Hi everyone, Last year at the mandatory yearly inspection of my 458 (the equivalent of the MOT test in my country), the inspector on duty was a car enthusiast and a great guy, and the told me that they measured the horsepower of my car. He said the machine’s default target for the 458 was 570, mine scored 575.8. Do other 458/488 owners have put their cars on a dyno and measured horsepower? Do you have any results/stories in this regard? I was quite happy. My car, being a 2011, I thought it may have lost a couple of horsepower through the years because that’s what naturally happens, to an extent. Wasn’t expecting the 575.8 mark at all. I heard that a good break in period when the car is new may get you extra horsepower, and I’ve also heard it does not, the difference in horsepower being random within a certain degree of deviation from the norm at the factory. Any thoughts/experiences? Kindest regards, Nuno.
That is a nice result, but most probably a "computed" one - because the engine power figure cannot really be measured when the engine is in the car (if one measures the power at a rear wheel, a lot of power has been lost in the gearbox and transmission, so a "correction" is applied to come close to an engine power but the accurracy is always questionable IMHO). It could be a good indication for comparison though, if cars of the same type are benchmarked.
What was the dyno make and what kind of air/fan is blown into the intakes. The latter is hardest to simulate for the 458/488 due to the high compression ratio of the engine in order for the engine to perform optimally. Most dynos seem to underrate the HP at higher revs for this reason. Sent from my iPhone using Tapatalk
You can dyno your car one day then dyno it again the following week and see some different numbers. Dynoing a car is meant to get a stock baseline, add a mod or tune right then same day and see where there are changes in the power band
