We're just weeks away from this year's dyno challenge to be held at the Comp Cams facility in Memphis, Tennessee, and we are eager to see how much power this year's 500-inch wedge engines can make. Will the wedges out perform the Hemis? the engines will be judged from 3,000 to 7,000 rpm, a range most of us at Mopar Muscle feel will favor the wedges. But it's hard to beat Hemi power, so let's review the numbers from last year's challenge.

SuperFlow Dyno Results

Engine RPM Corrected HP Corrected TQ
3,000 324.0 548.9
3,500 356.6 535.1
4,000 380.0 498.9
4,500 476.5 556.2
5,000 580.7 609.9
5,100 592.4 610.1
5,200 605.2 611.3
5,300 620.1 614.5
5,400 633.2 615.8
5,500 643.1 614.1
5,600 650.7 610.3
5,700 657.1 605.5
5,800 665.5 602.7
5,900 674.6 600.5
6,000 682.3 597.2
6,100 688.7 593.0
6,200 694.4 588.2
6,300 703.6 586.6
6,400 713.9 585.8
6,500 723.6 584.6
6,600 728.2 579.4
6,700 724.4 567.8
6,800 696.8 538.2
6,900 629.3 479.0
7,000 626.2 468.2

Combined peak horsepower and torque total: 1344.0

Speed-O-Motive

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 283.3 495.9
3,500 345.6 518.6
4,000 378.5 497.0
4,500 481.8 562.3
5,000 589.1 618.8
5,100 600.0 617.9
5,200 611.6 617.2
5,300 623.0 617.4
5,400 634.4 617.1
5,500 645.9 616.8
5,600 657.8 617.0
5,700 667.2 614.7
5,800 675.4 611.6
5,900 682.9 607.9
6,000 689.6 603.7
6,100 694.5 598.0
6,200 700.4 593.3
6,300 706.0 588.6
6,400 711.5 583.9
6,500 716.2 578.7
6,600 720.1 573.0
6,700 721.8 565.8
6,800 721.4 557.2
6,900 722.6 550.0
7,000 722.2 541.9

Combined peak horsepower and torque total: 1341.4

Hemi's Only

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 328.2 556.0
3,500 377.3 566.1
4,000 423.1 555.6
4,500 523.0 610.4
5,000 608.7 639.6
5,100 618.2 636.6
5,200 627.6 633.9
5,300 637.4 631.6
5,400 645.5 627.8
5,500 654.0 624.5
5,600 661.9 620.8
5,700 669.2 616.6
5,800 675.8 611.9
5,900 682.1 607.2
6,000 688.9 603.0
6,100 694.3 597.8
6,200 697.8 591.1
6,300 699.9 583.4
6,400 699.9 583.4
6,500 700.1 565.7
6,600 701.8 558.5
6,700 701.4 549.8
6,800 699.9 540.6
6,900 693.6 527.9
7,000 687.5 515.8

Combined peak horsepower and torque total: 1341.4

Lofgren Auto Specialties

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 286.6 501.8
3,500 338.6 508.0
4,000 357.8 469.8
4,500 446.4 521.0
5,000 562.3 590.6
5,100 577.2 594.4
5,200 590.2 596.1
5,300 601.8 596.3
5,400 612.3 595.5
5,500 622.8 594.7
5,600 632.2 592.9
5,700 642.8 592.2
5,800 653.7 592.0
5,900 664.2 591.2
6,000 673.4 589.5
6,100 680.9 586.2
6,200 687.7 582.6
6,300 692.5 577.3
6,400 697.1 572.0
6,500 700.8 566.3
6,600 705.7 561.5
6,700 711.6 557.8
6,800 716.2 553.2
6,900 719.9 548.0
7,000 725.4 544.2

Combined peak horsepower and torque total: 1321.7

Muscle Motors

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 283.2 495.7
3,500 340.3 510.7
4,000 362.7 476.3
4,500 469.1 547.4
5,000 556.0 584.0
5,100 568.8 585.7
5,200 579.6 585.4
5,300 590.5 585.2
5,400 600.9 584.4
5,500 610.2 582.7
5,600 616.2 577.9
5,700 620.9 572.1
5,800 623.8 564.8
5,900 626.4 557.6
6,000 629.4 551.0
6,100 632.7 544.7
6,200 637.6 540.1
6,300 644.6 537.4
6,400 652.3 535.3
6,500 659.1 532.6
6,600 662.8 527.4
6,700 664.4 520.8
6,800 666.2 514.5
6,900 666.5 507.3
7,000 665.8 499.6

