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Old 07-30-2019, 02:50 PM   #1
90volvo
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Default Air fuel gauge or pyro?

Adding turbo my 240. Going to install something to monitor ex. Etc. would exhaust temp gauge be best or air fuel wide band? Next question where should sensor be installed in exhaust? Notice my down pipe has a fitting? Thanks
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Old 07-30-2019, 03:16 PM   #2
oldschoolvolvo
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I’d go wideband O2 sensor. You will need to have an additional bung welded to your downpipe. The AEM 30-4110 is a good choice. Their documentation specifies where the second bung should be located.
https://www.aemelectronics.com/produ...uego-afr-gauge
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Old 07-30-2019, 04:45 PM   #3
stick70
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AFR gauge hands down. For what you're doing there's no reason to get a egt gauge over it. The AEM documentation listed above will probably say 36" or something from turbine outlet, ideally you want the wire pointing up so that any moisture will drain out of the sensor element.
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