Hello, I thought I would post a realistic power graph from one of our customers spec1-custom Mk5 Gti.
Car: Golf GTI Mk5 2.0 TFSI k03
tuner/stage/settings: R-TECH Custom Spec1 dyno map
Modifications: Stock with V-power
Type of Dyno/operator: Bosch LPS eddy barke dyno
miscellaneous details: Faultless engine, Not as much PEAK torque as most tuners maps but it hold the torque band well to give a good area under the curve.
Mk5 Golf GTI 197 2.0TFSI Custom Spec1 rolling road remap session stock pwr run = 204bhp
Final results =241.96bhp@5300rpm 266.34lbft
Pre remap inspection DV fine & PCV fine....and at last a fault free engine running 100% spot on out the box.
We made three map revisions all based from our generic spec1-gen4 map, we dyno and log the car and monitor where the flat spot are on the mapping which are unique to every car, we read pages of VCDS logs to see where we can add more power ans still be in the safe area. We will repeat a few time until we are happy with the logs and the graph is a smooth at it can be. Just by custom mapping on the dyno the aim is to get rid of all the dips, the by product of making the graph smooth is extra power (not peak power) as you can see on the graph below we gained another 12lbft and 12bhp between 3000-4000rpm which has a knock on effect at the top end curve, another 5-6bhp across the whole band. These numbers dont sound much as "peak number" but stretched over the whole rpm range it make the car feel night and day on the road.
More average area uder the curve the quicker the car and this is what we aim to do to make our remap the quality they are.... not peak number or boost spikes.
A few more graphs can be found here
http://www.golfgtiforum.co.uk/index.php?topic=159756.0