| Subject: volumetric efficiency |
| From: ACRE |
| Date: 3/31/2004, 9:40 AM |
Perry Casson wrote:
>4 stroke centric world it's call 1.3L engine. Have I been living a lie all this time?
It appears I have been living a lie all this time, a rotor displaces 654cc and VE's in the not so magical .74 - .96 range seem about where the renesis operates as per the attached spreadsheet. I think the "350 Chev" engine should be henceforth be know as the "Chev 175" in my rotary centric world. Perry Casson
Perry, In the future please send these as HTML files. Paul Lamar The AirCraft Rotary Engine NewsLetter. Powered by Linux. ACRE NL web site. http://home.earthlink.net/~rotaryeng/ Copyright 1998-2003 All world wide rights reserved.
| RPM | Mass Flow (kL) | CFM (VE 1.0) | Lbs/hr (VE 1.0) | Fuel Burn GPH | HP @ .47 BFC | Rated HP | VE from HP | CFM From VE | Rate Torque (Nm) | Torque ft-lbs |
| 2000 | 2.62 | 92.59 | 416.67 | 5.07 | 64.71 | 47.78 | 0.74 | 68.36 | 170 | 125.46 |
| 2500 | 2.18 | 115.74 | 520.83 | 6.34 | 80.89 | 66.75 | 0.83 | 95.51 | 190 | 140.22 |
| 3000 | 2.62 | 138.89 | 625 | 7.6 | 97.06 | 81.36 | 0.84 | 116.42 | 193 | 142.43 |
| 3500 | 3.06 | 162.04 | 729.17 | 8.87 | 113.24 | 98.85 | 0.87 | 141.45 | 201 | 148.34 |
| 4000 | 3.49 | 185.19 | 833.33 | 10.14 | 129.42 | 115.22 | 0.89 | 164.87 | 205 | 151.29 |
| 4500 | 3.93 | 208.33 | 937.5 | 11.41 | 145.6 | 134.69 | 0.93 | 192.72 | 213 | 157.19 |
| 5000 | 4.37 | 231.48 | 1041.67 | 12.67 | 161.77 | 155.97 | 0.96 | 223.18 | 222 | 163.84 |
| 5500 | 4.8 | 254.63 | 1145.83 | 13.94 | 177.95 | 167.71 | 0.94 | 239.97 | 217 | 160.15 |
| 6000 | 5.24 | 277.78 | 1250 | 15.21 | 194.13 | 178.74 | 0.92 | 255.76 | 212 | 156.46 |
| 6500 | 5.68 | 300.93 | 1354.17 | 16.47 | 210.31 | 192.72 | 0.92 | 275.76 | 211 | 155.72 |
| 7000 | 6.11 | 324.07 | 1458.33 | 17.74 | 226.48 | 206.56 | 0.91 | 295.57 | 210 | 154.98 |
| 7500 | 6.55 | 347.22 | 1562.5 | 19.01 | 242.66 | 205.51 | 0.85 | 294.06 | 195 | 143.91 |
| 8000 | 6.99 | 370.37 | 1666.67 | 20.28 | 258.84 | 0 | ||||
| 8500 | 7.42 | 393.52 | 1770.83 | 21.54 | 275.02 | 0 | ||||
| 9000 | 7.86 | 416.67 | 1875 | 22.81 | 291.19 | 0 |
| rpm | Prop | torque - Nm | Torque Ft-lbs | Prop Torque ft-lbs | Horse power |
| 0 | 0 | 0 | 0 | 0 | 0 |
| 500 | 175.44 | 0 | 0 | 0 | 0 |
| 1000 | 350.88 | 100 | 73.8 | 0 | 14.05 |
| 1500 | 526.32 | 152 | 112.18 | 210.33 | 32.04 |
| 2000 | 701.75 | 170 | 125.46 | 319.7 | 47.78 |
| 2500 | 877.19 | 190 | 140.22 | 357.56 | 66.75 |
| 3000 | 1052.63 | 193 | 142.43 | 399.63 | 81.36 |
| 3500 | 1228.07 | 201 | 148.34 | 405.94 | 98.85 |
| 4000 | 1403.51 | 205 | 151.29 | 422.76 | 115.22 |
| 4500 | 1578.95 | 213 | 157.19 | 431.18 | 134.69 |
| 5000 | 1754.39 | 222 | 163.84 | 448 | 155.97 |
| 5500 | 1929.82 | 217 | 160.15 | 466.93 | 167.71 |
| 6000 | 2105.26 | 212 | 156.46 | 456.42 | 178.74 |
| 6500 | 2280.7 | 211 | 155.72 | 445.9 | 192.72 |
| 7000 | 2456.14 | 210 | 154.98 | 443.8 | 206.56 |
| 7500 | 2631.58 | 195 | 143.91 | 441.69 | 205.51 |