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Temperature sensors-real time type
I have a Porsche 914-8 conversion project going. It has a hot Chevy 327 and I am having overheating issues. We are trying to debug the system. I was wondering if anyone knows of temp sensors that can be taped or attached to various locations and have some sort of readout in the cockpit.
I know there are data acquisition devices but some of these get really expensive. Plus I only need it attached during the testing phase so a permanent installation is not needed. Does anybody know of a relatively cheap, reliable system that can handle multiple sensors? thanks Fred
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well i have no idea about multiple readouts but what about doing a test run and then bringing it back in and reading various places on the block with a laser thermometer.
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Another idea was to try and measure the liquid flow through the system. I am thinking a flow meter would create too much of a restriction. And if I was really creative, I would put pressure sensors in various spot in the front trunk to make sure we are venting the radiator air properly through the wheel wells.
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How about a number of senders/gauges and some dude writing it all on a note pad?
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I am not sure an infrared reading is the best, I think a sensor strapped to the hose is better, but not ideal. The best would be a sensor in the water flow itself, but you don't want to start sticking in a bunch of connections in the system you can screw a probe into. I am open to suggestions. Mainly I am shooting for something that can be read while driving with the engine at various RPMs. I know there are home kits you can build and tie into circuit boards, but I am hoping for something between that and an expensive data acquisition system.
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#6
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Take a look on Ebay and see what type of temp gauges they have. I often find this type of gear fairly cheap on Ebay. Lots of stuff coming out of Asia.
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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine) 1988 F150 144,000 miles (leaks all the colors of the rainbow) Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra |
#7
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Has no one ever built a small block to your specs before ? Certainly cooling one of these motors has been done many times before...I know that a 914 is a small place to put a small block, but wouldnt a set of EGT meters or Air/fuel ratio meter do the same job you are looking for ?
What, other than a lean or rich condition, would cause "hot spots" at one rpm and not another ? Perhaps a trip to a chassis dyno would let you load the engine while looking for problems with the infrared. -John
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2009 Kia Sedona 2009 Honda Odyssey EX-L 12006 Jetta Pumpe Duse (insert Mercedes here) Husband, Father, sometimes friend =) |
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1. How many temperature channels do you really want to read at (essentially) the same time?
2. Is datalogging important? 3. Do you have a Windows laptop that you could use as part of the test? |
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Good questions. EGT might tell me if the engine is too hot but not too much about the cooling system. I am looking for different heat output at various speeds, not necessarily a specific RPM hot spot. There may be a speed where the cooling system can't keep up and then when you are below that, it takes a long time to come back down.
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4-6. I would like inlet and outlet of the radiator, inlet of the water pump and outlet of the block.
Logging is not critical. I could get a laptop, no problem. thanks Fred
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