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The Terminator
Engine/Tuning
Mark 8 cooling fan upgrade
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<blockquote data-quote="SlowSVT" data-source="post: 15388191" data-attributes="member: 20202"><p>Malcolm, something is way wrong here. The Killer Chiller should be delivering sub-ambient IA2's. All the needles are way north of where they should be those temps are what road racers are experiencing. Maybe your water pump is slipping, thermostat is stuck or installed backwards, bad head gasket, excessive sand clogging the rad or the AC condenser. Running the Killer Chiller is no different as when the AC is on which is what the system is designed to handle, it may cause the temp to rise a little but not enough to overheat it. The MK8 fan at this point is a band-aid.</p><p></p><p>I would shine a light thru the rad and condenser to see how much sand is wedged into the fins (compressed air should dislodge most of it). Any change your rad is partly clogged? Are a lot of the fins bent? If the contact area between the fins and cooling tubes are badly corroded the aluminum oxide will act as an insulator (I had that problem on my old Subaru Legacy). A new rad may be your answer, it will certainly work better then that been in use for 12 years.</p><p></p><p>For grins I would run 60 grit sand paper across the water pump pulley to rough it up to see if there is a belt slippage problem. Perhaps the impeller is damaged or lose on the shaft. This is not likely but stranger things have happened.</p><p></p><p>Inspect, test or replace the thermostat.</p><p></p><p>Take a leakdown test maybe the head gasket is introducing combustion gasses into the cooling system.</p><p></p><p>At idle your engine should run no hotter then a bone stock GT especially one getting 40% more fuel dumped into the engine that happens to be alcohol.</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 15388191, member: 20202"] Malcolm, something is way wrong here. The Killer Chiller should be delivering sub-ambient IA2's. All the needles are way north of where they should be those temps are what road racers are experiencing. Maybe your water pump is slipping, thermostat is stuck or installed backwards, bad head gasket, excessive sand clogging the rad or the AC condenser. Running the Killer Chiller is no different as when the AC is on which is what the system is designed to handle, it may cause the temp to rise a little but not enough to overheat it. The MK8 fan at this point is a band-aid. I would shine a light thru the rad and condenser to see how much sand is wedged into the fins (compressed air should dislodge most of it). Any change your rad is partly clogged? Are a lot of the fins bent? If the contact area between the fins and cooling tubes are badly corroded the aluminum oxide will act as an insulator (I had that problem on my old Subaru Legacy). A new rad may be your answer, it will certainly work better then that been in use for 12 years. For grins I would run 60 grit sand paper across the water pump pulley to rough it up to see if there is a belt slippage problem. Perhaps the impeller is damaged or lose on the shaft. This is not likely but stranger things have happened. Inspect, test or replace the thermostat. Take a leakdown test maybe the head gasket is introducing combustion gasses into the cooling system. At idle your engine should run no hotter then a bone stock GT especially one getting 40% more fuel dumped into the engine that happens to be alcohol. [/QUOTE]
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