All Things Mk5 > Mk5 General Area
K04 Conversion - Looking for opinions & posting my progress/info about the swap
ZoliWorks:
--- Quote from: OllieVRS on April 06, 2024, 02:20:01 pm ---No change in drone, sometimes it leaks some (nice) sound to the cabin under hard acceleration, but normally sounds the same. It's most noticeable from the (also nice) rasp your hear with the windows down, makes my stock exhaust only a little bit louder.
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Glad to hear, that's exactly what I want!
On my old car I had a 2.5" catback exhaust, custom made, initially with 1, then by the next day with 2 mufflers. I've also tried 3 mufflers but regardless, the drone was killing me. You couldn't hear what the person next to you was saying if you were between 2.7k and 3.5k rpm. Tthe rest of the powerband wasn't that much better either..
K03MK5:
Recently completed the build with a used k04 turbo apparently from a 66k S3. Was running fine for 2 months before the build was complete. A month down the line and the thrustmaster bearing had smashed to bits. Got it rebuilt with an uprated bearing and touchwood its been great. Am I right in thinking this was down to a poor custom tune? The mapping company suggested a brandnew turbo so got a 2nd opinion and went for the rebuild. I might be wrong but it seemed the mapping company was looking for more work. This was an expensive build and no partial refund was given. I understand it was a used turbo but I did stress it was wrking completly fine before the custom tune.
ZoliWorks:
Update on my situation. Took down the stock downpipe to take a look at the turbo. Yeah, it's bad... No wonder it was underboosting..
OllieVRS:
--- Quote from: ZoliWorks on April 16, 2024, 05:10:44 pm ---
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It's hard to see in the video, is it moving a lot?
There is always a tiny bit of play on a disconnected turbo as there's no oil in the bearings, but it should be fairly minimal.
ZoliWorks:
--- Quote from: OllieVRS on April 17, 2024, 01:16:37 am ---It's hard to see in the video, is it moving a lot?
There is always a tiny bit of play on a disconnected turbo as there's no oil in the bearings, but it should be fairly minimal.
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I've compared it with my 1.4's K02 turbo with 158k km on it. That one doesn't move whatsoever. This one moves up, down, left, right back and forth. You can hear it ticking as it hits the wall of the housing.
Right now I'm split between repairing this for $200 and using it till later when I'll get a brand new oem k04 for $1400 or getting a used k04 for $400 and using that if it's in a good enough condition.
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