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New-ish 911SC Targa Owner
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CANbus gauge- Why haven't I taken advantage?
My 3 year old AEM infinity 506 ecu has a CANbus output (which I think consists of two wires total). This means that another device can connect to those two wires and in turn receive data from dozens of channels - AFR, IAT, CHT, Boost pressure, Fuel Press, Oil Pressure, MAP, Flex fuel content %, RPm, Knock Feedback, etc. etc.
I've found a couple of gauges that claim to work with my ECU's CANbus to display these items. AEM's X-series gauge, and BTI's Can Bud gauge The price for AEM's is hard to beat but the BTI gauge looks better and is available in 60mm. I'd like to eventually get one and put it where the clock is currently. Don't have much use for a clock that looses 10 minutes every 12 hours anyway.... Anyone have experience with these two gauges or something similar?
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'83 Targa 300k w/ freshened 3.0 with 930/52 case# 6770540 ARP and Raceware hardware - AEM Infinity 506, Triumph T595 ITBs, B&B headers, Dynomax muff, Fidanza FW, Alum PP-203whp |
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07-23-2019, 01:28 PM
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Registered
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Also take a look at perfecttuning.net. There is a version of this gauge for AEM. I have installed this gauge with my MS3 EFI conversion. There is a thread in the Turbo forum showing installing using a clock or gauge case.
 Up to four functions can be displayed, or only one for a large visual display.
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-Dennis 1977 930 Slant, MS3 EFI, Carrera intake, Twin plug, Powerhaus headers, Magnaflow muffler, Garretson intercooler, GTX3071R |
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07-23-2019, 02:06 PM
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New-ish 911SC Targa Owner
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Oh, that one is cool too with the best display yet! I wish they would make one where the whole round face was usable screen. Glad to know there are options!
Last edited by pampadori; 07-23-2019 at 06:47 PM.. |
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07-23-2019, 06:01 PM
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Registered
Join Date: Apr 2008
Location: Miami
Posts: 963
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Using the AEM bus is very possible. I am building a custom gage to replace the clock. Its difficult to fill all of the space because there are awfully few round lcd screens that are big enough. I am using a 3.2 in rectangular display because I can’t fit a bigger size behind the clock gage hole. It covers most of the hole.
As part of the project, not only can I read AEM data, but I have successfully injected my own data to be logged by the AEM. There may be a write up in the future. Here is a test image.  All of the acceleration and rotation rates are injected into the canbus.  **images not showing. Will have to upload when I’m on a computer and not on the phone.
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1979 SC, Slant nose wide-body cab conversion. AEM Infinity EFI, COP, supercharged! Last edited by Dr J; 07-23-2019 at 06:56 PM.. |
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07-23-2019, 06:52 PM
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Registered
Join Date: Apr 2008
Location: Miami
Posts: 963
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Finally got the pics up.
First is the screen image:  Next is the accelerometer values entered via the canbus and being read by the infinity software live 
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1979 SC, Slant nose wide-body cab conversion. AEM Infinity EFI, COP, supercharged! |
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07-24-2019, 03:53 PM
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New-ish 911SC Targa Owner
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I ended up going with the BTI gauges 60mm CAN bus programmed for AEM's Infinity. Loving it so far!
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'83 Targa 300k w/ freshened 3.0 with 930/52 case# 6770540 ARP and Raceware hardware - AEM Infinity 506, Triumph T595 ITBs, B&B headers, Dynomax muff, Fidanza FW, Alum PP-203whp |
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10-04-2020, 11:52 AM
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Jeanine
