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LT65
Sun March 8, 2009 3:37am
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LT65
Sun March 8, 2009 3:37am
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schipps
Sun March 8, 2009 2:03pm
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Engine bay , Firewall
Aluminium sheeting
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schipps
Sun March 8, 2009 2:03pm
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steeler
Sun March 8, 2009 4:12pm
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kitcarbp
Thu March 19, 2009 10:30am
Rating: 10
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500+ HP Engine Water Jacket Coolant Flow Requirements
This chart shows the linear relationship between the heat rejection (load) of the coolant and the required (calculated) coolant flow in the engine water jacket. It is determined for 3 different temp gradients of the engine inlet and outlet coolant temp. This engine example is from a 500+ horsepower supercharged gas engine assumed to have heat rejection up to maximum power (8,000 btu/min). Why do we care? If you cant keep engine temps under control at speed under load, you may have: 1) insufficient water flow, 2) undersized radiator, or 3) insufficient air flow through the radiator that needs to be addressed. This engine will require coolant flow in the lower part of the curve in street applications (low heat rejection), but for racing/track use this engine will require coolant flow rates towards the top of each curve. For older V8's pre-emissions, the common design target is to keep the radiator Inlet @ 190 F and outlet @ 180F or an average core temp of 185F at steady state conditions or the upper curve shown. Modern engines may use a little higher 195F-185F or rad core avg temp of 190F.
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DocDirk
Sun March 22, 2009 4:18pm
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jdean
Sun March 22, 2009 4:40pm
Rating: 10
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418 with Powerjection EFI
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jdean
Sun March 22, 2009 4:40pm
Rating: 10
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418 with Powerjection EFI
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jdean
Sun March 22, 2009 4:40pm
Rating: 10
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csx wnab
Mon March 23, 2009 5:03pm
Rating: 10
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csx wnab
Mon March 23, 2009 5:04pm
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kitcarbp
Wed March 25, 2009 11:28am
Rating: 10
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429_and_460_water_pump_flow
I learned that Edelbrock makes the water pump for the Ford Racing 460 Crate engines. This is part number M-8501-C460 or Edelbrock # 8866. The flow values were provided by Edelbrock via their TECH HOT LINE, I graphed them as a visual aid.
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rdc767
Fri March 27, 2009 4:42pm
Rating: 10
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rdc767
Fri March 27, 2009 4:42pm
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