water pump circuit breaker pops

[Gmirza]

I use a Summit fuel pump relay to power the water pump drive and a 20 amp inline fuse. So far so good.

[FireSale]

I have fuse protected relays controlling everything with a 20 amp draw or above. Over 15, really. Very few amps in my switch panel. Tech don't like them extra wires but, well, very few amps in my switch panel. I'm on 12 volts so I can't address the charging issue.

[Mike Pearson]

The amperage to run the water pump would be less with 16v than 12v so it is probably just an issue with the circuit breaker. Are you running an electric fan along with the water pump on the same circuit. That will for sure be too much draw.

[1legjerry]

Here at Meziere we recommend that you DO NOT run the water pump while using using 16 battery charger.

[Jeff Niceswanger]

Originally Posted by 1legjerry

Here at Meziere we recommend that you DO NOT run the water pump while using using 16 battery charger.

I have a question. You come back from a run, lets say your in the semi finals. You know you have 20 minutes and they will be calling you back up to the lanes.Your 16 volt batteries are way low, and they are a constant worry (especially in a Fuel Injected engine), but your engine needs 40 degrees drug back out of it... If you can not run the pump while your charging, your not heading up the lands prepared. What it sounds like is all water pumps should have a 12 volt step down, right ?

[Mike Pearson]

Originally Posted by Jeff Niceswanger

I have a question. You come back from a run, lets say your in the semi finals. You know you have 20 minutes and they will be calling you back up to the lanes.Your 16 volt batteries are way low, and they are a constant worry (especially in a Fuel Injected engine), but your engine needs 40 degrees drug back out of it... If you can not run the pump while your charging, your not heading up the lands prepared. What it sounds like is all water pumps should have a 12 volt step down, right ?

I have a plug on my fan and pump. After a run I cool the car using a separate battery. Just unplug from the car harness and plug in to the harness on the separate battery. That way I can turn off the battery disconnect switch in the car to charge the battery and cool the car as needed. Works excellent

[Dave Gantz]

Originally Posted by Mike Pearson

I have a plug on my fan and pump. After a run I cool the car using a separate battery. Just unplug from the car harness and plug in to the harness on the separate battery. That way I can turn off the battery disconnect switch in the car to charge the battery and cool the car as needed. Works excellent

Ed Wright (Hasn't been on here for a while, a post on here said his health isn't good. Hey Ed?) posted here about a similar system. Sounds like a great idea.

[1legjerry]

Originally Posted by Jeff Niceswanger

I have a question. You come back from a run, lets say your in the semi finals. You know you have 20 minutes and they will be calling you back up to the lanes.Your 16 volt batteries are way low, and they are a constant worry (especially in a Fuel Injected engine), but your engine needs 40 degrees drug back out of it... If you can not run the pump while your charging, your not heading up the lands prepared. What it sounds like is all water pumps should have a 12 volt step down, right ?

I think you will find all your 12 volt electronics will last longer if you don't run them when on the battery charger.

An alternator would help, You wouldn't need to worry about the ignition getting 16 volts while the engine is running.

Like other have said a step down resistor

A small 12 volt jump box to run just the pump and fans between rounds.