Unfortunately, ET's all depend on the driver, the chassis, the weather, the traction, etc. There are as many variables with drag racing as there are with engine dynos.
The best solution overall would be for a hand-full of guys to use the same dyno in one day. However, it's a severe pain in the hindend to take a day or two off from a work schedule, pack up, and drive multiple hours both ways to accomplish that. I think Barry's dyno may be the tightest of the ones that I see. Maybe we should all dyno an engine at our home location, then meet at Barry's for a thrashing session.
I will guarantee you this: not all dynos are the same and I'm not even discounting the fact that the one I use on a regular basis can be 5% happy sometimes. I seem to have similar horsepower to the others, but my torque numbers are a little higher.
It used to be pretty rock solid in my eyes until the guys from DataMite came in and moved the weather station location when they did an upgrade. Now, I think it picks up a little too much header heat. To account for this, for the past year or so, when I post dyno results, I have been posting weather conditions, uncorrected numbers, and the correction factor. Barry has been doing this as well, it may have even been his idea. It allows for transparency and a common ground for comparison. It's not all about "calibration", but I think the biggest factor is where the computer is pulling weather data from.
Getting back to my idea....maybe we need our own FE EMC? Or at least a dyno bash day.
