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SVT Shelby GT500
Liquid Cooled Kenne Bell Lines through the Engine Coolant System
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<blockquote data-quote="Bad Company" data-source="post: 15670066" data-attributes="member: 141815"><p>Robert......you don't understand what I'm saying.</p><p></p><p>A Cat engine uses a 7 lb radiator cap to control the coolant boiling temperature on the system. These cars use a 16 lb radiator cap for the same purpose. This pressure isn't what I'm talking about. </p><p></p><p>Think of your garden hose and the valve you open and close to get water out of it. The restriction is the hose bib/spigot.......... the other end of the hose is your low pressure point because it is open to the atmosphere. Open the valve and the water flows. This is an example of what I mean by pressure differential. </p><p></p><p>When you measure the water pump's pumping capability you install a pressure gauges on the degas hose at the engine's thermostat housing on a Cat engine, which is reading the water pressure the water pump is creating inside of the engine to establish water flow. The pressure at this point on a Cat engine should be a minimum of 15 psi or higher for satisfactory water flow throughput of coolant throughout the engine and its ability to cool be moving the water from one point to the other and using the thermostat as the restriction in flow to create the pressure differential between the suction side of the pump and the output side of the pump. The 15 psi measurement is higher than the radiator caps 7 lb rating.</p><p></p><p>I hope this explains what I'm trying to say in a manner where you can try to read a pressure differential and if this is why you're flow is low.</p></blockquote><p></p>
[QUOTE="Bad Company, post: 15670066, member: 141815"] Robert......you don't understand what I'm saying. A Cat engine uses a 7 lb radiator cap to control the coolant boiling temperature on the system. These cars use a 16 lb radiator cap for the same purpose. This pressure isn't what I'm talking about. Think of your garden hose and the valve you open and close to get water out of it. The restriction is the hose bib/spigot.......... the other end of the hose is your low pressure point because it is open to the atmosphere. Open the valve and the water flows. This is an example of what I mean by pressure differential. When you measure the water pump's pumping capability you install a pressure gauges on the degas hose at the engine's thermostat housing on a Cat engine, which is reading the water pressure the water pump is creating inside of the engine to establish water flow. The pressure at this point on a Cat engine should be a minimum of 15 psi or higher for satisfactory water flow throughput of coolant throughout the engine and its ability to cool be moving the water from one point to the other and using the thermostat as the restriction in flow to create the pressure differential between the suction side of the pump and the output side of the pump. The 15 psi measurement is higher than the radiator caps 7 lb rating. I hope this explains what I'm trying to say in a manner where you can try to read a pressure differential and if this is why you're flow is low. [/QUOTE]
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SVT Shelby GT500
Liquid Cooled Kenne Bell Lines through the Engine Coolant System
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