car engine dynamics

7/29/2019 Car Engine Dynamics

1/52

Displacement:

Bore 98.00 [mm] 3.858 [in]

Stroke 82.00 [mm] 3.228 [in]Cylinders 4

Displacement: 2474.1 [cm ] 150.98 [cui]

Over-square ratio 1.20 :1

Bottom end geometry

Deckheight 208.00 [mm] 8.189 [in]

Rod length 142.00 [mm] 5.591 [in]

Piston cr-height 28.00 [mm] 1.102 [in]

Deck in (+) deck out (-) -3.00 [mm] -0.118 [in]

Non-zero deck volume -22.63 [cm ] -1.38 [cui]

Rod length / Stroke ratio 1.732 :1

Head flycut depth 3.00 [mm] 0.118 [in]Head flycut 98.50 [mm] 3.878 [in]

Head flycut volume 22.86 [cm ] 1.40 [cui]

Head gasket volume

Dont mess with the fields in gray, thats wher


2/52

Thickness compressed 1.00 [mm] 0.039 [in]

Inner diameter 98.50 [mm] 3.878 [in]

Volume: 7.62 [cm ] 0.47 [cui]

Squish band thickness 1.00 [mm] 0.039 [in]

Compression calc

Dome/valve relief volume 4.00 [cm3

] 0.24 [cui]Combustion chamber vol. 42.00 [cm

3] 2.56 [cui]

Compression ratio 12.49 :1


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Dynamics & statics Head & valves

Planned cutoff/dimensioning RPM 9200 [RPM] Peak power RPM 8500 [RPM]

Crank angle, ATDC 4 [] Min. int. cross sec. area 1387 [mm ]Mean piston velocity 25.1 [m/s] Round tube eqv. 42.0 [mm]

Instantaneous piston velocity. 3.55 [m/s] Int. valve stem 9.00 [mm]

Max. piston velocity. 41.11 [m/s] Int. valve throat 43.0 [mm]

@ Crank position ATDC 73.89 [] Min. intake valve 47.8 [mm]

Max. piston acceleration. (@TDC) 49043 [m/s ] Int valve lift 15.3 [mm]

4999.3 [Gs] Exh/int. flow ratio 70.0%

Instantaneous acceleration 48844 [m/s2] Min. exh. cross sec. area 971 [mm

2]

4979.0 [Gs] Round tube eqv. 35.2 [mm]

Piston position in mms from TDC 0.07 [mm] Exh. valve stem 9.00 [mm]

Exh. valve throath dia 36.3 [mm]

Optimum stroke calc Min. exh valve 40.3 [mm]Rod length / Stroke ratio 1.730 :1 Exh. valve lift 12.9 [mm]

Piston cr-height 28.00 [mm] Suggested venturi size 44 [mm]

Deck in (+) deck out (-) -3.00 [mm]

e youll find info!


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Stroke 82.06 [mm] Power potential

Rod length 141.97 [mm] Nat. aspirated @ 100% VE 280 [hp]

Other peak power VE 107% [%]

-> Nat. Aspirated power 300 [hp]

Cut diameter 74 [mm]

Cut depth 5.5 [mm]Reverse dome volume 23.7 [cm

3] Int. Valve diameter 49.28 [mm]

Int.->cyl. Clearance 2.86 [mm]

Exh. Valve diameter 40.64 [mm]

Exh.->cyl clearance 4.18 [mm]Int.->Exh. valve clearance 1.04 [mm]

Reverse dome help calculator

CIH valve / bore clearance


5/52

141.7 Hz

Other valve 49.28 [mm] @ Corrected lift 14.8 [mm]

Suggested valve 52 [mm] Suggested int. valve lift 14.0 [mm]

Other valve 40.64 [mm] @ Corrected lift 12.8 [mm]Suggested valve 44 [mm] Suggested exh. valve lift 11.8 [mm]

Exhaust valve corrections

Intake valve corrections


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7/52

Crank angle [ATDC] Piston positon from TDC. Piston velocity. Piston acceleration.0 0.00 0.00 49043

