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Dyno Testing The TPI Chevy Small-Block Engine - Third-Gen Torture Test
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DYNO RUNS WITH CAM NO. 1
TPI Manifold Holley Single-Plane GM Ram Jet Holley Stealth Ram
RPM TQ HP RPM TQ HP RPM TQ HP RPM TQ HP
2,400 423.4 193.5 2,800 391.8 211.3 2,900 411.5 226.3 2,900 425.1 233.1
2,500 430.0 204.7 2,900 386.4 213.4 3,000 416.8 238.1 3,000 428.3 244.6
2,600 441.8 218.7 3,000 387.9 221.6 3,100 419.6 247.7 3,100 426.3 251.6
2,700 453.1 233.0 3,100 414.7 244.8 3,200 421.4 256.8 3,200 425.2 259.0
2,800 457.4 243.9 3,200 420.7 256.3 3,300 420.9 264.5 3,300 424.5 266.8
2,900 457.0 252.4 3,300 426.3 267.9 3,400 420.8 272.4 3,400 422.2 273.3

3,000 458.4 261.8 3,400 426.1 275.8 3,500 418.6 278.9 3,500 421.4 280.8
3,100 464.4 274.1 3,500 426.2 284.0 3,600 418.0 286.5 3,600 422.2 289.4
3,200 472.1 287.7 3,600 426.5 292.4 3,700 418.4 294.7 3,700 424.8 299.3
3,300 475.8 299.0 3,700 429.9 302.9 3,800 421.1 304.7 3,800 428.5 310.0
3,400 474.6 307.2 3,800 434.6 314.4 3,900 425.2 315.7 3,900 431.3 320.3
3,500 472.0 314.5 3,900 440.2 326.8 4,000 430.4 327.8 4,000 431.1 328.4
3,600 468.2 320.9 4,000 445.3 339.1 4,100 433.3 338.2 4,100 431.3 336.7
3,700 470.0 331.3 4,100 446.8 348.8 4,200 436.6 349.2 4,200 432.5 345.8
3,800 478.2 346.0 4,200 447.2 357.6 4,300 435.0 356.2 4,300 435.6 356.7
3,900 483.9 359.3 4,300 446.7 365.7 4,400 434.5 364.0 4,400 439.6 368.3

4,000 486.6 370.6 4,400 447.4 374.8 4,500 433.4 371.3 4,500 445.0 381.3
4,100 483.1 377.1 4,500 447.9 383.7 4,600 434.0 380.1 4,600 448.7 393.0
4,200 479.5 383.5 4,600 450.0 394.1 4,700 436.1 390.3 4,700 450.8 403.4
4,300 474.4 393.0 4,700 449.4 402.1 4,800 437.9 400.3 4,800 453.7 414.6
4,400 469.2 393.1 4,800 451.3 412.5 4,900 441.0 411.4 4,900 453.4 423.0
4,500 462.2 396.0 4,900 451.5 421.3 5,000 443.0 421.7 5,000 453.4 431.6
4,600 457.4 400.6 5,000 450.3 428.7 5,100 444.9 432.0 5,100 451.5 431.6
4,700 454.6 406.8 5,100 448.7 435.7 5,200 444.6 440.2 5,200 449.8 445.4
4,800 449.5 410.8 5,200 448.0 443.5 5,300 442.6 446.7 5,300 445.6 449.7
4,900 444.1 414.4 5,300 444.9 449.0 5,400 438.0 450.4 5,400 440.2 452.6

5,000 437.2 416.3 5,400 442.4 454.9 5,500 434.5 455.1 5,500 434.0 454.5
5,100 427.4 415.0 5,500 434.9 455.4 5,600 430.4 458.9 5,600 426.9 455.2
5,200 415.2 411.0 5,600 426.9 455.2 5,700 425.7 462.0 5,700 420.9 456.8
5,300 401.5 405.2 5,700 420.9 456.9 5,800 419.8 463.6 5,800 414.1 457.3
5,400 389.5 400.5 5,800 415.2 458.5 5,900 413.5 464.5 5,900 406.9 457.1
5,500 378.3 396.2 5,900 407.6 459.2 6,000 406.2 464.1 6,000 398.0 455.7
  6,100 396.5 460.6  

Full Article
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Community Comments

alex.scarset  (06/13/11 04:36 PM)

I have a '89 GTA and am planning on rebuilding the engine similar to the specs listed in this article with the GM Ram Jet and Cam no. 2.  My question is being that I mostly worked with carbureted  engines, is there an alternative to the FAST XFI. The price on that is waaay to expensive.  ANy help?

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