Part# 2060084 – Power Flow 1650psi Power Steering Pump with Pulley

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Maximum pump RPM is 7,000 RPM. Do not drive the pump beyond 7,000 RPMs. If you are using this pump on a custom build, you will need to calculate the correct pump pulley size to ensure you do not exceed 7,000 RPMs on the pump. The formula to calculate this is as follows:

𝑅𝑃𝑀-𝐸×𝐷-𝐸=𝑅𝑃𝑀-𝑃×𝐷-𝑃

Where:

𝑅𝑃𝑀-𝐸 = π‘€π‘Žπ‘₯π‘–π‘šπ‘’π‘š 𝑅𝑃𝑀'𝑠 π‘¦π‘œπ‘’ 𝑀𝑖𝑙𝑙 π‘Ÿπ‘’π‘› π‘¦π‘œπ‘’π‘Ÿ 𝑒𝑛𝑔𝑖𝑛𝑒 π‘Žπ‘‘ 𝐷-𝐸 = π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ π‘œπ‘“ 𝑒𝑛𝑔𝑖𝑛𝑒 π‘π‘Ÿπ‘Žπ‘›π‘˜ 𝑝𝑒𝑙𝑙𝑒𝑦 𝑅𝑃𝑀-𝑃 = π‘ƒπ‘’π‘šπ‘ 𝑅𝑃𝑀'𝑠 𝐷-𝑃 = π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘’π‘šπ‘ 𝑝𝑒𝑙𝑙𝑒𝑦.

Example: I have a LS engine I will run up to 6,000 RPM. The crank pulley diameter on the engine is 7-1/2”. What diameter pulley do I need to use on my Power Flowβ„’ pump to make sure it doesn’t spin faster than 7,000 rpm?

π·π‘–π‘Žπ‘šπ‘’π‘‘π‘’π‘Ÿ π‘œπ‘“ π‘π‘’π‘šπ‘ 𝑝𝑒𝑙𝑙𝑒𝑦 𝐷-𝑃 = (6,000 Γ— 7.5) Γ· 7,000 = 6.42 π‘–π‘›π‘β„Žπ‘’π‘ .

Since 6.42” diameter pump pulleys are not readily available, you would need to move to the next largest diameter, which would be 6-1/2”.

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