stevenszack
New member
First post, iv always checked the forms when I needed a question answered but this time im at a loss. I have a 05 golf bew with a stage 2 tune. my kp39 was on its way out so I replaced it with a new vnt17 turbo just the other day and my car is gutless. The turbo hardly spools in 1,2 or 3 and then 4 & 5 it’s about 26-2800 rpm’s when you can feel it actually start to pull. I checked the actuator and it starts to move at 2-3Hg and then stops close to 18-19Hg. When I log my actual boost vs my target it takes about 4 seconds for my actual to catch up to my target in but by the time it catches your already up into the 3000 rpm range. My old kp39 that was coming apart when it would work would boost 10 times better then my “upgraded” turbo. I did check the cam today. It is showing signs of wear on 1 one and the edges chamfer if wore off the edges but is no way are they flat spotted or anything. I see cams in ar work that are just cooked and they don’t really have any noticeable performance issues and my car would pull really well right up until I put the new turbo on.
Any help would be appreciated.
Any help would be appreciated.