Re: rolling road results of my 156 JTS
Have looked at your figures for your JTS, assume you have a 165BHP engine which on a rolling road should have losses of typically 10% and 10BHP for a FWD car. This should equate to aprox 138.5 BHP peak on the graph in the lower gears.
Looks like the 118BHP max shown is way short of that, like everyone is saying the MAF, plugs, injectors are the fave,s.
Would love to put my own 2.0TS Selespeed on the test bed, the only check on a race track! was 116MPH (GPS) at 4500RPM, do you have anything similar in 5th gear?