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Sean
I don't give everything away as some things you need to find out for yourself (Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime)

If you ask nicely and show an interest then I have no secrets.....you just don't know how to ask nicely......you want everything to be a public battle.:smash: ending with you or your views as the only one left standing.:(

Anyway stop hijacking threads.....

Rob
As mentioned, I will put a current clamp on when its fired up and running, that way we can be sure of total load, but here are some typical figures to bear in mind

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

That lot alone means your contantly going to be running around 40 amps MINIMUM, and peaking at over 50......wait until you turn on the stereo and amp which on its own can draw 10-15 amps easy depending on wattage.
 
Not hijacking:p contributing, publicly and privately. I was respeonding to someone claiming that people don't share...........;apparently, so were you.
 
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...:eek:
 
Are these the fuse ratings you are using as these seem high...:eek:

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.
 
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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.


I'd be interested to see how much the water pump draws cold and hot if your measuring
 
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