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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kitcarbp
Mon April 13, 2009 6:36am
Rating: 10
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Modified Lower Radiator Hose
Here is the modified lower hose to keep the surge tank on the LOW pressure side (water pump inlet) of the system. Not the most elegant but very functional. I found a glass filled nylon "T" taht is 1.75" and has a 1.0" fill line for the surge tank.
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DocDirk
Sat April 25, 2009 1:13pm
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Closeup of painted grill with oil cooler
Oil cooler is cylindrical 15" finned at the top of the radiator (in front of it)
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DAVID GAGNARD
Mon June 1, 2009 11:08am
Rating: 10
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jdean
Sun June 7, 2009 10:05am
Rating: 10
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jdean
Sun June 7, 2009 10:05am
Rating: 10
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jdean
Thu June 18, 2009 2:08pm
Rating: 10
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jdean
Thu June 18, 2009 2:08pm
Rating: 10
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PHM
Fri June 19, 2009 6:24am
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Mike's Cobra
Custom Billet Radiator Cap I made and Custom Oil breather
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iwantacobra427
Mon June 22, 2009 8:43pm
Rating: 10
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rokndad
Thu July 16, 2009 12:40pm
Rating: 10
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Fresh_Air_Intake_Original_CSX_3000
Fresh Air Intake at Radiator Orig CSX 3000
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Jcmrant
Tue July 28, 2009 5:52pm
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Jcmrant
Tue July 28, 2009 5:52pm
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vector1
Tue August 4, 2009 5:13pm
Rating: 10
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radiator_shroud_001_Small_
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vector1
Tue August 4, 2009 5:14pm
Rating: 10
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radiator_shroud_002_Small_
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