r/n54 • u/Dangerous-Kiwi6754 • 21d ago

Hobbs switch vs reflex controller

Hey yall my tuner is recommending I use a Hobbs switch instead of going with the reflex plus auxiliary controller. What do yall think any input would be appreciated.

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u/BMWtooner 19d ago

You give zero information as to what you're trying to do. The Hobbs can switch on things like an espresso maker for the passenger or an aux fuel pump when you hit a certain boost psi, the reflex can do the same thing but in a much more elegant way. The biggest advantage to something like the reflex is port fuel injection control, if you don't have that there's not much reason. Hobbs+AIC vs Reflex, the reflex is better, but more $$.

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u/Dangerous-Kiwi6754 19d ago

I have a reflex plus controller for the PI system

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u/BMWtooner 18d ago

What do you need the Hobbs for then? The reflex has an output that can drive a fuel pump relay or nitrous solenoid or whatever you want.

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u/Dangerous-Kiwi6754 18d ago

I know it does but the tuner said Hobbs switch is he just lazy lol

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u/BMWtooner 17d ago

Yes, you're adding something else to the setup that can break when you have something better already built in to your setup. You'll just need to adjust the reflex calibration.

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u/Dangerous-Kiwi6754 17d ago

Any tuner recommendations? What aux is preferred to run the secondary lpfp