1 0.00 0.89 49031

2 0.02 1.78 48993

3 0.04 2.66 48931

4 0.07 3.55 48844

5 0.11 4.43 48732

6 0.16 5.32 48595

7 0.22 6.19 48433

8 0.28 7.07 48247

9 0.36 7.94 48037

10 0.44 8.81 47802

11 0.54 9.68 4754412 0.64 10.54 47262

13 0.75 11.39 46956

14 0.87 12.24 46627

15 1.00 13.08 46274

16 1.14 13.92 45899

17 1.28 14.75 45502

18 1.44 15.57 45082

19 1.60 16.39 44641

20 1.78 17.19 44178

21 1.96 17.99 43693

22 2.15 18.78 43188

23 2.35 19.56 4266324 2.56 20.33 42118

25 2.78 21.09 41553

26 3.01 21.85 40969

27 3.24 22.59 40366

28 3.49 23.32 39745

29 3.74 24.03 39107

30 4.01 24.74 38451

31 4.28 25.44 37778

32 4.56 26.12 37090

33 4.85 26.79 36385

34 5.15 27.45 35666

35 5.45 28.09 34931

36 5.77 28.72 3418337 6.10 29.34 33421

38 6.43 29.94 32646

39 6.77 30.53 31859

40 7.13 31.11 31060

41 7.49 31.67 30250

42 7.86 32.21 29429

43 8.23 32.74 28598

44 8.62 33.26 27758


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45 9.02 33.76 26909

46 9.42 34.24 26052

47 9.84 34.71 25187

48 10.26 35.16 24316

49 10.69 35.60 23437

50 11.13 36.02 22554

51 11.58 36.42 2166552 12.03 36.81 20771

53 12.50 37.18 19874

54 12.97 37.53 18973

55 13.45 37.87 18070

56 13.94 38.19 17164

57 14.44 38.50 16257

58 14.95 38.78 15350

59 15.47 39.06 14442

60 15.99 39.31 13534

61 16.52 39.55 12627

62 17.06 39.77 11722

63 17.61 39.97 1081864 18.16 40.16 9918

65 18.72 40.33 9020

66 19.29 40.48 8126

67 19.87 40.62 7237

68 20.46 40.74 6352

69 21.05 40.84 5472

70 21.65 40.93 4599

71 22.26 41.00 3731

72 22.87 41.05 2870

73 23.49 41.09 2017

74 24.12 41.12 1171

75 24.75 41.12 334

76 25.39 41.12 -49577 26.04 41.09 -1315

78 26.69 41.05 -2126

79 27.35 41.00 -2926

80 28.02 40.93 -3717

81 28.69 40.85 -4497

82 29.37 40.76 -5266

83 30.05 40.65 -6024

84 30.73 40.52 -6770

85 31.43 40.38 -7504

86 32.12 40.23 -8226

87 32.82 40.07 -8936

88 33.53 39.89 -963389 34.24 39.70 -10317

90 34.95 39.50 -10988

91 35.67 39.29 -11645

92 36.39 39.06 -12289

93 37.11 38.82 -12919

94 37.84 38.58 -13536

95 38.57 38.32 -14138

96 39.31 38.05 -14726


9/52

97 40.04 37.77 -15299

98 40.78 37.48 -15858

99 41.52 37.18 -16403

100 42.26 36.87 -16933

101 43.00 36.55 -17449

102 43.74 36.22 -17950

103 44.49 35.88 -18436104 45.23 35.54 -18908

105 45.98 35.19 -19365

106 46.72 34.82 -19808

107 47.47 34.46 -20236

108 48.21 34.08 -20649

109 48.95 33.70 -21048

110 49.70 33.31 -21433

111 50.44 32.91 -21803

112 51.18 32.51 -22160

113 51.91 32.11 -22502

114 52.65 31.69 -22831

115 53.38 31.27 -23146116 54.11 30.85 -23447

117 54.83 30.42 -23735

118 55.56 29.99 -24010

119 56.27 29.55 -24272

120 56.99 29.11 -24522

121 57.70 28.66 -24758

122 58.40 28.21 -24983

123 59.10 27.76 -25196

124 59.80 27.30 -25396

125 60.49 26.84 -25586

126 61.17 26.38 -25764

127 61.85 25.91 -25931

128 62.52 25.44 -26087129 63.18 24.97 -26234

130 63.84 24.50 -26370

131 64.49 24.03 -26496

132 65.13 23.55 -26613

133 65.76 23.07 -26720

134 66.38 22.59 -26819

135 67.00 22.11 -26909

136 67.61 21.62 -26991

137 68.21 21.14 -27066

138 68.79 20.65 -27132

139 69.37 20.16 -27192

140 69.94 19.68 -27244141 70.50 19.19 -27290

142 71.05 18.70 -27330

143 71.58 18.21 -27364

144 72.11 17.71 -27392

145 72.62 17.22 -27415

146 73.13 16.73 -27433

147 73.62 16.24 -27447

148 74.10 15.75 -27456


10/52

149 74.56 15.25 -27461

150 75.02 14.76 -27463

151 75.46 14.27 -27461

152 75.89 13.77 -27457

153 76.31 13.28 -27449

154 76.71 12.79 -27439

155 77.10 12.29 -27427156 77.47 11.80 -27413

157 77.83 11.31 -27397

158 78.18 10.81 -27380

159 78.51 10.32 -27362

160 78.83 9.83 -27343

161 79.14 9.33 -27324

162 79.43 8.84 -27304

163 79.70 8.35 -27283

164 79.96 7.86 -27263

165 80.21 7.36 -27243

166 80.44 6.87 -27223

167 80.65 6.38 -27204168 80.85 5.89 -27186

169 81.03 5.40 -27169

170 81.20 4.91 -27152

171 81.35 4.42 -27137

172 81.49 3.92 -27123

173 81.61 3.43 -27110

174 81.71 2.94 -27099

175 81.80 2.45 -27090

176 81.87 1.96 -27082

177 81.93 1.47 -27076

178 81.97 0.98 -27071

179 81.99 0.49 -27068

180 82.00 0.00 -27068181 81.99 -0.49 -27068

182 81.97 -0.98 -27071

183 81.93 -1.47 -27076

184 81.87 -1.96 -27082

185 81.80 -2.45 -27090

186 81.71 -2.94 -27099

187 81.61 -3.43 -27110

