Re: should i upgrade my power wiring
The 500/1 is speced for a 50A fuse. The reason that you are blowing fuses at idle is that you are getting a voltage drop from your factory alt and battery at idle RPM and the amp by nature of its design draws more current so it can continue to make full power with the lower voltage. That extra current combined with a fuse that's too small to begin with is your problem.
If the amps are not goint to draw more than 150A, and these amps won't, a 150A fuse is fine. There is only a maximium fuse size for a certain size wire. No reason that you can't run smaller. Not losing anything running a fuse smaller than max size for the wire.
Originally Posted by FWB_1234
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