Bulletproof cooling system
(→Water pumps: electric vs. mechanical) |
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==Water pumps: electric vs. mechanical== | ==Water pumps: electric vs. mechanical== | ||
| − | Electric water pumps are constant flow pumps that push X amount of gals of water per minute, no matter what the rpm of the engine is. Mechanical water pumps are variable speed pumps which have decreased flow at idle and increased flow at higher speeds WITH LIMITATIONS. The limitations are that water will slip and cause air cavitation. Mechanical pumps will only operate while the engine is running, but with electric pumps, operation is user selectable. | + | Electric water pumps are constant flow pumps that push X amount of gals of water per minute, no matter what the rpm of the engine is. |
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| + | Mechanical water pumps are variable speed pumps which have decreased flow at idle and increased flow at higher speeds WITH LIMITATIONS. The limitations are that water will slip and cause air cavitation. Mechanical pumps will only operate while the engine is running, but with electric pumps, operation is user selectable. | ||
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| + | On a SBC for instance, the coolant flow of the OEM mechanical water pump is around 10-12 gall./min. per 1000 RPM. | ||
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| + | The "usual" drive ratio of a SBC mechanical water pump is between 1:1 and 1.3:1, overdriven. | ||
==Serpentine cross-flow radiators== | ==Serpentine cross-flow radiators== | ||
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