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Custom mapping (dyno) done on the Golf by Unicorn Motor Developments in Stoke.
Car was running an email style map (stage 1) when I got it and with the scorpion catted downpipe, TT inlet hose the car made a baseline run of 340HP / 390lb
I asked Rick the tuner for following from the car:
- Remove deadspot from the go pedal
- More aggressive throttle mapping in all modes
- NO pops and bangs
- ECO mode to be running stock VW map with stock boost, just modified for the hardware changes which don't really effect running, ideal for motorway cruises as it will return around 40mpg
- Race mode to be all out
- Make the torque curve flatter, so the car does not feel as flat up top.
The results as above, just from the custom mapping, a good 30-40HP gain after 5000rpm and gains beginning from 3500rpm.
Too drive its an improvement for sure, its smoother and now the car is enjoyable to rev out, before it felt a little too manic around 3000rpm, which meant the car felt really flat beyond 4000rpm and doing a kickdown at say 70mph the car picked up but was a little flat. Now doing a kick down and it feels absolutely bonkers and just flies off down the road, the power in the top-end is night and day improvement. Also the MPG now seems greatly improved when driving it hard which is also a bonus.
Below is a quick LC run, launch control is now so easy and feels so gentle on the car. I also noticed my front wheels spinning at Pod on Sunday, was told to check the Haldex filter (none service item) and it was as expected gunked up, so all cleaned and now as you can see in below video the car just hooks up with just a chirp of the wheels and no bogging.
I ran a 12.2@116mph without LC at the Pod before this custom mapping.
Rick the tuner, who runs a stage 1 on his car which made 359/360 on same dyno said his runs 11.7@118mph with LC at Pod. He says a none LC run should now net me around an 11.9@120mph and an LC run will be around 11.5s in the quarter mile and around 120mph terminal. It feels silly quick and I've never owned a car that was so fast for so little horsepower, its uncanny how quick this thing is.