Electrical Question

[TVRleigh_BBWR]

Anyone know the minimum amount of amps to run fuel injection, I.e. Fuel pump's and ECU

[Chassis 33]

ECU doesnt pull that much at all 3A fuse will suffice
injectors 5a
fuel pump 15a
wasted spark coils 15a

Regards
Iain

[TVRleigh_BBWR]

Chassis 33 said:

ECU doesnt pull that much at all 3A fuse will suffice
injectors 5a
fuel pump 15a
wasted spark coils 15a

Regards
Iain

Thanks Iain,
Was told by someone well known that a 55amp alternator was not enough. and would be in trouble if I ran lights.

Also Injectors and coils are not on all the time, so total drain will be less than 20a

Once I get the Racer into the workshop I'll try and measure it.

[Chassis 33]

2x 55w bulbs will pull less than 10A, (I=P/V) the injectors and coils will have an RMS current draw well below the fuse rating. Unless you also have a big electric radiator fans and internal blowers etc etc, all running at the same time 55A is more than enough.
Regards
Iain

[Guillotine]

mine runs on a 55...at night...on the road.
Andy