How have bmw overcome the weakness in the electric water pump flow for the 300bhp 335i motor or are they not expecting people to be thrashing it flat out untill it s out of warranty.
Bmw electric water pump flow rate.
150l min 0 85bar 220l min 0 55bar protection.
Davies craig s range of patented electric water pumps ewp are available in flow rates from 80 l min 21 1 gal min up to 150 l min 39 63 gal min at 12v 24volt and in nylon66 alloy housings our ewp s are designed for universal fitment to compliment or replace a vehicle s existing mechanical belt driven water pump with simple diy installation.
12vdc to 4 wire.
I am using a bmw electric water pump on my hot rod.
Those pumps can of course be used in normal automotive cooling systems with system pressures in the range of 0 8 to 1 2 bar for instance.
7 03665 66 0 7 02881 66 0 bmw.
If i leave 2 connected to 12vdc continuously the pump runs at high speed.
The pump pressure or differential pressure expresses the resistance of which the pump has to work against.
Everything looks nice communication via serial interface control of all temperature load self diagnostics etc parameters intelligent management but.
Older ones use pump with 480w power for newer engines the power of it reaches 700w.
If i hold a 12vdc to 2 connector wire for 3 seconds and release it the pump runs at a slow speed.
I connected 12vdc to 1 wire.
Product range application.
Petrol engines of n series uses electric water pump.
This knot also isn t without oddities.