Tom M'Guinn

Well, I tried data logging in/out intercooler temps today using standard GM "fast response" IAT sensors, but was disappointed by the response time of the sensors. Can anyone suggest sensors for this purpose that can react real-time to intake temp changes? Anyone try bosch NTC M8-F ?

jlturpin

I am not sure if this is the open element GM sensor, but the Open sensor is what was recommend to me. I have not installed it yet so I can't give you any real world feedback.

333pg333

Where have you located the sensors Tom?

Duke

The NTC M8-F is most likely very good, but I would start with the Bosch 0 280 130 085 sensor. Commonly used to measure IAT in turbocharged engines.
I use it myself and I cannot read any lag in my datalogs.

theedge

This would probably work for you.

http://kb.ls1gto.com/KB/article.aspx?id=10279

Tom M'Guinn

I intalled them into a spare set of stock i/c pipes. One in each pipe for before and after temps.

Tom M'Guinn

Thanks, I'll check that out. How do you mount them though -- they appear to be designed to plug into a port of some kind, rather than screwing in to a threaded port.

Tom M'Guinn

That's what I have I believe. Several places seem to recommend them for this, so maybe I am doing something wrong. Only thing I can think is that perhaps the response time is better when the temperature variation is smaller. I tested it in the pipe, going from ambient of about 70 degrees (F) to whatever my hair dryer was putting out. Doing that, it took many seconds for the signal to adjust to the new temp -- like 5 to 10 seconds... which seemed much slower than I expected.

Duke

It has an o-ring to make it seal, but you need a stud or a bolt to keep it in place. To put it in a pipe it's best to weld a flat piece to the pipe and then drill the hole for the sensor and tap it for a bolt.

RPHARRIS

I drilled and tapped a GM (delphi) open element sensor into the #1 runner of my intake manifold. You won't get quick response with one of these unless you make sure that you're getting air flowing THROUGH the element. If you just stick it on one of the ports the response will be very slow.

V2Rocket

What are you using to log temperatures?

Duke

Link G4.

Edit: I probably used a Link G3 back in 2009

V2Rocket

check this thing out, don't think it has a logging output but itd be handy for real-time...
http://www.ebay.com/itm/110855301442