Combined peak horsepower and torque total: 1252.2

Indy Cylinder Head

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 304.3 532.8
3,500 353.3 530.1
4,000 382.8 502.6
4,500 491.3 573.4
5,000 571.9 600.8
5,100 581.7 599.0
5,200 590.3 596.2
5,300 596.9 591.5
5,400 602.4 585.9
5,500 607.1 579.7
5,600 611.0 573.0
5,700 614.2 565.9
5,800 619.2 560.7
5,900 624.6 556.0
6,000 628.7 550.2
6,100 633.3 545.2
6,200 636.4 539.1
6,300 640.4 533.9
6,400 644.4 528.8
6,500 647.5 523.2
6,600 649.0 516.5
6,700 646.0 506.4
6,800 640.6 494.8
6,900 630.9 480.2
7,000 625.9 469.6

Combined peak horsepower and torque total: 1249.8

Mid America Racing Engines

SuperFlow Dyno Results
Engine RPM Corrected HP Corrected TQ
3,000 301.1 527.2
3,500 339.5 509.5
4,000 365.0 479.3
4,500 455.0 531.0
5,000 547.5 575.1
5,100 559.6 576.3
5,200 570.9 576.6
5,300 580.1 574.9
5,400 588.3 572.2
5,500 596.4 569.5
5,600 603.3 565.9
5,700 610.7 562.7
5,800 616.8 558.5
5,900 622.1 553.8
6,000 628.0 549.7
6,100 634.8 546.5
6,200 642.7 544.4
6,300 649.9 541.8
6,400 655.1 537.6
6,500 658.3 531.9
6,600 661.4 526.3
6,700 664.1 520.6
6,800 666.0 514.4
6,900 664.5 505.8
7,000 661.7 503.9

Combined peak horsepower and torque total: 1242.6

While we can't say last year's challenge went off without a hitch, we can say that all the competitors were good sports about the challenge and were eager to help each other out when needed. All the Hemis made impressive power, and there were no catastrophic engine failures to ruin anybody's fun. The folks at Comp Cams were generous hosts, providing lunch each day and giving tours of their impressive Memphis facility to anyone interested.

This year's challenge is shaping up to be even more impressive than last year; engine builders have utilized an even wider variety of parts and building techniques for their entries. Remember the contest is based on a combined score of horsepower and torque, divided by the cost of the parts that went into the engine, so the builder who makes the most power won't necessarily be the winner. Last year, it took a blend of stout power combined with an economical parts list to land Lofgren Auto Specialties in the winner's circle.

This year's dyno challenge should prove to be very interesting as we have a wide variety of parts on the wedge motors entered in the contest. Cylinder heads from Indy, Edelbrock, Bulldog, and Brodix will all be tested on Comp's Superflow engine dyno, and one competitor's engine is even sporting six-pack induction!

After the testing is complete, be sure to visit our web site where the challenge results will first be posted. Also stay tuned to future issues as we cover the challenge and also go in-depth into each engine, revealing the builder's power secrets!

SOURCE
J.D. Engine and Machine
900 Spencer Ave.
Columbia
MO  65203
5-73/-445-4550
Best Machine Racing Engines
24808 Romano St.
Warren
MI  48091
5-86/-759-2673
Hemi's Only
4131 South Main St.
Akron
OH  44319
3-30/-644-2000
Hitech Motorsport
13915 Radium St. NW Ste C
Ramsey
MN  55303
7-63/-712-9088
Indy Cylinder Head
8621 Southeastern Ave.
Indianapolis
IN  46239
3-17/-862-3724
indyheads.com
Mid America Racing Engines
1945 W. 18th St.
Washington
IA  52353
3-19/-653-6282
midamericadb@lisco.com
Lofgren Auto Specialties
18130 Dahlia St. NW
Cedar
MN  55011
7-63/-753-7573
Mopar Engines West
37530 Enterprise Ct. No. 4
Newark
CA  94560
5-10/-796-4313
Mid America
1945 W. 18th St.
Washington
IA  52353
3-19/-653-6282
MRL Performance
4651 Culley Ln.
Jackson
MI  49201
5-17/-569-2672
mrlperformance@peoplepc.com
Muscle Motors
2085 Glenn St.
Lansing
MI  48906
5-17/-482-4900
musclemotorsracing.com
Promax
30-A Gasoline Alley
Indianapolis
IN  46222
3-17/-484-1451
Speed-O-Motive
131 W. Lang Ave.
West Covina
CA  91790
6-26/-869-0270
speedomotive.com
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