XGC75
Go Kart Champion
I might be crazy, but I bought a blown k04 off another member here. I knew going in that it was going to be a project, but I'm always one to learn and get my hands dirty for the sake of saving a little coin. It'll be fun, and I'll come away with an in-depth understanding of the turbo installed in my car. I may even be able to go k04 for cheaper than I've seen yet on the forums!
Background
The previous owner said his timing chain tensioner gave up and his chain then skipped a couple teeth, taking his bottom end and turbo along with it. I was guessing there was probably some oil starvation going on. He got a new engine and an FSI k04 adapted to his new TSI and sold me the bad turbo with the disclaimer that it needed a new CHRA. He and his shop got a new compressor housing from CTS and shipped the turbo, compressor housing and DV relocate off to me.
The Turbo, As Shipped
I got all pieces to the turbo save for the plate to block off the old FSI PCV dump hole. Out of the box, there was heavy damage to the compressor wheel (including some missing fragments) which spun freely. The turbine wheel was seized. The compressor faceplate wasn't attached to the rest of the CHRA. It was hanging by the shaft, which was constrained somewhere in the CHRA so it couldn't be separated. Clearly the shaft snapped inside the CHRA somewhere.
Other than that, the unit looked fairly good. The manifold was predictably full of carbon, but without any gashes. The wastegate valve moves freely but doesn't have any play. Nothing wrong with the wastegate actuator. The compressor housing was new, and save for a few really light scratches on the interior it looked new.
The Plan
Well clearly this isn't ready to go into the car. I need to find out which k04 CHRA this car takes. I'm also only stage 1, so I still need a downpipe (catted and resonated preferred). The full list of requirements:
In the meantime I'll be updating this thread with research, DIY's and final pricing.
Background
The previous owner said his timing chain tensioner gave up and his chain then skipped a couple teeth, taking his bottom end and turbo along with it. I was guessing there was probably some oil starvation going on. He got a new engine and an FSI k04 adapted to his new TSI and sold me the bad turbo with the disclaimer that it needed a new CHRA. He and his shop got a new compressor housing from CTS and shipped the turbo, compressor housing and DV relocate off to me.
The Turbo, As Shipped
I got all pieces to the turbo save for the plate to block off the old FSI PCV dump hole. Out of the box, there was heavy damage to the compressor wheel (including some missing fragments) which spun freely. The turbine wheel was seized. The compressor faceplate wasn't attached to the rest of the CHRA. It was hanging by the shaft, which was constrained somewhere in the CHRA so it couldn't be separated. Clearly the shaft snapped inside the CHRA somewhere.
Other than that, the unit looked fairly good. The manifold was predictably full of carbon, but without any gashes. The wastegate valve moves freely but doesn't have any play. Nothing wrong with the wastegate actuator. The compressor housing was new, and save for a few really light scratches on the interior it looked new.
The Plan
Well clearly this isn't ready to go into the car. I need to find out which k04 CHRA this car takes. I'm also only stage 1, so I still need a downpipe (catted and resonated preferred). The full list of requirements:
- CHRA
- PCV blockoff plate
- T-bolt clamps
- Spark plugs
- R8 Coil packs
- Downpipe (CBFA+CCTA, catted and resonated)
- DP gaskets (2)
- Intake coupler (is the k04 inlet the same diameter as the k03?)
- APR Mobile for inevitable debugging
- 3-bar MAP sensor
- Tune
In the meantime I'll be updating this thread with research, DIY's and final pricing.
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