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
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