tuning my vehicle instead of watching the clock as I'm renting a dyno, plus I wouldn't have to worry about scheduling dyno time.

I do all of my tuning on the street. This gives the best drivability because it gives real world conditions. To get the most power, I dyno but for the drivability, I tune on the street with a wideband.

To me, the autotune feature is useless because it ends up creating major sawtooths in the map. Something you don't want to happend. My $.02.

[jbbauer]

Thanks, I'm a newbee to all this but I'm thinking of tuning on my own the first time. I'm getting a wideband O2 and EGT sensor.

Could I use Hondata's G-sensor in place of renting a dyno everytime I'm tuning? This would allow me to take my time with tuning my vehicle instead of watching the clock as I'm renting a dyno, plus I wouldn't have to worry about scheduling dyno time.

I do all of my tuning on the street. This gives the best drivability because it gives real world conditions. To get the most power, I dyno but for the drivability, I tune on the street with a wideband.

To me, the autotune feature is useless because it ends up creating major sawtooths in the map. Something you don't want to happend. My $.02.

Thanks this the direction I was thinking of going as well, except, I'd prefer to use the "g-sensor" hondata feature instead of going to a dyno inorder to tune for timing. Is this possible?

[jbbauer]

you can adjust the fuel to achieve a certain A/F ratio, but for timing, you're typically aiming for maximum torque with minimum cylinder pressure (throw EGT into the mix if you want to get fancy).
-Andy

How are you measuring cylinder pressure? Is that something that can be done while driving?

[turbosi92]

Thanks, I'm a newbee to all this but I'm thinking of tuning on my own the first time. I'm getting a wideband O2 and EGT sensor.

Could I use Hondata's G-sensor in place of renting a dyno everytime I'm tuning? This would allow me to take my time with tuning my vehicle instead of watching the clock as I'm renting a dyno, plus I wouldn't have to worry about scheduling dyno time.

I do all of my tuning on the street. This gives the best drivability because it gives real world conditions. To get the most power, I dyno but for the drivability, I tune on the street with a wideband.

To me, the autotune feature is useless because it ends up creating major sawtooths in the map. Something you don't want to happend. My $.02.

Thanks this the direction I was thinking of going as well, except, I'd prefer to use the "g-sensor" hondata feature instead of going to a dyno inorder to tune for timing. Is this possible?

I have the G sensor and can't get it to work like I think it should yet. Still playing with it. Theoretically, you could use it like you are wanting though.

[jbbauer]

THANKS, turbosi92, let me know if you are sucessfull at getting this to work. I'm thinking of going this direction, so I really appreciate the heads-up.