ECUs and Tuning Discuss Engine Management, Tuning, & Programming

Where to mount EMS? Trunk?

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Old 01-30-2011, 03:25 AM
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Default Where to mount EMS? Trunk?

I have seen the EMS mounted on the floorboard, behind the seats, and in the glovebox.

Is there any reason why the EMS can't be mounted in the trunk? Where is the cleanest install location in your opinion?
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Old 01-30-2011, 04:14 AM
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Stock location, under the plate on the passenger side. Why they hell would you mount it anywhere else?
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Old 01-30-2011, 04:45 AM
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Real ***** talk: '94-'97 location is behind the passenger seat.
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Old 01-30-2011, 05:13 AM
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Is there a reason to mount it in the trunk? You'd have to run extra wires, adding weight and additional potential failure points. You'd also be moving weight upward in the car, which is counter-productive (assuming the original spot was under the passenger's feet like it is on my 1.6), and you'd be decreasing trunk space.

I see no benefits. Just mount it in the stock location.
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Old 01-30-2011, 06:07 AM
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Not to mention you'd have to hire a midget to stuff in the trunk and operate the laptop to tune.

Or a long USB cable.
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Old 01-30-2011, 09:28 AM
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The shorter the vacuum line to the MAP, the more accurate signal you will get.
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Old 01-30-2011, 10:12 AM
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Originally Posted by jtothawhat
stock location, under the plate on the passenger side. Why they hell would you mount it anywhere else?
+1
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Old 01-30-2011, 10:41 AM
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Originally Posted by midnitehour
this is where I mounted mine

<insert blurr here>
This picture is was so useless I'm I deleting deleted it.
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Old 01-30-2011, 11:38 AM
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That explains why I only SEE it mounted elsewhere - because most people just people just put it under the dash?

And the shorter vacuum line makes sense too.
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Old 01-30-2011, 11:57 AM
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Reading comprehension fail. 1994 is behind the passenger seat, NOT under the dash.
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Old 01-30-2011, 12:04 PM
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Yep, that's me. At work on iPhone so I am scanning not reading too deeply. Thanks for your help all.
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Old 01-30-2011, 12:11 PM
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Even if the stock location for '94+ is behind the seat, I would still put it under the dash. Do you '94+ guys have any reason you prefer to keep it behind the seat? Do you not have the metal cover us '90-'93 guys have?
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Old 01-30-2011, 01:04 PM
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I have a 94 and stuck mine in the glove box. My problem was, mounting the MS in the stock location behind the seats caused problems with the lotus seats. With the seat all the way back, it would hit the MS. I just didn't like that idea at all. Now, I can also chop out about 4 feet of that thick ECU wiring harness.
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