Spring Description Manley 221423
Rated Install Height 1.75 Max Lift  Spring Rate Slope
Coil Bind Height 1.175 0.575 4.09
Rated Seat Pressure 115 Load Increase
Coil Bind Pressure 350 235
Spring Rate 409 408.6956522
Rocker Ratio 1.6 1.7 1.8 1.84 1.9
Engine Installed Height 1.75
Slope 4.086956522 6.539130435 6.947826087 7.356521739 7.52 7.765217391
Install Height PSI  @ Valve PSI @ Cam 1.6 PSI @ Cam 1.7 PSI @ Cam 1.8 PSI @ Cam 1.84 PSI @ Cam 1.9 Valve Lift Lobe Lift
1.80 94.56521739 151.3043478 160.7608696 170.2173913 174 179.673913
1.79 98.65217391 157.8434783 167.7086957 177.573913 181.52 187.4391304
1.78 102.7391304 164.3826087 174.6565217 184.9304348 189.04 195.2043478
1.77 106.826087 170.9217391 181.6043478 192.2869565 196.56 202.9695652
1.76 110.9130435 177.4608696 188.5521739 199.6434783 204.08 210.7347826
1.75 115 184 195.5 207 211.6 218.5 0.000 0.000
1.74 119.0869565 190.5391304 202.4478261 214.3565217 219.12 226.2652174 0.010 0.006
1.73 123.173913 197.0782609 209.3956522 221.7130435 226.64 234.0304348 0.020 0.013
1.72 127.2608696 203.6173913 216.3434783 229.0695652 234.16 241.7956522 0.030 0.019
1.71 131.3478261 210.1565217 223.2913043 236.426087 241.68 249.5608696 0.040 0.025
1.70 135.4347826 216.6956522 230.2391304 243.7826087 249.2 257.326087 0.050 0.031
1.69 139.5217391 223.2347826 237.1869565 251.1391304 256.72 265.0913043 0.060 0.038
1.68 143.6086957 229.773913 244.1347826 258.4956522 264.24 272.8565217 0.070 0.044
1.67 147.6956522 236.3130435 251.0826087 265.8521739 271.76 280.6217391 0.080 0.050
1.66 151.7826087 242.8521739 258.0304348 273.2086957 279.28 288.3869565 0.090 0.056
1.65 155.8695652 249.3913043 264.9782609 280.5652174 286.8 296.1521739 0.100 0.063
1.64 159.9565217 255.9304348 271.926087 287.9217391 294.32 303.9173913 0.110 0.069
1.63 164.0434783 262.4695652 278.873913 295.2782609 301.84 311.6826087 0.120 0.075
1.62 168.1304348 269.0086957 285.8217391 302.6347826 309.36 319.4478261 0.130 0.081
1.61 172.2173913 275.5478261 292.7695652 309.9913043 316.88 327.2130435 0.140 0.088
1.60 176.3043478 282.0869565 299.7173913 317.3478261 324.4 334.9782609 0.150 0.094
1.59 180.3913043 288.626087 306.6652174 324.7043478 331.92 342.7434783 0.160 0.100
1.58 184.4782609 295.1652174 313.6130435 332.0608696 339.44 350.5086957 0.170 0.106
1.57 188.5652174 301.7043478 320.5608696 339.4173913 346.96 358.273913 0.180 0.113
1.56 192.6521739 308.2434783 327.5086957 346.773913 354.48 366.0391304 0.190 0.119
1.55 196.7391304 314.7826087 334.4565217 354.1304348 362 373.8043478 0.200 0.125
1.54 200.826087 321.3217391 341.4043478 361.4869565 369.52 381.5695652 0.210 0.131
1.53 204.9130435 327.8608696 348.3521739 368.8434783 377.04 389.3347826 0.220 0.138
1.52 209 334.4 355.3 376.2 384.56 397.1 0.230 0.144
1.51 213.0869565 340.9391304 362.2478261 383.5565217 392.08 404.8652174 0.240 0.150
1.50 217.173913 347.4782609 369.1956522 390.9130435 399.6 412.6304348 0.250 0.156
