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9 votes

Minor boost leak and shrill tone at peak boost: hose clamp, gasket or blow off valve?

It is quite likely the work performed has introduced a subtle air leak that only manifests itself under high boost. Pressurizing the intake tract with the car off will help you identify the source of ...
Zaid's user avatar
  • 39.2k
7 votes

Minor boost leak and shrill tone at peak boost: hose clamp, gasket or blow off valve?

I Believe It's a Hose Connection Point Unmetered air whether it's a negative pressure or positive pressure is bad. That being said, I find it interesting that losing some of the boost isn't ...
DucatiKiller's user avatar
  • 32.9k
3 votes

Intercooler after the engine and before the turbo

Cooling any gas down increases its density and, therefore, inside a closed pipe, its pressure decreases. Less pressure means less gas velocity. Less velocity, in turn, means less boost. With your ...
Al_'s user avatar
  • 958
2 votes

What is the liquid used in the 2014 M3 charge air cooler?

If it's anything like the BMW M4 GTS, it's water. Purely and simply water atomised into the inlet tract. This link contains more information.
Steve Matthews's user avatar
1 vote

Minor boost leak and shrill tone at peak boost: hose clamp, gasket or blow off valve?

The culprit was right here: If you look closely, I made two errors: 1. I put the clamp on at an odd angle. That was dumb because that made it hard to torque down properly. I should have had the main ...
Bob Cross's user avatar
  • 24.4k

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