#1
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BMW Early N55 HFS4 v3.1 installation (unfinished)
Hi Richard,
I've emailed you about step two of the installation and haven't heard from you since Recall: I purchased a new HFS4 v3.1 kit from you, you emailed me the step 1, which is moving those jumper to x2.5 IDC pre scaler. Been emailing you about step 2, which I assume is cutting 3 and jump 2 for MAP sensor(cut 3.5 bar, connect 2.5 bar)? I have a 2011 335i N55 btw... Joey |
#2
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Joey,
I just checked all my in boxes, no email form you, if the email address begins with joey.... Can you pm me the date or your email address, I have to make sure it is not arrested by the spam filter. I always answer my emails within a few days.
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Richard L aquamist technical support |
#3
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Send you an email via the forum.
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#4
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
got it this time, I will reply.
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Richard L aquamist technical support |
#5
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Still haven't got your reply.... I assume you lost me again.
Why don't we talk here? Step one is to set the IDC jumper to x2.5. Whats next step? |
#6
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
I will talk here from now and stop emailing me.
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Richard L aquamist technical support |
#7
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
OK, lets start from the beginning so we can do it properly:
1. the power? 2. Tuning box or standard?
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Richard L aquamist technical support |
#8
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Quote:
2. Max boost 21 psi (factory 2.5 bar MAP sensor) across the mid range (3000 to 5000 or less), trying to raise it at the redline so I get more "HP" instead of high torque only. still tuning it 3. Tuning box or standard? I'm using Cobb ATR |
#9
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Here is diagram for the HFS4-v3.1. Please check beofere moving on.
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Richard L aquamist technical support |
#10
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Re: BMW Early N55 HFS4 v3.1 installation (unfinished)
Yup this is the sheet we used for installation.
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