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By joshuaho96 · Posted
For all the talk of "these parts are junk" I generally recommend OEM because it's really not as bad as claimed. I have never seen or heard of a case like the N63 where the oil returns completely clog with coked oil for example in ~10 years or less. Would it be nice if it were a straighter path? I guess, but most modern cars use a scavenge pump instead of a pure gravity return. Also the factory lines that would be relatively simple to convert to braided are generally speaking hardlines from the factory. I would consider braided line to be a regression, not an improvement. It's also been engineered such that all the hardlines have appropriate strain relief where needed. There's absolutely room for improvement, for example the HKS advantage heritage intake piping shows just how much can be done to make the turbos fight each other less in OEM twin turbo configuration and reduce compressor surge but it's rarely a simple/straightforward process. I recommend looking at what the group A/N1 cars did, generally speaking the changes they made were necessary and proven in endurance racing. -
Yes, multi relays needed, and possibly a diode. I'm not actually going to think about it though. -
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So I'm confident in saying its TCS thing. My new cluster I never realized didn't even have bulbs in the TCS or Slip slots. Shining a light through the backside that black plate has nothing for it, unlike my original cluster. Looking at the service manual the only thing that stands out is TCS in relation to the vehicle speed, it has nothing to do with turbos. It sadly looks like I may just need to get the appropriate cluster.
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