Turbo cant reach the requestet pressure at high RPM.

May 29, 2023
4
0
Hello!
The car has an S3 front intercooler installed from darkside developments,hard pipe work kit from "creationmotorsport"
and this hybrid turbo "GT1756V" from JW automotive, and 4bar MAP sensor.
Tthe car was on a dyno, the maximum it achieved is 209hp and 437Nm. The person who tuned the car set it to 1.85bar, but at 3000 rpm the requested pressure is 1.82-1.83bar the car only achieves 1.6bar. The car is a Seat Leon 1m ARL, everything on the car is stock, except the intercooler, turbo and hardpipe kit and 4bar MAP. Can you give me some advice where to look for the problem?Poor tuning, boost leaks, poor vacuum.?Thanks!
 
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