1.49 221.2608696 354.0173913 376.1434783 398.2695652 407.12 420.3956522 0.260 0.163
1.48 225.3478261 360.5565217 383.0913043 405.626087 414.64 428.1608696 0.270 0.169
1.47 229.4347826 367.0956522 390.0391304 412.9826087 422.16 435.926087 0.280 0.175
1.46 233.5217391 373.6347826 396.9869565 420.3391304 429.68 443.6913043 0.290 0.181
1.45 237.6086957 380.173913 403.9347826 427.6956522 437.2 451.4565217 0.300 0.188
1.44 241.6956522 386.7130435 410.8826087 435.0521739 444.72 459.2217391 0.310 0.194
1.43 245.7826087 393.2521739 417.8304348 442.4086957 452.24 466.9869565 0.320 0.200
1.42 249.8695652 399.7913043 424.7782609 449.7652174 459.76 474.7521739 0.330 0.206
1.41 253.9565217 406.3304348 431.726087 457.1217391 467.28 482.5173913 0.340 0.213
1.40 258.0434783 412.8695652 438.673913 464.4782609 474.8 490.2826087 0.350 0.219
1.39 262.1304348 419.4086957 445.6217391 471.8347826 482.32 498.0478261 0.360 0.225
1.38 266.2173913 425.9478261 452.5695652 479.1913043 489.84 505.8130435 0.370 0.231
1.37 270.3043478 432.4869565 459.5173913 486.5478261 497.36 513.5782609 0.380 0.238
1.36 274.3913043 439.026087 466.4652174 493.9043478 504.88 521.3434783 0.390 0.244
1.35 278.4782609 445.5652174 473.4130435 501.2608696 512.4 529.1086957 0.400 0.250
1.34 282.5652174 452.1043478 480.3608696 508.6173913 519.92 536.873913 0.410 0.256
1.33 286.6521739 458.6434783 487.3086957 515.973913 527.44 544.6391304 0.420 0.263
1.32 290.7391304 465.1826087 494.2565217 523.3304348 534.96 552.4043478 0.430 0.269
1.31 294.826087 471.7217391 501.2043478 530.6869565 542.48 560.1695652 0.440 0.275
1.30 298.9130435 478.2608696 508.1521739 538.0434783 550 567.9347826 0.450 0.281
1.29 303 484.8 515.1 545.4 557.52 575.7 0.460 0.288
1.28 307.0869565 491.3391304 522.0478261 552.7565217 565.04 583.4652174 0.470 0.294
1.27 311.173913 497.8782609 528.9956522 560.1130435 572.56 591.2304348 0.480 0.300
1.26 315.2608696 504.4173913 535.9434783 567.4695652 580.08 598.9956522 0.490 0.306
1.25 319.3478261 510.9565217 542.8913043 574.826087 587.6 606.7608696 0.500 0.313
1.24 323.4347826 517.4956522 549.8391304 582.1826087 595.12 614.526087 0.510 0.319
1.23 327.5217391 524.0347826 556.7869565 589.5391304 602.64 622.2913043 0.520 0.325
1.22 331.6086957 530.573913 563.7347826 596.8956522 610.16 630.0565217 0.530 0.331
1.21 335.6956522 537.1130435 570.6826087 604.2521739 617.68 637.8217391 0.540 0.338
1.20 339.7826087 543.6521739 577.6304348 611.6086957 625.2 645.5869565 0.550 0.344
1.19 343.8695652 550.1913043 584.5782609 618.9652174 632.72 653.3521739 0.560 0.350
1.18 347.9565217 556.7304348 591.526087 626.3217391 640.24 661.1173913 0.570 0.356
1.17 352.0434783 563.2695652 598.473913 633.6782609 647.76 668.8826087 0.580 0.363
1.16 356.1304348 569.8086957 605.4217391 641.0347826 655.28 676.6478261 0.590 0.369
1.15 360.2173913 576.3478261 612.3695652 648.3913043 662.8 684.4130435 0.600 0.375