Dyno again. F5air.

[ChinoCharles]

Originally Posted by YarisGuy

There are a few things to keep in mind when dyno testing.

1. Before and after dynos should be done on the same day to keep the weather and humidity in check. Doing a dyno today and then going back in a couple weeks will change these conditions and can lead to inacurrate readings.

2. How does your area under the curve look? You should plot the before and after lines on the same page to look at the area under the curve. Peak numbers are over rated and don't mean as much as the behavior of the power and torque curve.

3. Did you use the same dyno? Was this dyno recalibrated or were the settings changed in any way during the two weeks that you were away? These can also change the readings.

4. etc. etc. etc.


.

Almost all dynos will automatically correct results based on weather conditions to ensure that results are accurate despite being taken on different days. You are right, though... the area under the curve will tell you if you have a faster car or not.

[staticorex]

All valid points Yarisguy. I realize the difference of hum/temp will affect it. Same dyno, wasn't modified. about 10 degrees cooler that day. I'll get the new one scanned in a bit.

UP THERE. :)

[reznunt]

Originally Posted by ChinoCharles

Almost all dynos will automatically correct results based on weather conditions to ensure that results are accurate despite being taken on different days. You are right, though... the area under the curve will tell you if you have a faster car or not.

i'd still rather do a run, install the intake, and run it again twenty minutes later than do it a week later and rely on computer corrections. not saying it would be inaccurate data, but it just eliminates another variable. it's good practice.

[staticorex]

Also though the ECU has to have time to adjust. Just slapping it on just makes it run leaner until it corrects.