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| techtalk:ref:oil22p [2022/06/01 00:26] – [1977-Present Gerotor Oil Pump Capacities] hippysmack | techtalk:ref:oil22p [2024/01/19 15:05] (current) – hippysmack | ||
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| ====== 1977-Present Gerotor Oil Pump Capacities ====== | ====== 1977-Present Gerotor Oil Pump Capacities ====== | ||
| - | The charts below are based on testing done by Hippysmack of the XLFORUM ((http://xlforum.net/ | + | ^{{techtalk: |
| - | Overall oil pump volume was calculated by measuring the volume of one tooth cavity in used oil pumps and calculating volume against | + | | 1977-Up Sportster Oil Pump Volume in (US) Gallons per Minute (GPM) |
| - | The figures take into account that the oil pump turns 1/2 the speed of the engine. \\ | + | |Year Model \\ Oil Pump →| 1977-1985 |
| - | [[techtalk: | + | |Engine \\ RPM ↓|Feed |
| + | |**1000**|.121|.346|.185|.346|.185|.346|.185|.485|.180|.782| | ||
| + | |**1500**|.182|.519|.277|.519|.277|.519|.277|.727|.269|1.173| **750**| | ||
| + | |**2000**|.242|.692|.370|.692|.370|.692|.370|.970|.359|1.564| | ||
| + | |**2500**|.303|.866|.462|.866|.462|.866|.462|1.212|.449|1.955| | ||
| + | |**3000**|.364|1.039|.555|1.039|.555|1.039|.555|1.454|.539|2.346| **1500**| | ||
| + | |**3500**|.424|1.212|.647|1.212|.647|1.212|.647|1.697|.629|2.737| | ||
| + | |**4000**|.485|1.385|.740|1.385|.740|1.385|.740|1.940|.719|3.128| | ||
| + | |**4500**|.545|1.558|.832|1.558|.832|1.558|.832|2.182|.808|3.519| | ||
| + | |**5000**|.606|1.732|.925|1.732|.925|1.732|.925|2.424|.898|3.910| | ||
| + | |**5500**|.667|1.905|1.017|1.905|1.017|1.905|1.017|2.667|.988|4.301| | ||
| + | |**6000**|.727|2.078|1.110|2.078|1.110|2.078|1.110|2.909|1.078|4.692| | ||
| + | |**6500**|.788|2.251|1.202|2.251|1.202|2.251|1.202|3.152|1.132|5.083| | ||
| + | |**7000**|.845|2.424|1.294|2.424|1.294|2.424|1.294|3.394|1.257|5.474| | ||
| + | |**7500**|.909|2.597|1.387|2.597|1.387|2.597|1.387|3.636|1.347|5.865| | ||
| - | **NOTE**: The figures in the chart represent 100% pump efficiency and DO NOT take into account any amount of internal pump leakage. | + | \\ |
| - | Internal leakage (or slippage) is an inherent condition of these pumps and WILL affect total volume output. | + | The chart above is based on testing done by, Hippysmack, of the XLFORUM ((https:// |
| - | Real world GPM will be lower than what is listed | + | Internal leakage (or slippage) is an inherent condition of these pumps and WILL affect total volume output. Real world GPM will be lower than what is listed |
| + | **Figures used for chart**: \\ | ||
| + | Volume (ci³) of 1 tooth cavity x volume (ci³) of 8 teeth (per 1 pump revolution) x RPM / 231 = GPM \\ | ||
| + | **Note**: Pump speed is on the right side of the chart (do not calculate engine speed). \\ | ||
| + | Engine speed is given above but not used for calculations. \\ | ||
| + | |||
| + | * 1977-1985 Feed Gerotor Volume per 1 pump revolution: 0.056 ci³ x RPM / 231 | ||
| + | * 1986-2006 Feed Gerotor Volume per 1 pump revolution: 0.0854332417326252 ci³ x RPM / 231 | ||
| + | * 2007-Present Feed Gerotor Volume per 1 pump revolution: | ||
| + | * 1977-1997 Return Gerotor Volume per 1 pump revolution: 0.16 ci³ x RPM / 231 | ||
| + | * 1998-2006 Return Gerotor Volume per 1 pump revolution: 0.224 ci³ x RPM / 231 | ||
| + | * 2007-Present Return Gerotor Volume per 1 pump revolution: 0.3612605650408151 ci³ x RPM / 231 | ||
| - | | 1977-1985 Sportster Oil Pump Volume in (US) Gallons per Minute (GPM) |||||||||||| | ||
| - | |Year Model \\ Oil Pump →| 1977-1985 | ||
| - | |Engine \\ RPM ↓|Feed \\ Gears|Return \\ Gears|Feed \\ Gears|Return \\ Gears|Feed \\ Gears|Return \\ Gears|Feed \\ Gears|Return \\ Gears|Feed \\ Gears|Return \\ Gears|:::| | ||
| - | |1000|.121|.346|.185|.346|.185|.346|.185|.485| | ||
| - | |1500|.182|.519|.277|.519|.277|.519|.277|.727| | ||
| - | |2000|.242|.692|.370|.692|.370|.692|.370|.970| | ||
| - | |2500|.303|.866|.462|.866|.462|.866|.462|1.212| | ||
| - | |3000|.364|1.039|.555|1.039|.555|1.039|.555|1.454| | ||
| - | |3500|.424|1.212|.647|1.212|.647|1.212|.647|1.697| | ||
| - | |4000|.485|1.385|.740|1.385|.740|1.385|.740|1.940| | ||
| - | |4500|.545|1.558|.832|1.558|.832|1.558|.832|2.182| | ||
| - | |5000|.606|1.732|.925|1.732|.925|1.732|.925|2.424| | ||
| - | |5500|.667|1.905|1.017|1.905|1.017|1.905|1.017|2.667| | ||
| - | |6000|.727|2.078|1.110|2.078|1.110|2.078|1.110|2.909| | ||
| - | |6500|.788|2.251|1.202|2.251|1.202|2.251|1.202|3.152| | ||
| - | |7000|.845|2.424|1.294|2.424|1.294|2.424|1.294|3.394| | ||
| - | |7500|.909|2.597|1.387|2.597|1.387|2.597|1.387|3.636| | ||
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