Dyno - Tested Camsheft Theory

Ratio Games

Stock Stamped 1.5:1 (Gain) 1.6:1 (Gain) 1.65:1

(Gain)Lift intake 0.477 0.477 0.509 0.524Lift exhaust 0.480

0.480 0.512 0.528Avg. TQ 386.8 393.4 (+6.6) 401.9 (+15.1) 402.4

(+15.6)Avg. HP 329.9 335.6 (+5.7) 343.2 (+13.3) 343.5 (+13.6)Gains

are expressed compared to the stock stamped rocker baseline

Camshaft Chart Duration DurationDescription (Adv.) (@ 0.050)

Lift LSAXtreme EnergyInt. 268 224 0.477 in 110Exh.

280 230 0.480 in

Cam SPECS Duration DurationDescription (Adv.) (@ 0.050)

Lift LSA(1.5:1)Stock GM, Intake 310 195 0.390 in 112P

N 3896929, Exhaust 320 202 0.410 in

Erson TQ40H, Intake

284 218 0.472 in 110PN E113321, Exhaust 296 228

0.472 in

POWER Chart

Stock Cam Erson Cam Difference TQ HP

TQ HP TQ HPMax Power 399 326 419 403 20

77Avg. Power 349 254 384 298 35 442,000-5,900 rpm

PARTS & PRICESDESCRIPTION PN SOURCE PRICEErson TQ40H cam

E113321 Summit Racing $89.95Erson hyd. lifters E914501 Summit Racing

69.95Erson valvesprings E915005 Summit Racing 45.95Fel-Pro intake

gasket 1205 Summit Racing 13.88Fel-Pro timing cover gasket 45121

Summit Racing 13.99Fel-Pro valve cover gasket 1603 Summit Racing

11.95Total $245.67