27/09/2026
Tyres! Well, semi slick tyres.
With a load bearing eddy current Dyno, such as our Dyno Dynamics Dyno tech, running sticky tyres such as racing wets, slicks are a major no no, but so are semi slicks.
The grippy tyres create losses from friction even from the first run, and some will continue to drop power with every run due to heat and the compound becoming more tacky. However this is not true for all Semi slicks. Either way it makes back to back changes harder to gauge.
We have a set of Dyno wheels we use for tuning on track based cars for this very reason. However for this Stage 1+ M2 Competition that we fitted an OPF section and tune we thought you'd just test on the Yokohama AD09 semi slicks on.
The car produced 510HP 525LBFT, which was a little low for the expected output, given how the car was logging.
A quick swap to a set of PS4S road tyres saw the power jump up to a decent 545HP with 535LBFT.
No map changes were made, this was tyres swap only. (Green to Red graph)