S2000 Under The Hood S2000 Technical and Mechanical discussions.

4 bars plus high temp reading

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Old 06-05-2005, 06:43 PM
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Default 4 bars plus high temp reading

first off, the search button and I became enemies so thats not working for me.

Anyways, today i was stuck in traffic for more than 1/2 and i saw 4 bars.

Does anybody know the temp range?

Now some background info.
I'm supercharged w/ stock radiator and cap, and thermostat. I have a temp gauge connected to the upper radiator hose which at the time was reading 243 and climbing. ( I connected to the upper radiator hose instead of the hose that goes from the intake manifold to the throttle body because I could not get the temps to go over 150F. (and yes, it was grounded))

When I reached about 145 at the temp gauge (not sure I trust these digi gauges too much either) and 4 bars on the stock gauge i pulled over and shut it off as the car was also very sluggish in response.

Suggestions? spoon or mugen thermostat and fan switch? and who sells?''

Usually crusing around town temp will be around 200F. On the highway it will be between 195and 180F. Today was the first time stuck in traffic in hot weather...
Old 06-05-2005, 06:56 PM
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Do you have the AEM EMS?
Old 06-05-2005, 06:58 PM
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the 4th bar lights on a stock car at 235deg.

The gauge is controlled by the PCM from the ECT sensor signal.

Is the gauge a recent install? Has the cooling system been opened recently?

With the gauge sender in the upper hose, and a much higher reading from the engine, it sounds like the thermostat is not opening.
Old 06-05-2005, 07:09 PM
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I know that the Spoon Fan Switch and Thermo stat combo runs colder then the Mugen combo. So if you want to run colder, go with the Spoon set up
Old 06-05-2005, 07:15 PM
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Originally Posted by Sideways,Jun 5 2005, 09:56 PM
Do you have the AEM EMS?
no i dont
I got Greddy
Old 06-05-2005, 07:19 PM
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[QUOTE=Slows2k,Jun 5 2005, 09:58 PM] the 4th bar lights on a stock car at 235deg.

The gauge is controlled by the PCM from the ECT sensor signal.

Is the gauge a recent install? Has the cooling system been opened recently?

235? and we got 2 more bars? Gees, like I am going to wait for the 5th bar to light up.
Old 06-05-2005, 08:08 PM
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My h20 temps were in the 170-185 range with Mugen t-stat and fan switch, and a Vortech.
Old 06-05-2005, 11:01 PM
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Same here but turbo(AEM EMS).
190 at standing idle in traffic and 170-185 driving. Cooling mods should help
Old 06-05-2005, 11:09 PM
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Please don't up your head. Get this fixed immediately.
Old 06-06-2005, 05:43 AM
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Actually I just thought of something if I look at the simpler things

I got a front mount intercooler which obviously restrics flow to the radiator and I also have a bumper grille that may be restricing a bit of flow... I will let you all know


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