Thanks for the offers guys.
Mimmc No problem , What weve tried to do is give as accurate plot as possible and give as much info as possible. eg we've quoted the ambient pressure and air temp,
also the roller speed to engine rpm (which checks out),also weve quoted BHP @wheels &
measured the loses at 12%( which also checks out with other peoples testing).
We did a few runs and that was the highest, all the others were within 8 bhp of this.
TBH I cant do any more short of you being their to watch and the rollers being calibrated in front of you. This power increase v actual power output thingy is a strange one. Let me give you an example : the Rica chip& the mth chip claim 190-195 bhp on
mcs without using a pulley Another tuner in the uk I spoke to a few months back told me '...... cooper S never gives 163 bhp standard.... its more like 180-190 on our rollers' So does this chip give an extra 30bhp or just 7bhp over standard? Who knows. To be fair IMO its probably somewhere in the middle,personally I prefer to see published the actual power output as it removes the argument as to what the car was to start with .Incidently a chip designed for a non pullied
mcs will give more bhp increase over stock than a chip added to a pullied car
as theres more headroom to advance ignition on the former. I think Adam at C/T was trying to say that just prior to being burnt at the stake a few months back. Of course pully plus chip gives better power again Regards Roland Gt Tuning
