|
|
|
|
 |
 
|
 |
BMW Garage | BMW Meets | Register | Today's Posts | Search |
 |
|
BMW 3-Series (E90 E92) Forum
>
Some power/torque/boost figures for a single turbo setup. Calculations inside !
|
 |
| 05-30-2012, 08:18 AM | #1 |
|
Brigadier General
 
328
Rep 3,262
Posts |
Some power/torque/boost figures for a single turbo setup. Calculations inside !
Hi,
So since I made a small software program to calculate the maximum safe boost for stock turbos (results here: http://www.e90post.com/forums/showthread.php?t=698246 ) I thought that I may as well calculate some figures for single turbo setups. I chose a Garrett GTX3076R turbocharger (I suppose this is one of the best for a decent single turbo with as little lag as possible - if you have the money  ) and did some calculations of maximum psi, maximum power (crank, not wheel) and torque figures at various RPMs, based on its efficiency maps.I used the following other variables: AFR=11.5 ; Volumetric efficiency: 95%, temperature: 35 Celsius. I have calculated the power/torque figures for 20psi, 16psi, 25psi, and unlimited psi. With boost limited to 20 psi, here are the max power / max torque figures: RPM PSI HP Nm 2500 3.20 102 289 2600 6.40 125 341 2700 9.30 147 388 2800 10.30 159 404 2900 11.50 173 424 3000 12.80 187 445 3100 14.20 203 467 3200 15.60 220 490 3300 16.80 236 509 3400 18.20 254 532 3500 19.60 273 555 3600 20.00 284 561 3700 20.00 292 561 3800 20.00 299 561 3900 20.00 307 561 4000 20.00 315 561 4100 20.00 323 561 4200 20.00 331 561 4300 20.00 339 561 4400 20.00 347 561 4500 20.00 355 561 4600 20.00 362 561 4700 20.00 370 561 4800 20.00 378 561 4900 20.00 386 561 5000 20.00 394 561 5100 20.00 402 561 5200 20.00 410 561 5300 20.00 418 561 5400 20.00 425 561 5500 20.00 433 561 5600 20.00 441 561 5700 20.00 449 561 5800 20.00 457 561 5900 20.00 465 561 6000 20.00 473 561 6100 20.00 481 561 6200 20.00 488 561 6300 20.00 496 561 6400 20.00 504 561 6500 20.00 512 561 6600 20.00 520 561 6700 20.00 528 561 6800 20.00 536 561 6900 20.00 544 561 7000 20.00 552 561 7100 20.00 559 561 7200 20.00 567 561 7300 20.00 575 561 7400 20.00 583 561 7500 20.00 591 561 With boost limited to 16 psi: 2500 3.20 102 289 2600 6.40 125 341 2700 9.30 147 388 2800 10.30 159 404 2900 11.50 173 424 3000 12.80 187 445 3100 14.20 203 467 3200 15.60 220 490 3300 16.00 230 496 3400 16.00 237 496 3500 16.00 244 496 3600 16.00 251 496 3700 16.00 258 496 3800 16.00 265 496 3900 16.00 272 496 4000 16.00 279 496 4100 16.00 286 496 4200 16.00 293 496 4300 16.00 300 496 4400 16.00 307 496 4500 16.00 314 496 4600 16.00 321 496 4700 16.00 328 496 4800 16.00 335 496 4900 16.00 342 496 5000 16.00 349 496 5100 16.00 356 496 5200 16.00 362 496 5300 16.00 369 496 5400 16.00 376 496 5500 16.00 383 496 5600 16.00 390 496 5700 16.00 397 496 5800 16.00 404 496 5900 16.00 411 496 6000 16.00 418 496 6100 16.00 425 496 6200 16.00 432 496 6300 16.00 439 496 6400 16.00 446 496 6500 16.00 453 496 6600 16.00 460 496 6700 16.00 467 496 6800 16.00 474 496 6900 16.00 481 496 7000 16.00 488 496 7100 16.00 495 496 7200 16.00 502 496 7300 16.00 509 496 7400 16.00 516 496 7500 16.00 523 496 With boost limited to 25psi: 2500 3.20 102 289 2600 6.40 125 341 2700 9.30 147 388 2800 10.30 159 404 2900 11.50 173 424 3000 12.80 187 445 3100 14.20 203 467 3200 15.60 220 490 3300 16.80 236 509 3400 18.20 254 532 3500 19.60 273 555 3600 21.20 293 580 3700 23.20 318 613 3800 25.00 343 642 3900 25.00 352 642 4000 25.00 361 642 4100 