I'm not a car guy so I'm trying to get some more info on this problem I'm trying to fix.

I am trying to figure out if running the engine at high RPMs causes a higher voltage or current output from the alternator.

I just came back from a cruise to Whistler and I was having fun testing out the capabilites of my new K04 setup and I even bounced off the rev limiter for the first time. When I got home I checked my city LEDs and as I expected both of them failed.

There some portions of the electrical system in our cars are not regulated... and I am guessing one of them is our headlights. A halogen bulb is not a susceptible to voltage/current spikes as the filament can absorb the excess energy... a LED cannot.

I have thought that a current limiting resistor may need to be added into the circuit to protect the LED bulb but I am not sure if my premise of "high RPMs = higher voltage/current spikes"

So am I on the right path? Or is my reasoning flawed?

TIA for any information and opinons.

 

To my understanding the voltage regulator prevents spikes from high RPMs.