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Old 11-29-2012, 04:17 PM   #11 (permalink)
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I tried it with tape one time and just kept adding til it was completely blocked and used my sg2 to watch temp. Ive also added a bottle of water wetter to the antifreeze and put the amount needed to be removed from the rad into the over flow bottle.

Yeah. does wonders for acceleration at 50-70mph with the seat of the pants dyno.

Its also nice to have the heat a degree from max and still maintain normal operating temperature, fuel economy and other IMA behavior when its freezing or below out. I have MS so heavy clothing is out of the question.

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Old 12-14-2012, 02:48 PM   #12 (permalink)
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For the first time since installing the grill block I had the car on the highway for a reasonable amount of time. I noticed the full grill block certainly did its job. The ambient temperature was around 45F out. It took a little while, but the coolant temp just kept going up and up until around about 204F / 95.5C the radiator fan kicked on and the coolant temp quickly dropped down to around 190F. After that I turned the heat on and that kept the coolant temps in check. At lower speeds (45mph and less) I would be willing to bet the cooling fan would probably never come on.

Looks like that actuated grill block will be coming in handy every once in a while even in winter.
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Old 12-15-2012, 07:31 PM   #13 (permalink)
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How are the other cooling systems doing? I think I heard or saw a second cooling system for the inverter and maybe another for mg2 if I am not mistaken?

Yes, its nice to have toasty heat in freezing temperatures and still able to use ev mode, autostop, etc from a hybrid.
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Old 12-16-2012, 10:24 AM   #14 (permalink)
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As it is right now I'm not monitoring inverter temperatures. After this experience I will be looking for some x-gauges to program into the scangauge to try to get something. I've been told at the least I can get MG1 & 2 (motor generator) temperatures. However, after hearing what kind of temperatures they operate at I'm not really concerned much.
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Old 12-16-2012, 11:15 AM   #15 (permalink)
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Pssst.

Let me know how to set up my scanguage for the inverter temperature when you do!
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Old 12-16-2012, 03:08 PM   #16 (permalink)
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I found this very long list of X-Gauges for the Prius. The four that I've tried so far appear to be working correctly.

https://docs.google.com/spreadsheet/...zdnhhbmc#gid=0
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Old 12-16-2012, 08:59 PM   #17 (permalink)
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FWIT I sat in my insight with a space heater trying all of those included ones for afr and lean burn, etc and none of them worked. This is with the latest update too.

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Originally Posted by RobertSmalls View Post
I found this very long list of X-Gauges for the Prius. The four that I've tried so far appear to be working correctly.

https://docs.google.com/spreadsheet/...zdnhhbmc#gid=0
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Old 12-16-2012, 09:02 PM   #18 (permalink)
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Codes are different for every manufacturer and probably even differ from model to model in some cases.
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Old 01-05-2013, 11:37 AM   #19 (permalink)
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Daox,

Have you been able to monitor inverter temps yet?

I have a 2012 Prius now and I used the insulation foam to block 100% of the lower grille (radiator) but left the upper grille (inverter) unblocked. Under normal highway driving at 29F-55F and <70mph my coolant temps are 191-195F. Going uphill on my morning commute temps may get to 198F as long as temps stay below 50F. At 60F I saw temp rise to 202F then drop back to 195F pretty quickly. I feel I have a good handle on coolant temps now but I am concerned with inverter temps and my Scangauge has not been updated since 2006 and won't accept xgauges for my 2012.

I made the mistake of driving to LA at 75-85mph with the grille block on and when I hit the grapevine my temps climbed to 211F before I realized there was a problem. Despite temps in the low 50s, the grille block was obviously too much. Just a reminder so you guys don't do what I did. Make sure you have the tools needed to remove your grille block at a moments notice.
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Old 01-05-2013, 08:18 PM   #20 (permalink)
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I still haven't bothered to try anything out. My daily commute is 7 miles at a top speed of 45 mph. In winter I get up to temp, and all the excess heat goes to heating the cabin. There is no chance of overheating.

That being said, this weekend I took a trip across state. Half of the trip was 55 mph country roads. With the heat set to max hot, and the fan on about 1/4 speed the fan came on about 3 times. At 60 mph the coolant temps rose a lot faster and I needed to pull one of the foam pieces out of the upper grill.

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