188 81.49 -3.92 -27123

189 81.35 -4.42 -27137

190 81.20 -4.91 -27152

191 81.03 -5.40 -27169

192 80.85 -5.89 -27186193 80.65 -6.38 -27204

194 80.44 -6.87 -27223

195 80.21 -7.36 -27243

196 79.96 -7.86 -27263

197 79.70 -8.35 -27283

198 79.43 -8.84 -27304

199 79.14 -9.33 -27324

200 78.83 -9.83 -27343


11/52

201 78.51 -10.32 -27362

202 78.18 -10.81 -27380

203 77.83 -11.31 -27397

204 77.47 -11.80 -27413

205 77.10 -12.29 -27427

206 76.71 -12.79 -27439

207 76.31 -13.28 -27449208 75.89 -13.77 -27457

209 75.46 -14.27 -27461

210 75.02 -14.76 -27463

211 74.56 -15.25 -27461

212 74.10 -15.75 -27456

213 73.62 -16.24 -27447

214 73.13 -16.73 -27433

215 72.62 -17.22 -27415

216 72.11 -17.71 -27392

217 71.58 -18.21 -27364

218 71.05 -18.70 -27330

219 70.50 -19.19 -27290220 69.94 -19.68 -27244

221 69.37 -20.16 -27192

222 68.79 -20.65 -27132

223 68.21 -21.14 -27066

224 67.61 -21.62 -26991

225 67.00 -22.11 -26909

226 66.38 -22.59 -26819

227 65.76 -23.07 -26720

228 65.13 -23.55 -26613

229 64.49 -24.03 -26496

230 63.84 -24.50 -26370

231 63.18 -24.97 -26234

232 62.52 -25.44 -26087233 61.85 -25.91 -25931

234 61.17 -26.38 -25764

235 60.49 -26.84 -25586

236 59.80 -27.30 -25396

237 59.10 -27.76 -25196

238 58.40 -28.21 -24983

239 57.70 -28.66 -24758

240 56.99 -29.11 -24522

241 56.27 -29.55 -24272

242 55.56 -29.99 -24010

243 54.83 -30.42 -23735

244 54.11 -30.85 -23447245 53.38 -31.27 -23146

246 52.65 -31.69 -22831

247 51.91 -32.11 -22502

248 51.18 -32.51 -22160

249 50.44 -32.91 -21803

250 49.70 -33.31 -21433

251 48.95 -33.70 -21048

252 48.21 -34.08 -20649


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253 47.47 -34.46 -20236

254 46.72 -34.82 -19808

255 45.98 -35.19 -19365

256 45.23 -35.54 -18908

257 44.49 -35.88 -18436

258 43.74 -36.22 -17950

259 43.00 -36.55 -17449260 42.26 -36.87 -16933

261 41.52 -37.18 -16403

262 40.78 -37.48 -15858

263 40.04 -37.77 -15299

264 39.31 -38.05 -14726

265 38.57 -38.32 -14138

266 37.84 -38.58 -13536

267 37.11 -38.82 -12919

268 36.39 -39.06 -12289

269 35.67 -39.29 -11645

270 34.95 -39.50 -10988

271 34.24 -39.70 -10317272 33.53 -39.89 -9633

273 32.82 -40.07 -8936

274 32.12 -40.23 -8226

275 31.43 -40.38 -7504

276 30.73 -40.52 -6770

277 30.05 -40.65 -6024

278 29.37 -40.76 -5266

279 28.69 -40.85 -4497

280 28.02 -40.93 -3717

281 27.35 -41.00 -2926

282 26.69 -41.05 -2126

283 26.04 -41.09 -1315

284 25.39 -41.12 -495285 24.75 -41.12 334

286 24.12 -41.12 1171

287 23.49 -41.09 2017

288 22.87 -41.05 2870

289 22.26 -41.00 3731

290 21.65 -40.93 4599

291 21.05 -40.84 5472

292 20.46 -40.74 6352

293 19.87 -40.62 7237

294 19.29 -40.48 8126

295 18.72 -40.33 9020

296 18.16 -40.16 9918297 17.61 -39.97 10818

298 17.06 -39.77 11722

299 16.52 -39.55 12627

300 15.99 -39.31 13534

301 15.47 -39.06 14442

302 14.95 -38.78 15350

303 14.44 -38.50 16257

304 13.94 -38.19 17164


13/52

305 13.45 -37.87 18070

306 12.97 -37.53 18973

307 12.50 -37.18 19874

308 12.03 -36.81 20771

309 11.58 -36.42 21665

310 11.13 -36.02 22554

311 10.69 -35.60 23437312 10.26 -35.16 24316

313 9.84 -34.71 25187

314 9.42 -34.24 26052

315 9.02 -33.76 26909

316 8.62 -33.26 27758

317 8.23 -32.74 28598

318 7.86 -32.21 29429

319 7.49 -31.67 30250

320 7.13 -31.11 31060

321 6.77 -30.53 31859

322 6.43 -29.94 32646

323 6.10 -29.34 33421324 5.77 -28.72 34183

325 5.45 -28.09 34931

326 5.15 -27.45 35666

327 4.85 -26.79 36385

328 4.56 -26.12 37090

329 4.28 -25.44 37778

330 4.01 -24.74 38451

331 3.74 -24.03 39107

332 3.49 -23.32 39745

333 3.24 -22.59 40366

334 3.01 -21.85 40969

335 2.78 -21.09 41553

336 2.56 -20.33 42118337 2.35 -19.56 42663

338 2.15 -18.78 43188

339 1.96 -17.99 43693

340 1.78 -17.19 44178

341 1.60 -16.39 44641

342 1.44 -15.57 45082

343 1.28 -14.75 45502

344 1.14 -13.92 45899

345 1.00 -13.08 46274

346 0.87 -12.24 46627

347 0.75 -11.39 46956

348 0.64 -10.54 47262349 0.54 -9.68 47544

350 0.44 -8.81 47802

351 0.36 -7.94 48037

352 0.28 -7.07 48247

353 0.22 -6.19 48433

354 0.16 -5.32 48595

355 0.11 -4.43 48732

356 0.07 -3.55 48844


14/52

357 0.04 -2.66 48931

358 0.02 -1.78 48993

359 0.00 -0.89 49031

360 0.00 0.00 49043


15/52

Stroke 85 [mm]

Connecting rod length 134 [mm]

