SeanDezart
Well-Known Forum User
Now THAT......is a life-important message.
Measure your own needs and don't rely on others.....
Sean
ECU 10+ amps (due to managing of injector and coil current)
Electric water pump 10-12 amps
Low pressure fuel pump 8 amps
High pressure fuel pump 8+ amps
Electric fan (only on for some of the time of course) 10-15 amps
quote]
Steve,
Are these the fuse ratings you are using as these seem high...
Are these the fuse ratings you are using as these seem high...
The examples I used are from my build
Bosch spec 13 amps for thier 150 litre/min motorsport pumps at lockout, I use a Sytec pump but its essentially the same.
Overall its not really high when you factor in that the fuel pumps x 2 will be delivering large flow and pressure, the injectors (6) are all around a couple of ohms (i = v/r) so individually at 2 ohms and 12 volts the current draw per injector will be around 6 amps....but the injectors are batched in pairs (It=I1+I2) so the load is technically 12 amps during injector firing injector duration will be around 70% at max so 70% of 12 is 8.4 (doesnt quiet work like that but its close enough) all of that load plus the coil pack triggering is handled by the ECU.