25.00 370 642 4200 25.00 379 642 4300 25.00 388 642 4400 25.00 397 642 4500 25.00 406 642 4600 25.00 415 642 4700 25.00 424 642 4800 25.00 433 642 4900 25.00 442 642 5000 25.00 451 642 5100 25.00 460 642 5200 25.00 469 642 5300 25.00 478 642 5400 25.00 487 642 5500 25.00 496 642 5600 25.00 505 642 5700 25.00 514 642 5800 25.00 523 642 5900 25.00 532 642 6000 25.00 541 642 6100 25.00 550 642 6200 25.00 559 642 6300 25.00 568 642 6400 25.00 577 642 6500 25.00 586 642 6600 25.00 595 642 6700 24.70 599 637 6800 24.10 599 627 6900 23.50 598 618 7000 22.90 598 608 7100 22.30 596 598 7200 21.70 595 589 7300 21.20 595 580 7400 20.70 595 572 7500 20.20 594 564 And finally, with unlimited boost but keeping turbos in their efficiency zone: 2500 3.20 102 289 2600 6.40 125 341 2700 9.30 147 388 2800 10.30 159 404 2900 11.50 173 424 3000 12.80 187 445 3100 14.20 203 467 3200 15.60 220 490 3300 16.80 236 509 3400 18.20 254 532 3500 19.60 273 555 3600 21.20 293 580 3700 23.20 318 613 3800 26.20 353 661 3900 37.20 460 839 4000 37.00 470 836 4100 36.90 480 834 4200 36.70 490 831 4300 36.60 501 829 4400 36.50 512 828 4500 36.30 521 825 4600 36.20 532 823 4700 36.00 541 820 4800 35.90 551 818 4900 35.80 562 816 5000 35.60 571 813 5100 35.50 581 812 5200 35.00 587 804 5300 34.50 592 795 5400 33.70 593 783 5500 32.90 594 770 5600 32.10 595 757 5700 31.40 597 745 5800 30.60 597 732 5900 29.90 597 721 6000 29.20 598 710 6100 28.60 600 700 6200 27.90 600 689 6300 27.30 601 679 6400 26.70 602 669 6500 26.00 601 658 6600 25.30 599 647 6700 24.70 599 637 6800 24.10 599 627 6900 23.50 598 618 7000 22.90 598 608 7100 22.30 596 598 7200 21.70 595 589 7300 21.20 595 580 7400 20.70 595 572 7500 20.20 594 564 As a comparison, here are the results for the stock turbos (maxed out but such that they are still in their efficiency range). 1300 4.00 56 307 1400 6.50 68 348 1500 15.80 106 501 1600 17.50 119 529 1700 17.60 127 531 1800 17.70 135 532 1900 17.80 142 534 2000 17.80 150 534 2100 17.90 158 536 2200 18.00 166 537 2300 18.10 174 539 2400 18.20 182 541 2500 18.30 190 542 2600 18.40 199 544 2700 18.50 207 545 2800 18.50 214 545 2900 18.60 223 547 3000 18.80 232 550 3100 18.90 240 552 3200 19.00 249 554 3300 19.10 257 555 3400 19.20 266 557 3500 19.30 275 559 3600 19.40 283 560 3700 19.30 290 559 3800 19.20 297 557 3900 19.10 304 555 4000 19.00 311 554 4100 18.90 318 552 4200 18.70 324 549 4300 18.60 330 547 4400 18.50 337 545 4500 18.40 344 544 4600 18.10 348 539 4700 17.70 351 532 4800 17.30 354 526 4900 16.90 357 519 5000 16.50 360 513 5100 16.20 364 508 5200 15.80 366 501 5300 15.50 369 496 5400 15.10 371 490 5500 14.80 374 485 5600 14.50 377 480 5700 14.10 379 473 5800 13.60 379 465 5900 13.00 377 455 6000 12.40 375 445 6100 11.90 374 437 6200 11.30 372 427 6300 10.80 371 419 6400 10.20 368 409 6500 9.70 366 401 6600 9.10 362 391 6700 8.60 360 383 6800 8.10 358 375 6900 7.70 357 368 7000 7.20 354 360 7100 6.80 352 353 7200 6.40 351 347 7300 6.00 349 340 7400 5.60 347 334 Hope this helps...
__________________
Last edited by cstavaru; 05-30-2012 at 10:14 AM.. |
| 05-30-2012, 08:53 AM | #4 | |
|
Brigadier General
328
Rep 3,262
Posts |
Quote:
__________________
|
|
|
Appreciate
0
|
| 05-30-2012, 12:08 PM | #6 |
|
Captain
 
8
Rep 704
Posts |
Awesome work!
Always knew the new 3076 would work great! What about the GTX3582? Or the Borg Warner EFR 7670? The EFR 7670 would be the one I am most interested in! |
|
Appreciate
0
|
 |
| Bookmarks |
|
|