RPM 9200

Ref. piston pos. Ref. piston velocity. Ref. piston acc.0.00 0.00 51959

0.00 0.94 51945

0.02 1.88 51905

0.04 2.82 51837

0.07 3.76 51741

0.11 4.70 51619

0.16 5.63 51470

0.22 6.56 51293

0.28 7.49 51091

0.36 8.41 50861

0.44 9.33 50605

0.54 10.25 503230.64 11.16 50015

0.75 12.06 49682

0.87 12.96 49323

1.00 13.86 48939

1.13 14.74 48530

1.28 15.62 48096

1.43 16.49 47639

1.60 17.35 47158

1.77 18.20 46653

1.95 19.05 46125

2.15 19.88 45575

2.35 20.71 450032.55 21.52 44409

2.77 22.32 43794

3.00 23.12 43158

3.24 23.90 42502

3.48 24.67 41827

3.74 25.42 41132

4.00 26.17 40418

4.27 26.90 39687

4.55 27.62 38938

4.84 28.32 38172

5.14 29.01 37390

5.45 29.69 36593

5.77 30.35 357806.09 31.00 34953

6.43 31.63 34112

6.77 32.25 33258

7.13 32.85 32391

7.49 33.44 31513

7.86 34.01 30623

8.25 34.56 29723

8.64 35.10 28813

Reference engine concept data


16/52

9.03 35.62 27894

9.44 36.12 26966

9.86 36.60 26031

10.29 37.07 25088

10.72 37.52 24139

11.17 37.96 23184

11.62 38.37 2222412.08 38.77 21260

12.55 39.15 20292

13.03 39.51 19321

13.52 39.86 18347

14.02 40.19 17372

14.53 40.49 16396

15.04 40.78 15419

15.56 41.05 14443

16.10 41.31 13468

16.64 41.54 12495

17.19 41.76 11523

17.74 41.96 1055518.31 42.14 9590

18.88 42.30 8629

19.47 42.45 7673

20.06 42.57 6722

20.65 42.68 5777

21.26 42.77 4839

21.87 42.85 3908

22.50 42.91 2984

23.13 42.94 2068

23.76 42.97 1161

24.41 42.97 263

25.06 42.96 -625

25.72 42.93 -150426.38 42.89 -2371

27.05 42.83 -3228

27.73 42.75 -4073

28.42 42.66 -4907

29.11 42.55 -5728

29.80 42.43 -6537

30.51 42.30 -7332

31.22 42.14 -8115

31.93 41.98 -8883

32.65 41.80 -9638

33.38 41.60 -10378

34.11 41.40 -1110434.84 41.18 -11815

35.58 40.95 -12511

36.33 40.70 -13192

37.07 40.44 -13858

37.83 40.17 -14507

38.58 39.89 -15141

39.34 39.60 -15759

40.10 39.30 -16361


17/52

40.87 38.99 -16947

41.63 38.66 -17517

42.40 38.33 -18070

43.18 37.99 -18607

43.95 37.63 -19127

44.72 37.27 -19631

45.50 36.90 -2011946.28 36.53 -20590

47.06 36.14 -21045

47.84 35.75 -21484

48.61 35.35 -21906

49.39 34.94 -22312

50.17 34.52 -22702

50.95 34.10 -23076

51.72 33.68 -23435

52.50 33.24 -23777

53.27 32.81 -24105

54.04 32.36 -24417

54.81 31.92 -2471355.57 31.46 -24996

56.33 31.01 -25263

57.09 30.55 -25516

57.85 30.08 -25755

58.60 29.61 -25980

59.34 29.14 -26191

60.08 28.66 -26389

60.82 28.19 -26574

61.55 27.71 -26746

62.28 27.22 -26905

62.99 26.74 -27053

63.71 26.25 -27189

64.41 25.76 -2731365.11 25.27 -27427

65.80 24.77 -27529

66.49 24.28 -27621

67.16 23.78 -27703

67.83 23.29 -27776

68.49 22.79 -27839

69.14 22.29 -27894

69.78 21.79 -27940

70.41 21.29 -27977

71.03 20.79 -28008

71.64 20.29 -28030

72.24 19.79 -2804672.83 19.29 -28055

73.41 18.78 -28058

73.98 18.28 -28056

74.53 17.78 -28048

75.08 17.28 -28035

75.61 16.78 -28017

76.13 16.28 -27995

76.64 15.78 -27969


18/52

77.13 15.28 -27940

77.61 14.78 -27907

78.08 14.28 -27872

