Originally Posted by SECS
5000 to 7800 rpm, 600 bhp peak power - yes it was low speed.
I did comment about the lack of det checking and I seem to remember he
said something like " I can tell when its detting as I know the dyno sound changes"
He may very well be right as he knows his own dyno best but it worried
the hell out of me as I was adjusting the ignition map from instructions
given by him.
I realise this may sound like a stirring post - it isnt. My point is I do think
experienced tuners may have some kind of "second sight" or intuition
when tuning.
Well it's something I have never seen before, but det cans are certainly something I would not be doing without on the road, as you have wind and tyre noise to contend with.
The only person I know who is like that is one of the guys at AVA, and he stands in front of the engine when they do a dyno running listening for det and he can apparently hear the faintest crack above the fan / engine noise, as he has attuned himself to it and can even tell when it is borderline

.