Terry Oxandale
Skinny Man
More an FYI, than a question. At my last event, I had the car running some pretty quick laps. Had the suspension pretty close, and the Holley EFI pretty close, so I was making more power. So between the suspension settings and the power settings, the overall lap times decreased, and obviously, the load on the engine increased. I'm saying all that to introduce a newer problem I had not ever experienced before with my "ignition", and that was whenever I got to the point where my lap times were getting pretty respectable, the engine would quit down the main straight, where maximum power was being made. The cause was the ignition fuse blew, which happened three more times that day, and was eventually my reason for loading up the car early.
Once I got home, I set an ammeter in the ignition circuit so I could monitor it while running the motor in the garage. What I found was at idle, I had ~2 amps on the circuit, when I would rev the motor up, the current flow increased to ~10-12 amps. I had used a 10 amp fuse in the ignition circuit prior to today, so it seems pretty obvious that the sustained high rpm power was probably causing the ignition circuit current flow to exceed the 10 amp fuse rating. So I've now inserted a 15 amp fuse in the circuit, but have found no reference as to what the normal current draw through the ignition wire should be. I will contact Holley sometime in the future (it's usually a very long wait on "hold") to gain some insight into whether this is a normal current flow or not. Not sure if this includes just the ignition, or includes injector pulse power as well.
Once I got home, I set an ammeter in the ignition circuit so I could monitor it while running the motor in the garage. What I found was at idle, I had ~2 amps on the circuit, when I would rev the motor up, the current flow increased to ~10-12 amps. I had used a 10 amp fuse in the ignition circuit prior to today, so it seems pretty obvious that the sustained high rpm power was probably causing the ignition circuit current flow to exceed the 10 amp fuse rating. So I've now inserted a 15 amp fuse in the circuit, but have found no reference as to what the normal current draw through the ignition wire should be. I will contact Holley sometime in the future (it's usually a very long wait on "hold") to gain some insight into whether this is a normal current flow or not. Not sure if this includes just the ignition, or includes injector pulse power as well.
