prawn how much can the different sets of rollers be out though!!!
seriously 10 15 20 30 bhp ????
Surely these have to be calibrated to a certain specification
I would have thought AMD would want there's to be spot on as the dyno the AMD touring car?
I mean if there aiming for a figure an there at a competitive level surely it wouldn't be worth if the dyno is as you say "dyno happy"
I'd be interested to try a dyno at say bills then one at AMD ????
s there a possibility that it could be the other way round?
Dyno results can vary MASSIVELY from dyno to dyno mate, there's a famous dyno in the Mini scene that tends to read 20-25bhp higher than any other, and that's on 100bhp cars!
DaveB's old A3 dyno'd 254bhp at Storm and made 225 at JKM 3 weeks later.
Torque can vary even more though, my daily dyno'd 224bhp / 233lbft at Bills, then in exactly the same atmospheric conditions, it ran 216bhp / 268lbft at Regal, so that's 33lbft difference!
The dyno operator can basically get the dyno to read what he wants to, I remember seeing a chipped UK power increase claim with 2 different dyno plots, one done at about 6 degrees ambient temp with a correction factor around 1.0, one done with the dyno suggesting the temp was 62 degrees and a correction factor of about 1.25 so elevating the bhp by about 25%!
needless to say someone noticed the ambients in the small print and called him on it, and it cost him credibility
Dyno figures, unless done on the same dyno, same operator, same gear, and preferable same day or at least similar ambient temps, are totally useless to compare!