78.53 13.78 -27834

78.97 13.28 -27794

79.40 12.78 -27753

79.81 12.28 -2771080.21 11.79 -27666

80.59 11.29 -27621

80.96 10.80 -27575

81.31 10.30 -27530

81.65 9.81 -27484

81.97 9.31 -27439

82.27 8.82 -27395

82.57 8.32 -27352

82.84 7.83 -27309

83.10 7.34 -27268

83.34 6.85 -27229

83.57 6.36 -2719183.78 5.87 -27156

83.97 5.38 -27123

84.15 4.89 -27092

84.31 4.40 -27063

84.46 3.91 -27037

84.58 3.42 -27014

84.69 2.93 -26994

84.79 2.44 -26976

84.86 1.95 -26962

84.92 1.46 -26951

84.97 0.98 -26943

84.99 0.49 -26938

85.00 0.00 -2693684.99 -0.49 -26938

84.97 -0.98 -26943

84.92 -1.46 -26951

84.86 -1.95 -26962

84.79 -2.44 -26976

84.69 -2.93 -26994

84.58 -3.42 -27014

84.46 -3.91 -27037

84.31 -4.40 -27063

84.15 -4.89 -27092

83.97 -5.38 -27123

83.78 -5.87 -2715683.57 -6.36 -27191

83.34 -6.85 -27229

83.10 -7.34 -27268

82.84 -7.83 -27309

82.57 -8.32 -27352

82.27 -8.82 -27395

81.97 -9.31 -27439

81.65 -9.81 -27484


19/52

81.31 -10.30 -27530

80.96 -10.80 -27575

80.59 -11.29 -27621

80.21 -11.79 -27666

79.81 -12.28 -27710

79.40 -12.78 -27753

78.97 -13.28 -2779478.53 -13.78 -27834

78.08 -14.28 -27872

77.61 -14.78 -27907

77.13 -15.28 -27940

76.64 -15.78 -27969

76.13 -16.28 -27995

75.61 -16.78 -28017

75.08 -17.28 -28035

74.53 -17.78 -28048

73.98 -18.28 -28056

73.41 -18.78 -28058

72.83 -19.29 -2805572.24 -19.79 -28046

71.64 -20.29 -28030

71.03 -20.79 -28008

70.41 -21.29 -27977

69.78 -21.79 -27940

69.14 -22.29 -27894

68.49 -22.79 -27839

67.83 -23.29 -27776

67.16 -23.78 -27703

66.49 -24.28 -27621

65.80 -24.77 -27529

65.11 -25.27 -27427

64.41 -25.76 -2731363.71 -26.25 -27189

62.99 -26.74 -27053

62.28 -27.22 -26905

61.55 -27.71 -26746

60.82 -28.19 -26574

60.08 -28.66 -26389

59.34 -29.14 -26191

58.60 -29.61 -25980

57.85 -30.08 -25755

57.09 -30.55 -25516

56.33 -31.01 -25263

55.57 -31.46 -2499654.81 -31.92 -24713

54.04 -32.36 -24417

53.27 -32.81 -24105

52.50 -33.24 -23777

51.72 -33.68 -23435

50.95 -34.10 -23076

50.17 -34.52 -22702

49.39 -34.94 -22312


20/52

48.61 -35.35 -21906

47.84 -35.75 -21484

47.06 -36.14 -21045

46.28 -36.53 -20590

45.50 -36.90 -20119

44.72 -37.27 -19631

43.95 -37.63 -1912743.18 -37.99 -18607

42.40 -38.33 -18070

41.63 -38.66 -17517

40.87 -38.99 -16947

40.10 -39.30 -16361

39.34 -39.60 -15759

38.58 -39.89 -15141

37.83 -40.17 -14507

37.07 -40.44 -13858

36.33 -40.70 -13192

35.58 -40.95 -12511

34.84 -41.18 -1181534.11 -41.40 -11104

33.38 -41.60 -10378

32.65 -41.80 -9638

31.93 -41.98 -8883

31.22 -42.14 -8115

30.51 -42.30 -7332

29.80 -42.43 -6537

29.11 -42.55 -5728

28.42 -42.66 -4907

27.73 -42.75 -4073

27.05 -42.83 -3228

26.38 -42.89 -2371

25.72 -42.93 -150425.06 -42.96 -625

24.41 -42.97 263

23.76 -42.97 1161

23.13 -42.94 2068

22.50 -42.91 2984

21.87 -42.85 3908

21.26 -42.77 4839

20.65 -42.68 5777

20.06 -42.57 6722

19.47 -42.45 7673

18.88 -42.30 8629

18.31 -42.14 959017.74 -41.96 10555

17.19 -41.76 11523

16.64 -41.54 12495

