[VF-Engineering]

Originally Posted by zenmaster

Not following this. The M2 makes 335 whp completely stock on 98ron.

It's not possible to make a blanket statement like that.
Different dynamometers produce different results; Every vehicle will
vary slightly depending on the mileage/break-in/fuel quality; Even the
same car, on the same day/dyno, can vary from session to session.

Of the last 1/2 dozen M2's we've had on our in-house DynoJet we have
seen anywhere from 320-335whp in stock form. If we put that exact car,
on the same day, with the same fuel on our in-house Mustang dyno, the
same car that just produced 330 WHP will only produce 287 WHP.
"Reference Post" ← (click link to jump)

This is why the conversation needs to revolve around the delta, and not
fixate on a target peak number.