1.8T Overboosting or other issues?

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Topic: 1.8T Overboosting or other issues? (Read 27722 times)

Geomeo

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	Re: 1.8T Overboosting or other issues? « Reply #105 on: October 04, 2023, 03:54:12 PM »

Use an external wastegate. And weld the flap shut. You'll need another manifold though. It seems odd that out of all the turbo chargers in the world you are the only one that is having an over boosting issue....? How much air needs to be flowing through that flap to stop your over boosting? Because even at 12mm that looks like a lot of air. Are you sure the flap isn't just binding/geting stuck?


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Blazius

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	Re: 1.8T Overboosting or other issues? « Reply #106 on: October 05, 2023, 06:19:10 AM »

yeah... them things are cast, the best you can do with a dremel is flaring them for better airflow, trust me...

If you got a chinese turbo, first thing mark out bigger hole and take off housing and drop it off at a machine shop. Otherwise you could have issues.


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sidicer

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	Re: 1.8T Overboosting or other issues? « Reply #107 on: November 19, 2023, 03:24:19 PM »

I just wrote this post myself http://nefariousmotorsports.com/forum/index.php?topic=22382.0title= and I feel like I am facing almost the exact same issue just on Stock 1.8T with stock map ?
Could you quickly glance over and confirm because if so I think we could try to bounce back ideas what we've done already to rule out unnecessary fixes


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https://github.com/sidicer | A3 8L 1.8T 180HP Quattro

ratosluaf

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	Re: 1.8T Overboosting or other issues? « Reply #108 on: November 20, 2023, 01:25:48 AM »

Nah, there's issue with wastegate port too small, that's common on chinese turbos. On oe setup this problem does not persist.


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