16.10 -41.31 13468

15.56 -41.05 14443

15.04 -40.78 15419

14.53 -40.49 16396

14.02 -40.19 17372


21/52

13.52 -39.86 18347

13.03 -39.51 19321

12.55 -39.15 20292

12.08 -38.77 21260

11.62 -38.37 22224

11.17 -37.96 23184

10.72 -37.52 2413910.29 -37.07 25088

9.86 -36.60 26031

9.44 -36.12 26966

9.03 -35.62 27894

8.64 -35.10 28813

8.25 -34.56 29723

7.86 -34.01 30623

7.49 -33.44 31513

7.13 -32.85 32391

6.77 -32.25 33258

6.43 -31.63 34112

6.09 -31.00 349535.77 -30.35 35780

5.45 -29.69 36593

5.14 -29.01 37390

4.84 -28.32 38172

4.55 -27.62 38938

4.27 -26.90 39687

4.00 -26.17 40418

3.74 -25.42 41132

3.48 -24.67 41827

3.24 -23.90 42502

3.00 -23.12 43158

2.77 -22.32 43794

2.55 -21.52 444092.35 -20.71 45003

2.15 -19.88 45575

1.95 -19.05 46125

1.77 -18.20 46653

1.60 -17.35 47158

1.43 -16.49 47639

1.28 -15.62 48096

1.13 -14.74 48530

1.00 -13.86 48939

0.87 -12.96 49323

0.75 -12.06 49682

0.64 -11.16 500150.54 -10.25 50323

0.44 -9.33 50605

0.36 -8.41 50861

0.28 -7.49 51091

0.22 -6.56 51293

0.16 -5.63 51470

0.11 -4.70 51619

0.07 -3.76 51741


22/52

0.04 -2.82 51837

0.02 -1.88 51905

0.00 -0.94 51945

0.00 0.00 51959


23/52

-40

-30

-20

-10

0

100

200

300

400

500

600

700

800

-60.00

-50.00

-40.00

-30.00

-20.00

-10.00

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

110.00

120.00

010

20

30

40

50

60

70

80

90

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

270

280

290

300

310

320

330

340

350

360

Position;Speed

[mm;m/s]

Crankshaft position [ATDC]

Piston dynamics JE Speed Parts 2001

Ref. piston pos. Ref. piston velocity. Piston positon from TDC. Piston velocity. Ref. piston acc. Piston accelerat


24/52

Air temp 20 [C]

M 28.96 [kg/kmol]

Speed of sound 343 [m/s]1126 [ft/s]

RPM 5000 [/min]

Runner length 412 [mm] Tolerance

Min. runner length 336 [mm] -76.2Max. runner length 488 [mm] 76.2

RPM 7000 [/min]

Runner length 345 [mm] Tolerance

Min. runner length 327 [mm] -18.4

Max. runner length 364 [mm] 18.4

Dont mess with the fields in gray, thats where youll find info!

Basic air data calculation

Ram induction theory

"Stopped" organ pipe theory


25/52

Cam data to event timing Event timing to cam data

Intake duration 324.0 [ Crankshaft] Intake opens before TDC 42.0

Exhaust duration 324.0 [ Crankshaft] Intake closes after BDC 78.0

Lobe Separation 112.0 [ Camshaft] Exhaust opens before BDC 82.0Cam advance (+) / retard (-) 0.0 [ Crankshaft] Exhaust closes after TDC 46.0

Intake lobe centerline 112.0 [ ATDC] Intake duration 300.0

Intake opens before TDC 50.0 [ BTDC] Exhaust duration 308.0

Intake closes after BDC 94.0 [ ABDC] Lobe Separation 108.0

Exhaust lobe centerline 112.0 [ BTDC] Cam advance (+) / retard (-) 0.0

Exhaust opens before BDC 94.0 [ BBDC] Intake lobe centerline 108.0

Exhaust closes after TDC 50.0 [ ATDC] Exhaust lobe centerline 108.0

Overlap 100.0 [ Crankshaft] Overlap 88.0

Displacement per cylinder 618 [cm3/cyl.]

