A couple days ago I was able to take a small break and hop on the dyno with an ST, in AZ.
What's super cool about this was this car was stock, and running 91ACN fuel (equivalent to 89oct in other states). ACN stands for Arizona, California, Nevada. The fuel in these 3 states (along with Utah, sometimes!) is much lower quality, and has been for roughly 20yrs.
2023 Explorer ST
COBB Accessport
91ACN Fuel
STOCK Car
Uncorrected
438whp
479wtq
If this car was running 93oct it would absolutely be in the 450 to 460 range.
This is roughly what I made on my own ST, a year ago, day 1 tuning these cars. Mine was also stock at the time (can watch that vlog here:
)
What's interesting is how accurate the dynojet dyno's are as it handles Correction Factor/environment. Which is why I LOVE them, and own one. My car below was in NM in January. Car above is March summer in 100* AZ (we don't have spring in AZ lol).
Consistent results, every time.
