A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

an idea for the ambient temp sensor...

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Old Jun 24, 2003 | 10:09 PM
  #1  
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Default an idea for the ambient temp sensor...

i'm sure some of you with FMIC's have thought about this, but why not put it in the piping for a front mount, post FMIC. That is to say, put the sensor into the intake tract and let it display to you the post intercooler temps. Would be a great way to see what your intake temps are in realtime. Any idea how hot the ambient temp sensor will go up to?

Just curious =P
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Old Jun 24, 2003 | 10:13 PM
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Default i was thinking more on the line of an ic outlet temp...

not sure it's going to be that easy though. iirc the sensor that runs the cluster readout also feeds info to the ac.
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Old Jun 24, 2003 | 10:15 PM
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Default

well i'm thinking IC outlet(post IC) temps ... that is between core and throttle body.
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Old Jun 24, 2003 | 10:23 PM
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Default what i was saying is...

you'll need to isolate the dash readout from the ac or you'll have weird climate control.
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Old Jun 24, 2003 | 10:34 PM
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Default That sensor will not take the boost pressure inside the tube,

it also wont react fast enough to the changing air temps. If you want to do it right go with a dual intake temp gauge from Autometer.
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Old Jun 25, 2003 | 04:10 AM
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Default Save yourself some trouble...

call AWE, and ask them what they used for their S4 intercooler testing. I'd bet money they were measuring IAT's.
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Old Jun 25, 2003 | 07:40 AM
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Default it has been done bro! you just need to search around...

I had the same idea a while ago, but I decided against it because I wasn't comfortable putting that probe in the intake track... if it blew off, I would be in trouble!

but TTschwing did something cooler, pre and post temp guages... to measure intercooler effieciny... I think I will do something similiar when I get a intercooler...

his fotki pages are <A href="http://public.fotki.com/ttschwing/intercooler_cooling/">here</A> and his website is <A href="http://www.modshack.info">modshack.info</A>

it is cool....

originally I wanted to get a temp rearview mirror and route the ambeint temp to that, and route the IAT to the dash...
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Old Jun 25, 2003 | 08:15 AM
  #8  
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Default Where is that temp reading from?

I think paul wants to see what the readings are after the maf but well before the intake manifold.
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Old Jun 25, 2003 | 08:48 AM
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Default nice =) good to know but yeah i agree, the only part that concerns me is if the probe breaks and

well you know the rest
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Old Jun 25, 2003 | 09:02 AM
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Default Since they were testing IC's,

I would imagine they were getting pressure and temp readings pre/post IC. Sounds like that's what he's looking for. He could ask what they used and where they got it from and save himself some legwork.
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