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-   -   water pump circuit breaker pops (https://classracer.com/classforum/showthread.php?t=80772)

Mike Pearson 11-05-2021 03:32 PM
Re: water pump circuit breaker pops
 
Quote:
Originally Posted by Jeff Niceswanger (Post 651588)
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 11-05-2021 10:34 PM
Re: water pump circuit breaker pops
 
Quote:
Originally Posted by Mike Pearson (Post 651593)
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 11-08-2021 05:59 PM
Re: water pump circuit breaker pops
 
Quote:
Originally Posted by Jeff Niceswanger (Post 651588)
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.


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