180 degree termostat - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 19 Old 04-04-2002, 06:48 PM Thread Starter
 
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180 degree thermostat

I know that this is old like world question, but what is the advantage of using it if any?
Just found very interesting info at http://www.pro-flow.com/t-car.html

Quote:
The ECT (engine coolant temp) sensor and the thermostat are very important. The computer doesn’t give you full performance until the engine coolant is above 190 deg. F. Low temperature thermostats will put your car in a starting mode when you really want to be in a full warmed up and honest-to-Pete-running mode.



Last edited by Andrew WOT; 04-04-2002 at 07:30 PM.
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post #2 of 19 Old 04-04-2002, 08:10 PM
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With the stock thermostat my temp would be between 194 and 210. Normally hovering around 196-203

With the 180 T-stat I see between 185 and 201 so far for the last couple of weeks. Normal hovering around 187 to 194.

I definitely have shorter cooldowns at the track, and I'd rather be running it in the range of 190 and not closer to 200.


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post #3 of 19 Old 04-04-2002, 11:40 PM
 
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I saw that same article at Pro-Flow a few days ago. The article appeared to be written about a 5.0, which would make it an EEC-IV. Does anyone know if this theory holds in the EEC-V?
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post #4 of 19 Old 04-09-2002, 11:42 PM
 
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ttt
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post #5 of 19 Old 04-10-2002, 10:43 AM
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post #6 of 19 Old 04-10-2002, 10:55 AM
 
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Quote:
Does anyone know if this theory holds in the EEC-V
Probably even more so.
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post #7 of 19 Old 04-10-2002, 12:45 PM
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I have read from numerous Cobra owners that their car came with a 180 t-stat from the factory. I bought my car used with 10,000 miles on it and it had a 180 stat. The previous owner said it was bone stock but there is no proof that he didn't change it.

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post #8 of 19 Old 04-10-2002, 01:37 PM
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Quote:
Originally posted by Mike[socal]


Probably even more so.
BUZZ! Wrong. The EEC-V, at least in my 98 Cobra, switches over the the standard tables at 170 degrees.

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post #9 of 19 Old 04-10-2002, 01:39 PM
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Quote:
Originally posted by Slithering_Joe
I have read from numerous Cobra owners that their car came with a 180 t-stat from the factory. I bought my car used with 10,000 miles on it and it had a 180 stat. The previous owner said it was bone stock but there is no proof that he didn't change it.
When I went to change mine recently, the one I took out had 180 stamped on it, but I tested it (water and a meat thermometer) and it began to open ~ 195.

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post #10 of 19 Old 04-10-2002, 01:39 PM
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DLF, how do you know this?


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post #11 of 19 Old 04-10-2002, 01:46 PM
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Quote:
Originally posted by Slithering_Joe
DLF, how do you know this?
Know what? If you're talking about the 170 degree issue, I have looked at the stock EEC-V values with my EEC-Tuner.

And, to take it a bit further, it switches to the stablized open loop fuel table at 150 degrees, but adaptation doesn't begin until 170 degress.

It also treats a start at over 150 degrees as a "hot start".

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post #12 of 19 Old 04-10-2002, 01:52 PM
 
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Anyone know how the GT computer handles the temperature vs open loop program? I'm particularly interested in '96, but other years would help.
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post #13 of 19 Old 04-10-2002, 02:10 PM
 
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The article talks about operating temp and performance. PhatDoggy asked if this applied to the EEC-V since the article was talking about the EEC-IV. I said probably even more so. You say I'm wrong.

WTF does my comment have to do with switching tables? I merely implied that the EEC-V also looks at coolant temp and makes adjustments accordingly and probably even more so than the EEC-IV due to stricter emissions etc.

Tell my how the EEC-V is nothing like the EEC-IV and that they're totally different animals.
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post #14 of 19 Old 04-10-2002, 02:48 PM
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Mike, I was referring to this quote:

quote:
--------------------------------------------------------------------------------
The ECT (engine coolant temp) sensor and the thermostat are very important. The computer doesn’t give you full performance until the engine coolant is above 190 deg. F. Low temperature thermostats will put your car in a starting mode when you really want to be in a full warmed up and honest-to-Pete-running mode.
--------------------------------------------------------------------------------

Which I thought you were agreeing to. No harm intended, sorry if I offended you, just a having a little fun.

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post #15 of 19 Old 04-10-2002, 04:08 PM
 
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I guess I could have been more clear in asking the question. I know that the computer looks at the temp and alters running conditions based on it. The article I referred to declared that the 180° thermostat wouild not let you out of this warm up mode in the '95 and earlier 302s with EEC-IV. My real questions is whether a 180° thermostat will allow me to get into a normal operating mode. I would not want to always be running in a warm up mode.
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post #16 of 19 Old 04-10-2002, 04:18 PM
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Keith, I can't tell you for sure without knowing what specific EEC your car has, but my 95 SC w/ EEC-IV also uses 170 degrees as the primary breakpoint. My advice is that a 180-185 thermostat would more than likely be OK, but I'd avoid a 160.

If you know, or get, the 4 character code on your EEC, I might be able to tell you for sure, or at the very least, direct you to a message board where you can get an answer.

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post #17 of 19 Old 04-10-2002, 04:20 PM Thread Starter
 
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How about VFA1?
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post #18 of 19 Old 04-10-2002, 04:30 PM
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Quote:
Originally posted by Andrew WOT
How about VFA1?
Sorry that strategy isn't available to me. Search or post on this message board http://groups.yahoo.com/group/EECTuner/ for the answer.

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post #19 of 19 Old 04-10-2002, 06:42 PM
 
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Thanks guys. I'll put it in and see what happens.
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