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Old 04-22-2014, 06:15 PM   #11
Outlaw5.0
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Normal engine running temp is 195-200 degrees for our daily drivers. Most feel 210-235 degrees is too hot(and it is), so how can 195-200 degrees be too cold?.
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Old 04-22-2014, 07:41 PM   #12
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Quote:
Originally Posted by Kjanracing View Post
The theory is that a cooler engine temp will be less prone to detonation, you can run more spark advance, and the fuel octane requirement is lower, to name a few. Those are a few points regurgitated constantly. The other side mentions decreased clearances, increased friction, thermal efficiency....
Can you point me to any links to support your argument? Very interested.
i dont have any links, but thermodynamics says higher temperatures are more efficient, obviously there are other materials of construction, fuel, tuning, emissions, reasons why they run at the tempertures they are now.

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He stated " Coolant temp runs right around 195-200 " which is right where you want the engine to be running ,why do you feel that is cold ?

Tom
honestly i stopped reading at 180*, which is the temp i assumed his engine actually was at
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Old 04-23-2014, 09:58 AM   #13
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One more quick point. I flashed back to the stock setting and looked at coolant temps, still with the 180 stat. Really no different than with the OEM thermostat. It may take a bit longer to reach the last say 10*, but OAT is getting warmer, so hard to say. The point being, with the stock tune a 180 stat won't do a thing for ya. With a tune and differently programmed fan settings, there is a range of coolant temps you could run the engine at. Hope this info helps someone....
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Old 04-23-2014, 11:01 AM   #14
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Correct adding the 180 with out a tune wont do much good , you have to also change the Fan Temp setting

Tom
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Old 04-24-2014, 04:53 PM   #15
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No complaints about fan operation here in Florida :-)
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Old 04-24-2014, 05:13 PM   #16
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90+ degrees in central Texas today, coolant temps never got above 186 in traffic and sat at 178-181 when steady speed of 55MPH. The Tstat and tune are a must for long hot summers.
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Old 04-24-2014, 06:18 PM   #17
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Is your fans on when your at the 178-181 ?

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Old 04-28-2014, 08:14 AM   #18
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Quote:
Originally Posted by Kjanracing View Post
Back to cooling fan operation. I think the programming could be a lot more realistic. I do think it is prudent to run a lower coolant temp with the tune. They could set an ON temp at ~205*f and off at ~200. With a 180* stat, set on temp at, say 195 and off at 190* coolant temp. There is no reason to run the fan lower than 190 if the air conditioning compressor is off, not that I can see anyway. The fan programming has been an issue for discussion starting about 1.5 years ago-see above mentioned thread 211 and earlier.
Injected has a very good product, and with revised fan programming to reflect what the car can realistically do, it would be a great product.
Injected Engineering, are you listening?
I agree. I've got the Injected tune & love everything about it except the fan operation. Haven't done the 180 stat yet, though.
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Old 04-28-2014, 09:54 AM   #19
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The fan still runs all the time with the 180. It may go to low speed on long downhills. Other than that, coolant temp generally runs above the 190* they say they are targeting. Makes about as much sense as running the HVAC fan on high all the time and controlling air flow with the vent shutters.
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Old 04-28-2014, 10:28 AM   #20
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Quote:
Originally Posted by ChrisRyan View Post
90+ degrees in central Texas today, coolant temps never got above 186 in traffic and sat at 178-181 when steady speed of 55MPH. The Tstat and tune are a must for long hot summers.
Yes, when it's hot out, and/ or AC running the fan needs to run. When it's 20* outside, running the fan makes no sense. The fan programming could be better thought out.
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