Topgunz - air to air upgrade

perez519 · 10-10-2017, 10:41 PM

Quote:

Originally Posted by TBatt

Which MAP sensor are you using? The stock sensor was not designed to read pressure so it could be off. I'm using the Nissan GTR sensor that SpecialtyZ sells along with there remote tune package. My AEM boost gauge and the GTR sensor agree with each other.

When I was looking for a boost leak I made a leak tester and pressurized the system up to 8psi and both of the sensors read the same (engine not running) during the test. The leak showed up around 3psi if I remember correctly. If you have an aircompressor and a good pressure regulator I'll be glad to loan you my tester that I made.

Top, do you have any words of wisdom that you can share?

Yes I have GTR map sensors. But for some reason they still over range and the map code still came back. So I got my tuner to disable that map code.

I don't think I have a vacuum leak I've checked all the lines. I could do a vacuum test as you mention and find out.

I'm using greddy infometer touch boost sensor and gauge. It's digital and connects via OBT-2 live. The monitor can record hi peak of the boost. The weird thing is, it says I hit 9.3 psi at 7600rpm. But during dyno it only shows 7.5-7.7psi max and my tuner could see on top end the power when the car start to slip or not get anymore psi.

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