Can I use a racetronik wire kit on a walbro pump?
07-28-2010, 06:59 AM
#5
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. I understand lots of people are using the harness for a dual 340 pump install with no issues. The harness comes with a 40amp relay. Max current draw from two pump should not exceed 20 to 25 amps total.
07-28-2010, 08:33 AM
#6
but the wire may only be 10 gauge, so that may be why they did not reccomend it for that application.
They sized the wire to minimize voltage drop for a single pump application. If you are doing a dual pump setup, I would just make my own harness, since you would not want to use the stock connector anyways to power the pump, since it is not rated for that current draw.
Ryan
They sized the wire to minimize voltage drop for a single pump application. If you are doing a dual pump setup, I would just make my own harness, since you would not want to use the stock connector anyways to power the pump, since it is not rated for that current draw.
Ryan
07-28-2010, 11:46 AM
#7
You may want to examine that relay. Most Bosch-style relays are 40 Amp on 87a (active when off) and 30 Amp on 87 (active when on). The harness uses 87, which limits the draw to 30 Amps. The startup current draw on any electric motor is always more than the current draw when it is running. Thus, it is possible that you would exceed the capacity of the relay.
Slow. the power wire is listed as 10 gauge. And you are correct, it is sized to minimize the power drop. While it could be used, you would be increasing the power drop, which would decrease the efficiency of the system.
You best bet is to install a second harness for the second pump. It should also have a different activation source, such as a Hobbs switch or a window switch.
Slow. the power wire is listed as 10 gauge. And you are correct, it is sized to minimize the power drop. While it could be used, you would be increasing the power drop, which would decrease the efficiency of the system.
You best bet is to install a second harness for the second pump. It should also have a different activation source, such as a Hobbs switch or a window switch.
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07-28-2010, 01:07 PM
#8
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You want to use 2 separate systems for daul pumps one 10ga wire is not enough to power both pumps. and you want to run them individually one all the time second when needed you will over heat the fuel and kill your new pumps.
07-28-2010, 07:16 PM
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You may want to examine that relay. Most Bosch-style relays are 40 Amp on 87a (active when off) and 30 Amp on 87 (active when on). The harness uses 87, which limits the draw to 30 Amps. The startup current draw on any electric motor is always more than the current draw when it is running. Thus, it is possible that you would exceed the capacity of the relay.
Slow. the power wire is listed as 10 gauge. And you are correct, it is sized to minimize the power drop. While it could be used, you would be increasing the power drop, which would decrease the efficiency of the system.
You best bet is to install a second harness for the second pump. It should also have a different activation source, such as a Hobbs switch or a window switch.
Slow. the power wire is listed as 10 gauge. And you are correct, it is sized to minimize the power drop. While it could be used, you would be increasing the power drop, which would decrease the efficiency of the system.
You best bet is to install a second harness for the second pump. It should also have a different activation source, such as a Hobbs switch or a window switch.
