Trick Flow small block heads
This is super interesting. I feel like I'm learning stuff. I'll get back there and see if I can actually input data.
When you go over there, ask him to show you what the current baro pressure is in the dyno room.
If it’s anything close to 30”...... you have your answer.
It’s pretty simple really........ there’s going to be 20-25% correction for that dyno shop(for SAE J607), depending on the day.
For example, at that location...... even on what would be considered a “good day”......25.15 baro, 65*, 10% humidity........ the correction factor is still 20%(500hp uncorrected = 600hp corrected).
If he’s coming up with corrected numbers that are in the 3-10% range....... they’re wrong.
Likely because the correction inputs are wrong.
That would be a classic case of GIGO.
Corrections in the 3-7% are what we typically see here on an average day....... and this dyno is only at about 400’ elevation.
