Engine oil cooler?

Inverter has a cooler, no?

 

Yes, I'm aware of the first 3 gens having oem coolers but some have added additional cooling when autocrossings or other strenuous driving is occurring and inverter temps get above normal. The gen 2 landspeed Prius that was built by TRD and a crew ran additional cooling as well.

 

Yes, you can control the battery cooling fan with Torque. Just add a custom PID:
Name:BatteryCoolingFanSpeed ShortName:SFS ModeAndPID:3081000X Equation:A Min:0 Max:0 Units:No reply required Header:7.00E+03
Replace X from the PID above with the fan speed you want (1-6: eg 30810006 will run the fan on the highest speed), and add the gauge to the current display. Whenever you are on that page, the fan will run at the speed you set. Unfortunately, you cannot use the toggle button built into Torque, as the command has to be repeatedly sent for the fan to stay running. If you scroll off of the page with that gauge, then the fan reverts to being controlled by the car as always.

 

Running the fan after the car shuts down, say for 5 minutes, and only with high battery temps, that'd be good.

 

It wouldn't be fully automated, but if the battery is hot enough for its fan to run, one could keep the car in "READY" mode for those 5 minutes after parking. I did that for only maybe half a minute a few times last summer. Usually the fan speed was so slow (as in inaudible or barely audible with everything else off), that I hoped it wasn't critical.

That's a very different issue from additional engine oil cooling, which likely isn't needed except in extreme and unusual circumstances.

 

And I intend to add another inverter cooler to my '15. That one^^^^ worked fair at best. Didn't achieve the results I wanted. It needed it's own fan. A motorcycle fan mounted to it would've been perfect and may be what I do next time. Or I may add a 1st gen HV radiator as I did on my 2nd gen car. Things get quite warm when you autox.

SM-G900V ?

 

You are potentially in a niche situation where you manage to over heat your Prius racing at comparatively low speeds.

Some oil coolers I ignored did have included fans.

Derale Atomic-Cool Remote Engine Oil Cooler Kit w/ Fan - Class V Derale Engine Oil Coolers D15450

Derale 16-Pass Electra-Cool Remote Engine Oil Cooler Kit w/ Fan, -8 AN Inlets - Class II Derale Engine Oil Coolers D15500

 

Or just run cooler spark plugs?

Or, just stay right and obey speed limits.

 

As I understand it, he is autocrossing, a form of racing where only one driver at a time competes. "Autocross courses are typically one to two kilometres long and tend to place demands on car handling and driver skill rather than on engine power and outright speed. Due to the nature of a typical track, speeds can be slower when compared to other forms of motorsports, usually not exceeding highway speeds," - Autocross - Wikipedia, the free encyclopedia

So he is racing but not at high speed and may not get cool down laps.

 

Morgan is possibly doing some speeding on the highway...

But the rest of us are possibly doing some speeding off the highway as well - but my concern is more of keeping the oil and inverter coolant temps down regardless of being on the highway or track.

 

In my case, heat soak between runs is an issue. You make a run, 45-60 seconds, then you sit while the other cars in your class make their runs. Then back to you, typically get 3 or 4 runs. To top off the HV battery between runs I force charge, which builds heat in the HV system. Also, the many times at WOT on course also builds heat in the system. The ICE stays relatively cool but I've seen inverter temps above 130 degrees and climbing between runs. I run the HV fan on high but minus a bag of ice on the inverter (yep done it) I haven't found an effective way to keep inverter temps noticeably cooler. The unit I used in the picture in one of the earlier posts was just a heater core from a Corolla plumbed after the OEM inverter radiator.

SM-G900V ?

 

that's not gonna help.

 

Gen III inverter cooler's are pretty cheap. >$40 - Not being heat sinked to the radiator might help with cooling.

Radiator Inverter Cooler for Toyota Prius Prius C V 1 8 1 5 Hybrid Electric | eBay



Would you need a additional electric fan tho?

 

That's an AWESOME price. That would be large enough in addition to the original that it should dissipate heat well without an additional fan.

SM-G900V ?