28-07-2018, 08:22 AM
You might need to adjust the waste gate arm also so the boost goes up. If the engine is the same as the 90 hp xud 9 td then you can easily push it to at least 115-120 hp. For this however you are looking into 1.3 to 1.4 bar boost. Without the waste gate holding the boost you won't make any more power no matter how much fuel you have, only black smoke.