Max. power RPM 8500 [RPM]Camshaft advertised duration 348 [ Crankshaft]

Simple CIH cam duration selector



26/52

[ BTDC]

[ ABDC]

[ BBDC][ ATDC]

[ Crankshaft]

[ Crankshaft]

[ Camshaft]

[ Crankshaft]

[ ATDC]

[ BTDC]

[ Crankshaft]


27/52

Engine: #1 #2 #3 #4 #5 #6 #7

HP/Liter Mean VE RPM VE VE VE VE VE VE VE

50 85% 2500 90.5% 90.0% - - 91.0% 90.0% 76.0%

65 90% 3000 90.5% 91.0% - - 93.0% 93.0% 78.0%

80 95% 3500 90.5% 93.5% 85.5% - 95.0% 102.0% 80.0%

95 100% 4000 92.0% 91.5% 84.0% 89.0% 97.0% 119.0% 85.5%

110 105% 4500 94.0% 94.0% 107.5% 98.0% 99.0% 127.5% 83.5%

125 110% 5000 97.0% 93.0% 108.0% 100.5% 97.0% 128.0% 83.5%

140 115% 5500 92.0% 87.0% 112.0% 103.0% 95.0% 124.5% 81.5%

155 120% 6000 86.0% 78.0% 113.0% 107.0% 93.0% 118.5% 73.0%

170 125% 6500 74.5% 68.5% 112.0% 113.0% 81.5% 111.5% 61.0%

7000 - - 106.0% 117.0% - 101.5% -

7500 - - 99.5% 114.0% - - -

8000 - - - 107.0% - - -

8500 - - - 88.0% - - -

Simple VEapproximation.

VE Examples


28/52

Volumetric efficiency is affected mainly by a few separate

phenomena. Flow restriction in ports is proportional to the

square of latent flow capability, that means that Ve fromlatent pumping capability and flow restriction only, Vef can

be written Vef=(1-k0*(Displacement*RPM)^2)*100%

where k0 is a flow restriction constant that depends on

the general tuning of the cylinderhead and valvetrain.

Tuned intakes and exhausts affect cylinder filling by

supercharging cylinders by means of acoustic waves and

kinetic gas energy at a certain peak (tuned) RPM, it can

be written Vet=Vef*k1, where k1 varies by normal

distribution over max ~50% of the RPM range. Values

1.0...1.3 can be considered normal and somewhat

possible to achieve for skilled tuners. Adverse camshaft

effects, i.e. intake dilution from wide overlap, intakepulsations (spitback) from (too) late intake closing etc.

usually goes away at higher RPM, and decreases fairly

linear with RPM, lets call it Vea, values range from -

45...0%. Total Ve can be written Ve=Vet-Vea.


29/52

isplac

Max.

RPM


30/52

ment:

RPM:

steps:

RPM

4000

4500

5000

55006000

6500

7000

7500

8000

8500


31/52

2474

8500

500

VE [%

####

####

####

########

####

####

####

####

####


32/52

[cm ]

[RPM]

[RPM]

PR

1.00

1.00

1.00

1.001.00

1.00

1.00

1.00

1.00

1.00


33/52

Comp

hC [%

####

####

####

########

####

####

####

####

####

urbo e


34/52

Interc

hIC [%

####

####

####

########

####

####

####

####

####

ficienc


35/52

t1 [C]

20

t2 [C]

20.0

20.0

20.0

20.020.0

20.0

20.0

20.0

20.0

20.0


36/52

t3 [C]

20.0

20.0

20.0

20.020.0

20.0

20.0

20.0

20.0

20.0


37/52

DR

1.00

1.00

1.00

1.001.00

1.00

1.00

1.00

1.00

1.00


38/52

[m /s]

0.073

0.091

0.105

0.1210.140

0.158

0.178

0.186

0.186

0.188


39/52

[m /mi

4.40

5.46

6.27

7.238.39

9.49

10.66

11.13

11.18

11.25

Q Ai


40/52

[cfm]

156

193

222

255296

335

376

393

395

397

flow


41/52

[lbs/mi

10.75

13.32

15.32

17.6620.48

23.17

26.03

27.18

27.31

27.47


42/52

[HP]

117.4

145.5

167.3

192.8223.6

253.0

284.3

296.9

298.2

300.0

Po


43/52

[kW]

86.4

107.1

123.2

141.9164.6

186.2

209.2

218.5

219.5

220.8

er


44/52

[Nm]

206.3

227.2

235.2

246.4262.0

273.6

285.4

278.2

262.0

248.1


45/52

[kpm]

21.03

23.16

23.98

25.1226.71

27.89

29.09

28.36

26.71

25.29

orque


46/52

0

50

100

150

200

250

300350

4000

4500

5000

5500

6000

6500

7000

7500

8000

8500

HP/Nm

RPM

Power estimation


47/52

Nominal power 300 [hp]

@ intake air temp. 20 [C] 68 [F]

Actual power 354.4 [hp]

@ operating int. air temp -25 [C] -13 [F]

Cylinders 4

Power/cyl. 88.6 [hp]

Fuel density 747.5 [kg/m3

]lbs/h to cm /min ratio 10.114

Duty cycle 80%

BSFC 0.52 [lbs/(hk*h)]

Min. injector size 57.6 [lbs/h] 582 [cm3/min]

Injector #1 size 582 [cm3/min] 57.6 [lbs/h]

Injector #2 size 0 [cm /min] 0.0 [lbs/h]

