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I'm at the point of seriously starting a project to build and Arduino/mc (of some sort) based multigauge to go in the console where triple gauges normally sit. I have found a screen of the right dimensions. I would need to 3D print a bezel/housing to make it mount up pretty. That's doable. I would need to come up with interfacing circuitry for the EGT thermocouple. I'm sure there will be examples of that into Arduino out there somewhere. Ditto with characterising the output of the existing boost gauge's MAP sensor and the oil T gauge's thermistor. And then, because it is a screen, it can be controllable, so it can show more than the 3 gauges I currently have. So I can come up with a list of other things I want to be able to show on it that can be reasonably easily handled via an Arduino's inputs. I do not need this project. But the stepper gauges I'm using are giving me grief. It's time to come kicking and screaming into the 21st century. -
By Murray_Calavera · Posted
Would you really prefer pillar gauges over something like this? https://www.haltech.com/product/ht-067010-haltech-ic-7-digital-dash-kit/ Or if you can spend more, this? https://www.haltech.com/product/ht-068000-haltech-uc-10/ I could write a thesis about how much better a modern dash is compared to a series of gauges. -
By joshuaho96 · Posted
People think it's a waste of space, ugly, etc, generally associate "emissions control equipment" with "bad". These OBD1 vacuum-only systems I'm not a huge fan because I think they don't go far enough. They're wasting some of the fuel captured because they start purging as soon as the engine pulls vacuum. Later OBD1/OBD2 they put an electric purge valve on them to vent only when closed loop is active so the ECU will trim some fuel out. Even later OBD2 with zero evaporative loss the tank is 100% sealed from atmosphere until you run the engine or press the refuel door release. The tank has to take much higher vacuum/pressure spec but you never deal with saturating the charcoal canister and losing some fuel that way. The fuel also lasts as long as it would in a 100% airtight container which is nice when you're dealing with modern E10 pump gas. -
By joshuaho96 · Posted
If your luck is anything like mine, what happens is in the process of pulling hoses to get access to the one leak you create many more leaks because every o-ring was on the verge of failing and the strain of pulling it apart caused it to fail. Sometimes life is simple, sometimes you pay twice trying to save once. For the R33 you can still get most AC components from Nissan, I use nissan epc data or amayama to look up the part numbers and then search for the cheapest/most practical way of sourcing from there. -
By joshuaho96 · Posted
The dirty secret is there is nothing recyclable about the plastic bag or old plastic bottles either. Our local trash collection explicitly calls it out as hazmat in both cases. Oil-soaked rags + paper towels too. Oil-soaked cardboard is also not recyclable. The most common case of oil-soaked paper like that is pizza boxes, which are explicitly compost-only from the oil. To my knowledge hazmat oil contaminated plastic the only solution is either landfill or "thermal recycling". Most plastics in my experience there is slow permeation of the oil it's holding into the container so it's very challenging to get it 100% clean.
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