July 28, 2021, 07:13:06 AM
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Author Topic:  15 Interceptor Sedan Ecoboost with GHT Tune - Engine Coolant Overtemp  (Read 196 times)

Offline TonytheBrit

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I installed a basic 93 octane tune from GHTuning on my 15 Interceptor Sedan Ecoboost.  I love the tune - the power is noticeably up but the biggest improvement is the transmission which no longer seems 3 steps behind.  Of course the Interceptors don't have Sport Mode so this is more important with one of these.

My issue is that 3 laps out on Gingerman Raceway I'm getting an Engine Coolant Overtemp warning and code.  No other codes.  The cooling system seems OK and it has only happened on the track.  Anyone have any experience of this?  I could replace the temp sensor but it is a big job so I'm reluctant.  The digital temp gauge showed normal the whole time - but that doesn't move unless you are pretty much boiling I believe so may not mean anything.

If I do need to upgrade the cooling do you have any practical suggestions?

Offline Macgyver

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Tracking it puts a strain on the system for sure. You are really tracking it. Not just a drag strip. I would make sure the coolant is topped off. Maybe install 160/170 thermostats even tho they will be open and stay open on the track no matter what the stat temp is.

I would monitor the "true" coolant temp next time via the programmer or laptop and programmer and see if it is actually getting that hot to set it off.

Also. Make sure your engine oil is topped off all the way to max. Its not a dry sump racing system. I am no expert but I would hate to starve the motor in a hard braking corner because the oil sloshes to one side ? Not sure if they are prone to this or not.

Lastly. Maybe the GHT has the default temp lowered a bit for safeties sake?
« Last Edit: July 16, 2021, 01:24:02 PM by Macgyver »

Offline Ta2dResqr

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When was the last time coolant was changed? It does break down over time. You may also want to consider a coolant additive (such as Water Wetter, Purple Ice, etc). Installing a lower temperature thermostat or adjusting fan temps (within the tune) may help. Lastly, I would start looking at methods to contain or eliminate heat. Wrapping exhaust components or coolant pipes to lower underhood temperatures. Adding hood vents (true functional products). Methanol injection. Adding trans or PTU coolers. Everywhere you can lower temp will lower over all heat and allow the system to last longer before you have issues.
Alicia "Sugar Bumps" Hunt 2015 White Platinum Tri-coat Metallic, Livernois Windstorm Cold Air Intake, Livernois Performance Springs, Possible Tune? (3 Bar MAP), MSD Ignition Coils, Drive Bright Puddle Lights, Drive Bright License Plate Lights, FORScan

 

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