I'd say the best way would be to just reset the ecu for your baseline, then load BD....so you're comparing power on the reset ECU to power on the reset BD tune.

Unless the ECU's timing table is super conservative, the BD tune probably isn't going to make any more power after learning. It's not like an intake or exhaust which actually changes the way the hardware is reading what the tune is thinking it's doing. All the hardware is the same, so the readings are going to be the same.

 

The place that's fairly local to me has a Mustang Dynamometer.
Here's their site.

I just need some spare time to get out there.

 

Anyone have info on an acceptable A/F ratio?

 

where are the graphs

 

12.2 is still very safe. when you get into the 14s it starts to get bad.


Im with Scott on this.... i noticed an immediate gain on the bullydog. anyone know a good dyno in Houston. (prefferably west side of town?)

I would plan on doing the Pull with the BD first, that way i have the acclimated number. i would then uninstall and reset the ECU for a baseline

I am pretty much at Sea level and i dont have an AWD so it will be a RWD number only. i should see much higher numbers than the high elevation dyno pull.

I dont know how i could have possibly lost power on this. it really woke up the car, and pulls much harder on the highway. the leaner A/F would make sense with the increased MPG.

 

I'll be getting my BD today, I have dyno time lined up Saturday. We'll see how it reacts to a 6MT.

 

Sounds great. can you install it today with 2+ timing so it has time to Acclimate first by saturday and then uninstall BD and reset the ECU for the baseline??

where are you located? curious to see what differences in elevation make

 

That's going to skew the results the wrong way. You'll be comparing a learned, "tune" to a reset, stock ECU.

To compare accurately, you'd have to compare a learned 'tune' with a learned stock ECU, or compare a reset 'tune' with a reset stock ECU.

 

Glad to see so many people with Bullydogs heading towards the dyno's as of late. The more data the better to provide more accurate information about the tune. Looking forward to see what happens with everyones results.

 

I will be following this thread, I am still incredibly curious to see what other people get as results. Just please everybody remember with dyno numbers, the only thing that matters is the difference between the two controlled runs.

 

^ any chance you have the graphs to post yet?

 

In the test that Ball.Saxbury has done,
Is that not comparing a 'learned' stock ECU to a 'reset' tune ECU?

 

I'm out of Omaha, NE. I'm going to do a baseline with the learned stock ECU tune and do 3-4 pulls with the premium & +2 degrees timing tune. The place is literally 2 minutes drive from my house, I can go back pretty much whenever if I feel I need to.

 

^you're lucky.... I wish I had access to one here as easy as that.

 

No, it probably was, which is likely why the power was lost.

It would be more accurate to see learned vs. learned or reset vs. reset.