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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 04-24-2013, 07:17 PM   #1
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Location: Kitchener Ont Canada
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My Ride: 04Z4R VF 12PSI
Gauges Again

Hello all,
I just completed the VF supercharger install on my 04 Z4 3.0 and have purchased an analog gauge package from Speedhut as well as the gauge pod from 3D design.
My questions are
Where is the best place to tap in for the boost signal on th M54 as well as a connection for the oil temp sensor.
I have an innovate wide band sensor also and so where is the best place for it to be placed.
I understand the O2 sensor should be placed above 3 or 9 o'clock but I have found no definitive answer on where in the exhaust it should be.

Thanks for any info

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Old 04-25-2013, 09:14 AM   #2
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You can drill your existing oil filter cap..
edit: you can also tap your drain plug too, thats how I had mine done on my old 330ci..





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Last edited by MachRc; 04-25-2013 at 11:58 AM.
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Old 04-25-2013, 09:34 PM   #3
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Yea I like the billet cap idea.
Prosport has one also.

This may be a dumb question but I am new to FI....would it not make sense to take the boost signal of the charge pipe of the supercharger.You could drill a hole in the discharge pipe and put in a fitting that the sensor could screw in to directly instead of using the rubber hose.
Please educate me.
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Old 04-27-2013, 03:15 AM   #4
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Take the vac/boost signal from the intake manifold. On the rear of the manifold is a bank of vac fittings. There is usually one of these covered with a rubber cap... use that one.
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Old 04-27-2013, 06:51 AM   #5
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Thanks DS,

That is what I have read everywhere.
My reason for asking about tapping into the charge pipe is more for a cleaner look mainly, otherwise you have the sensor hanging somewhere with the vac hose attached to it.
Can anyone tell me that it is absolutely the wrong place to put the tap in?

Thanks Dave
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