Ok il level with you here Pete
Tbh im reluctant to say much more on this thread as its me who gets singled out on fb (im never on there) by all the idiotic twats who all claim to know everything about anything ''gtir specialist tuner included'' but infact know very little So in turn make up as much bull as possible in order to try give us a bad name! just so they get more work, and your one example of many who have been fed shite.
I see the results of their combined efforts every week from cars that have come from them and will continue to do so which is fine with me as keeps me booked solid rectifying their ''lets say schoolboy apprentice level errors'' over basic fundamentals of how a forced induction engine actually works.
But having said what ive said above
First of read what this man has written below v v v
[quote=ADSgtir] the boost pressure is just that - a pressure , this pressure creates a flow of air passing through the engine , it's the flow (volume and speed ) that helps give you the torque
Chasing maximum power numbers is a path to madness , as Bob has pointed out , torque peak and the band of torque is more important -
Of course people choose the simplest way of looking at performance - peak horsepower as its one easy to deal with number , so 450bhp MUST be better than 400 bhp , no not true
I can pick certain pieces from what others have said who are all skirting close to the answers you need as to why theres low max power and strangely high torque.......... but no one has actually hit the correct button as of yet
But hey im just an idiot wannabe who knows nothing and whos not to be trusted if you believe what you read on fb
So all im saying is LOOK at the graphs very closely
look at max boost pressure which is actually just under 2.1 bar spiking then tailing steadily to 1.65 yet torque continues to rise (weird is that) hint hint!
look at the poor afr line (very important) @4500 afr is around 11.5 which is ideally where it needs to be at given boost/rpm level of 2 bar (max power acheived here)
Strange that when it reaches 4800rpm power starts to tail off steadily whilst torque continues to rise and afrs lean off significantly to a ridiculously low nigh on 13afr between 4800-5800rpm thats just crazy for a tuner to let a car out the door given that boost and such a lean mixture especially with the high torque figure its ''supposedly running''
Torque is acheived as a result of cylinder air pressure & ignittion advance added in high load cells on the map, these figures can increase even more with poorly timed & incorrect duration cams fitted!!!!!
This coupled with the poor volume of fuel in cylinders / large air volume can only lead to one thing in future and thats
So in a nutshell Pete i can see 3 major errors here causing the above, but without doubt the biggest error was who you took it too to sort out lol
It is 99% guaranteed not to be air intake nor the intercooler you had fitted prior, that i will tell you.
I strongly suggest you take the car to someone who knows how an engine does actually work and who knows the fundamentals of how to map such an engine whilst you still have one in working order