Eliminator Cylinder Heads - Big Power For Little Cash
Test TwoFor this test we switched intakes from the Performer RPM Air Gap (dual-plane) to the Victor Jr.(single-plane) and recorded improved horsepower at a 200 higher engine rpm (488 hp at 5,900rpm, compared with Test 1's 471 hp at 5,700 rpm). The peak torque number dropped to 475 lb-ft but at a slightly higher rpm. * 750 Mighty Demon* Edelbrock Victor Jr. single-plane* AFR 195 Street Eliminator Cylinder Heads* Comp Cams Xtreme Energy 274 cam w/1.52:1 roller rockers* Westech custom headers with 3-inch collectors* Jets: Primary: 78 changed to 75; Secondary: 80 changed to 78 | RPM | TORQUE | HP | | 3,000 | 420 | 240 | | 3,100 | 423 | 250 | | 3,200 | 427 | 260 | | 3,300 | 432 | 271 | | 3,400 | 438 | 284 | | 3,500 | 444 | 296 | | 3,600 | 451 | 309 | | 3,700 | 456 | 322 | | 3,800 | 462 | 334 | | 3,900 | 466 | 346 | | 4,000 | 469 | 357 | | 4,100 | 470 | 368 | | 4,200 | 471 | 376 | | 4,300 | 472 | 387 | | 4,400 | 473 | 397 | | 4,500 | 474 | 407 | | 4,600 | 475 | 416 | | 4,700 | 475 | 425 | | 4,800 | 475 | 434 | | 4,900 | 475 | 443 | | 5,000 | 475 | 452 | | 5,100 | 473 | 459 | | 5,200 | 471 | 466 | | 5,300 | 468 | 472 | | 5,400 | 464 | 477 | | 5,500 | 459 | 481 | | 5,600 | 453 | 483 | | 5,700 | 448 | 486 | | 5,800 | 441 | 487 | | 5,900 | 434 | 488 | | 6,000 | 425 | 486 | | 6,100 | 417 | 484 | | 6,200 | 407 | 481 | | 6,300 | 398 | 478 | | 6,400 | 388 | 473 | | AVERAGE | 447 | 379 | Test ThreeAfter a camshaft change to a bigger XE284H and 1.6:1 roller rockers we moved the horsepower number up considerably to 518. Peak torque stayed flat but was reached at a higher 5,200 rpm.* 750 Mighty Demon* Edelbrock Victor Jr. single-plane* AFR 195 Street Eliminator cylinder heads * Comp Cams Xtreme Energy 284 cam w/1.6:1 roller rockers* Westech custom headers with 3-inch collectors* Jets: Primary: 78 changed to 75; Secondary: 80 changed to 78 | RPM | TORQUE | HP | | 3,000 | 400 | 228 | | 3,100 | 404 | 238 | | 3,200 | 410 | 250 | | 3,300 | 417 | 262 | | 3,400 | 424 | 275 | | 3,500 | 431 | 288 | | 3,600 | 438 | 300 | | 3,700 | 445 | 313 | | 3,800 | 450 | 326 | | 3,900 | 454 | 338 | | 4,000 | 457 | 348 | | 4,100 | 458 | 357 | | 4,200 | 459 | 367 | | 4,300 | 461 | 378 | | 4,400 | 463 | 388 | | 4,500 | 465 | 398 | | 4,600 | 467 | 409 | | 4,700 | 468 | 419 | | 4,800 | 470 | 430 | | 4,900 | 473 | 441 | | 5,000 | 475 | 452 | | 5,100 | 477 | 463 | | 5,200 | 478 | 473 | | 5,300 | 476 | 480 | | 5,400 | 472 | 485 | | 5,500 | 467 | 489 | | 5,600 | 462 | 493 | | 5,700 | 458 | 497 | | 5,800 | 454 | 502 | | 5,900 | 452 | 507 | | 6,000 | 449 | 513 | | 6,100 | 445 | 517 | | 6,200 | 439 | 518 | | 6,300 | 431 | 516 | | 6,400 | 421 | 513 | | AVERAGE | 444 | 380 |
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