Bora Haldex S3 AMK engine K04 1.8T stage2 custom update..
After putting a few minor issues right after the engine conversion and sorting a major ignition pull at the top end on the stock map / stage1 base map. We get down to the intense logging only to fine two more issues.... during steady state testing, which on a ramp test would not have been seen.
At this stage we are only at 270bhp 250lbft
Can anyone see whats going on?
more of a clue. (with more load the pull will go to 7-9)
13.3:1 v 11.8:1 linked with rail presure drop and
We found the car to be running the stock V6 fuel pump (which should be upto the job, but running it with 160,000 miles on the clock and at 4bar has taken its toll) John has managed to get a walbro inline performance fuel pump today, just need to find time and a place to fit it in the engine bay.
Problem 2 found: Wastegate flapper not sitting shut/flush due to a slightly bent actuator mount, The flapper was making a chattering shound idel which also makes the same sound as the clutch chatter, but after holding the clutch in and pressing on the wastegate arm the chatter went and the idle air flow changed. So a few turbo pipes to be taken off to get to the actuator so we can set it correct.
Lucky customer really.. If he had a generic stage2 flash and go map I am sure it would have led to many issues, and a wasted 1752 mile round trip getting his car mapped. The end result will be John being happy with his second car being custom tuned at R-Tech and the total of drivng 2628mile to us within the last two year worth every penny and mile.
IMO if a job is worth doing its worth doing right ..... If not then not at all.
