Fuel Levels and Electric Draw

Recently there have been two neat new electrical items that can really help out a club racer. While not directly sensors themselves, they may help you out and keep you in a race, rather than retiring early not knowing why. 

The first is a fuel level sender that will work with your stock fuel tank sender. This box does a few things. First, it will convert your fuel level sender resistance reading to a 0-5 volt signal, so  any data system can read it. Second, it will smooth the signal out, so the fuel sloshing in the tank as you drive on the track will not change the level as quick as it does with the stock gauge. Lastly, it makes the wiring much easier. 

You can find them here at Iron Canyon Motorsports. They offer the setup preprogrammed for some BMW and Miata models. Other cars can be custom programmed if you provide them the resistance readings on your stock fuel tank sender.

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The second item is a neat voltage and current draw converter. It will take your car's 0-15 volt electrical system and make it into a 0-5v signal directly relating to the charging systems voltage. It does the same thing with the current draw of 0-100 amps. This will allow you to see how well your charging system works, how much hysteresis is in the system, and watch for dying components. The current draw feature is great for folks without a PDM module, where they can see how turning on and off different electronic items affects the power draw. You can find this VI Logger Interface here at Race Energy. 

These are two items that are sort of specialized, but for their applications, they can not be beat. They could mean the difference between a tow back to the pits of a win for many people.  

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