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Lower Degree Thermostat

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Old Jun 5, 2007 | 03:47 PM
  #16  
Evo8yurAMG's Avatar
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Originally Posted by Dave Mac
The ONLY thing the thermostat does is activate the cooling fan. (A thermostat is a temperature activated electrical switch) The coolant is ALWAYS in constant circulation in your engine and through your radiator when your car is running. Just as the oil in your car is ALWAYS in constant circulation when the engine is running.
ummmm....its actually mechanical...not electrical. go to autozone and ask to look at one.
and your wrong about the coolant always being in constant circulation it opens at a certain temp. it might happen really fast but it still has a pause
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Old Jun 5, 2007 | 08:55 PM
  #17  
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A thermostat does not trigger the cooling fan. That is done by the ECT sensor.

A tune does not remedy the issue JKav mentioned. If the ECT tells the ECU the motor isn't warm enough, the ECU reverts to 'warm-up' mode, which richens the mixture in an effort to bring it up to temperature. A tune doesn't fix this.

If it was advantageous to make the engine run cooler (and it isn't for several reasons), the factory would have simply used a lower temp thermostat. They didn't.

In essence, this is a fix for a problem that doesn't exist, and because of this, can only create a problem where there presently is none.
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Old Jun 5, 2007 | 09:00 PM
  #18  
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Originally Posted by Ted B

If it was advantageous to make the engine run cooler (and it isn't for several reasons), the factory would have simply used a lower temp thermostat. They didn't.

In essence, this is a fix for a problem that doesn't exist, and because of this, can only create a problem where there presently is none.

well i semi disagree. the factory doesnt always put the best parts possible in... BUT i do see installing the new thermostat as a fix to a problem. like say you have issues overheating. my car runs cool without it so i wouldnt add it. so i do agree with the later statement 100 percent. but idk i dont see how its gonna hurt your car.
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Old Jun 5, 2007 | 09:07 PM
  #19  
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It wouldn't have cost the factory any more to install a different thermostat. They didn't do it for several reasons.

Engine design tolerances that factor metal expansion rates take design ECT into account. Design ECT gives the best wear characteristics. Likewise, running design ECT improves heat rejection and increases efficiency.

Again, it's an attempt to resolve an issue that doesn't exist, and potentially creates issues in return.
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Old Jun 5, 2007 | 11:10 PM
  #20  
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From: in a van down by the river
If you're overheating, a lower temp thermostat won't prevent you from overheating. It's just delaying the inevitable.

If you're overheating, there are a host of areas that you should look at first. A lower temp t-stat is near the bottom of that list (if not AT the bottom).

But hey, bore wash smells great, right? That neato t-stat is definitely worth re-ringing your pistons and honing your cylinder bores for every year!
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