Canadian_CD9A
Supporting Member
- 1,077
- 833
- Feb 10, 2012
-
Winnipeg,
MB_Canada
I've had a lot of downtime since COVID-19 hit and noticed that my plan calls for a huge electrical load on the system. I've found approximations of amperage draws for the following:
-MR2 electric power steering pump: 30-40 amps typical load, up to 70-90 amps max load.
-Tilton transmission cooler pump: 2-3 amps typical load, 6.6 amps max load.
-In-tank Walbro 255 puller pump: approximately 5.2 amps @ 10 psi fuel pressure.
-Bosch 044s (or similar) pusher pumps x2: 9.73 amps each @ 40 psi fuel pressure, 13 amps each @ 130 psi.
-12" Spal fan (or similar), approximately 1200 cfm: 14.5 amps.
-Ignition amplifier box: 6-20 amps, plus 6 amps per coil.
All in all, this adds up to a lot of electrical load on the system, not even counting the general accessories (lights, ECU, sensors, injectors, etc). How do DSMers and Evo owners typically deal with this? Is it as simple as a big alternator and upgraded wires? What alternator would work best, and what other tricks does Tuners have?
-MR2 electric power steering pump: 30-40 amps typical load, up to 70-90 amps max load.
-Tilton transmission cooler pump: 2-3 amps typical load, 6.6 amps max load.
-In-tank Walbro 255 puller pump: approximately 5.2 amps @ 10 psi fuel pressure.
-Bosch 044s (or similar) pusher pumps x2: 9.73 amps each @ 40 psi fuel pressure, 13 amps each @ 130 psi.
-12" Spal fan (or similar), approximately 1200 cfm: 14.5 amps.
-Ignition amplifier box: 6-20 amps, plus 6 amps per coil.
All in all, this adds up to a lot of electrical load on the system, not even counting the general accessories (lights, ECU, sensors, injectors, etc). How do DSMers and Evo owners typically deal with this? Is it as simple as a big alternator and upgraded wires? What alternator would work best, and what other tricks does Tuners have?