Old flow rate 516 [Any unit]

Old fuel pressure 2.80 [Any unit]New fuel pressure 3.60 [Any unit]

New flow rate 585 [Any unit]

New flow rate 582 [Any unit]

Old flow rate 516 [Any unit]

Old fuel pressure 2.80 [Any unit]

New fuel pressure 3.56 [Any unit]

Air pressure 101.325 [kPa] 14.6959 [PSI] 1.00000

Air density 1.4231 [kg/m3]

RAD 116.1%

Density info


Classic US style injector sizing

New flow rate from adjusted pressure

New pressure from flow requirement

Common inputs


48/52

Fuel flow 340 [cm /min]

Fuel mass flow 33.6 [lbs/h]

Fuel mass flow 30.0 [lbs/h]


Air mass flow 0.0667 [kg/s]

Air flow 0.0469 [m /s] 99.3 [CFM]

Air/fuel ratio 11.5 -

Fuel mass flow 0.0058 [kg/s]

Total fuel mass flow 83.5 [kg/h]


Total fuel flow 112 [l/h]

Min. injector size 582 [cm /min] 57.5 [lbs/h]

Injector #1 size 582 [cm3/min] 57.5 [lbs/h]

Injector #2 size 0 [cm /min] 0.0 [lbs/h]

[Atm] 1.01325 [Bar] 29.9213 [in Hg] 760.00 [mm Hg]

A/F ratio based calculation

cm3/min to lbs/h

lbs/h to cm3/min


49/52

Horsepower 300 [hp] Horsepower 300 [hp]

Weight 810 [kg] Weight 810 [kg]

Strip trap speed 208.41 [km/h] 0-100km/h 3.2 [s]Strip E.T. 10.56 [s]

60 foot time 1.44 [s]

Min. HP. Air density 1.205 [kg/m ]

Strip E.T. 10.00 [s] Cd 0.32

Weight 810 [kg] A 1.55 [m2]

Horsepower 353 [hp] V (speed) 310 [km/h]

Max. weight 86.1 [m/s]

Strip E.T. 10.00 [s] P (power) 190.8 [kW]

Horsepower 300 [hp] 259.4 [Hp]

Weight 689 [kg]


Aerodynamic resistance

Strip performance Acceleration


50/52


51/52

Tire width 275 [mm] Final ratio: 5.38

Profile 50 Gear # Ratio

Rim diameter 15 [inches] 1 2.660

Diameter 656.0 [mm] 2 1.780

Circumferance 2060.9 [mm] 3 1.300

4 1.000

5 0.740

6 0.500

Transmission 1 2 3 4 5 6

4L30-E 4-spd Automatic 2.400 1.479 1.000 0.723 - -

4L30-E Optional 4-spd Automatic 2.860 1.620 1.000 0.723 - -

4L60-E 4-spd Automatic 3.059 1.625 1.000 0.696 - -

4L80-E 4-spd Automatic 2.482 1.482 1.000 0.750 - -Borg Warner Close Ratio T-5 2.950 1.940 1.340 1.000 0.630 -

Borg Warner Close Ratio T-5 2.950 1.940 1.340 1.000 0.800 -

Borg Warner T56 6-spd manual 3.360 2.070 1.350 1.000 0.800 0.620

Borg Warner T-56 M28 1993 3.360 2.070 1.350 1.000 0.800 0.620

Borg Warner T-56 M29 1993 2.970 2.070 1.430 1.000 0.800 0.620

Borg Warner T-56 MN6 1994-> 2.660 1.780 1.300 1.000 0.740 0.500

Getrag 240 "Small Getrag" 3.717 2.019 1.316 1.000 0.805 -

Getrag 262 3.855 2.203 1.402 1.000 - -

Getrag 262 CR 3.717 2.403 1.766 1.263 1.000 -

Getrag 264 3.510 2.080 1.350 1.000 0.810 -

Getrag 265 "Big Getrag" 3.822 2.200 1.398 1.000 0.813 -

Power Glide 2-spd Automatic 1.820 1.000 - - - -Power Glide 2-spd Automatic 1.760 1.000 - - - -

Richmond Gear (Doug Nash) 5-spd 3.270 2.140 1.570 1.230 1.000 -

TH-180C (3L30) 3-spd Automatic 2.400 1.479 1.000 - - -

TH-200-4R 4-spd Automatic 2.741 1.568 1.000 0.674 - -

TH-350 3-spd Automatic 2.510 1.520 1.000 - - -

TH-400 (3L80) 3-spd Automatic 2.482 1.842 1.000 - - -

TH-700-R4 (4L60) 4-spd Automatic 3.059 1.625 1.000 0.696 - -

ZF 6-spd manual 2.680 1.800 1.310 1.000 0.750 0.500

GEAR RATIO


Tire / wheel data Speed calcula


52/52

Engage Upshift Engage Upshift

0 8500 0 73

5688 8500 73 110

6208 8500 110 150

6538 8500 150 195

6290 8500 195 264

5743 8500 264 391

Speed [km/h]RPM

ion

car engine dynamics

Documents