VHP Has Designed Several New Profiles, Each With A Specific Power Purpose. Of Course, We Still Build The Conventional Cam Profiles We Have Built For 0ver 39 Years.these Profiles & Rockers Applied To Computer Managed Engines Means That Short Seat-to-seat Timing Can Be Maintained To Provide High Vacuum At Idle And Low Speed, But Duration At .100", .200" Etc. Is Equal To Camshafts Having .050 Durations 8 To 10 Degrees Larger. This Means Great Power Increases And Ease Of Tuning The Engine Management System.
all Of Our .551 Lift Cams Will Fit With Stock Pistons And Our 1.8 Rockers.
vhp Works To Develop Products Like These! We Test Them On The Dyno. then We Test Them On The Drag Strip!
VHP new ACCELERATED LIFT rocker arm geometry has opened the door to a new area of valve train development and cam lobe design that is producing impressive results. The ACCELERATED LIFT? geometry is not magic; it is simply a new design of the rocker arm body that locates the pushrod seat low in the body with respect to the center of rotation about the shaft. Because the pushrod seat area travels in an arc as the lifter/pushrod moves upward during the lift event, the pushrod seat moves slightly away from the center of rotation around the shaft. This movement of the seat through its operating arc causes the effective rocker arm ratio to decrease. The end effect is this: a 1.6 ratio ACCELERATED LIFT? rocker arm actually starts opening the valve at a ratio of 1.7. As the valve opens, the rocker ratio decreases to the 1.6 advertised ratio (this occurs at about .250? - .300? valve lift) and then maintains the 1.6 ratio through the rest of the lift cycle until it starts back on the seat. It goes back on the seat at a 1.7 ratio. This new geometry provides increased airflow earlier in the lift cycle and maintains it longer into the closing event. More flow equals more power! There are additional benefits. The ACCELERATED LIFT? design applied to computer managed engines means that short seat-to-seat timing can be maintained to provide high vacuum at idle and low speed, but duration at .100?, .200 etc. is equal to camshafts having .050 durations 8 to 10 degrees bigger. This means great power increases and ease of tuning the engine management system. ACCELERATED LIFT? geometry is the future for pushrod engines and VHP has it for you today! VHP has also designed new camshaft lobes to maximize the advantage of these rockers. The new ACCELERATED LIFT? lobes are being used in all of our new racing profiles, as well as our new LS1 family of cams for GM cars and trucks. Performance enthusiasts have known for over 25 years that the best lobe design to maximize area under the lift curve? is the inverted flank roller lobe: However, the inverted flank design? creates several manufacturing headaches which cause the price of these designs to be quite high. VHP'S new ACCELERATED LIFT? Rocker body design and new complementary ACCELERATED LIFT? cam lobe designs have produced a valve lift profile that exceeds the power potential of the inverted flank? designs. These new profiles are available on all of the latest LS1 cams, including the Truck Power? cams and many of the new racing cams. Most of our future pushrod camshaft designs will incorporate the ACCELERATED LIFT? technology.
CAM GRIND |
SPECIFICATIONS |
COMMENTS |
PRICE |
XXX sound byte |
DUR @ .004" 284* / 290* DUR @ .050" 222* / 228* LIFT .551 / .551 OVERLAP 57* LSA 115 |
"ACCELERATOR" STREET / STRIP POWER RANGE 2000 TO 6500 TUNING & STALL CONVERTER REQUIRED VERY POWERFUL - CHOPPY IDLE PERFECT FOR SUPERCHARGERS |
$424.99 |
079
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DUR @ .004" 272*/280* DUR @ .050" 210*/218* LIFT .551/.551 OVERLAP 46* LSA 116* |
"ULTRA TORQUE" POWER RANGE 1500 TO 6000 PROVIDES VERY HIGH TORQUE GAINS GREAT FUEL ECONOMY & POWER NO TUNING REQUIRED LIGHT THUMPY IDLE |
$424.99 |
099
sound byte
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DUR @ .004" 294* / 302* DUR @ .050" 232*/ 240* LIFT .551/.551 OVERLAP 64* LSA 117* |
"BIG INCHER" POWER RANGE 2200 TO 6800 PROVIDES VERY HIGH POWER GAINS BIG INCH CAMSHAFT TUNING REQUIRED CHOPPY IDLE |
$424.99 |
043
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DUR @ .004" 272*/280* DUR @ .050" 210*/218* LIFT .531/.531 OVERLAP 48* LSA 114* |
STREET / AUTOCROSS POWER RANGE 1700 TO 6000 PROVIDES VERY HIGH TORQUE GAINS MODERATE LIFT , RECOMMENDED FOR HIGH ANNUAL MILEAGE CARS LIGHT CHOPPY IDLE |
$424.99 |
112
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DUR @ .004" 272*/280* DUR @ .050" 210*/218* LIFT .551 / .551 OVERLAP 50* LSA 114* |
STREET / PERFORMANCE CAM POWER RANGE 1700 TO 6000 PROVIDES VERY HIGH TORQUE GAINS GOOD THROTTLE RESPONSE - LOADS OF "TORQUE" - HIGH LIFT LIGHT CHOPPY IDLE |
$424.99 |
056 sound byte |
DUR @ .004" 278*/ 286* DUR @ .050" 216*/ 224* LIFT .551/.551 OVERLAP 53* LSA 115* "THE BOSS FOR AUTOMATICS" |
"THE BOSS " STREET / STRIP CAM / AUTOCROSS POWER RANGE 2000 TO 6200 TUNING & STALL CONVERTER DESIRED PERFECT FOR SUPERCHARGERS POWERFUL CHOPPY IDLE |
$389.00
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066
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DUR @ .004" 282* / 286* DUR @ .050" 220*/ 224* LIFT .551/.551 OVERLAP 57* LSA 114* |
"STANGBANGER" STREET / STRIP / BUTT KICKING POWER RANGE 2400 TO 6500 TUNING & STALL CONVERTER REQUIRED POWERFUL CHOPPY IDLE |
$424.99 |
048 |
DUR @ .004" 286*/ 290* DUR @ .050" 224*/ 228* LIFT .551/.551 OVERLAP 55* LSA 116* |
DRAG & TRACK TIME POWER RANGE 2600 TO 6100 TUNING & STALL CONVERTER REQUIRED ROUGH IDLE |
$424.99 |
060 sound byte |
DUR @ .004" 290*/ 294* DUR @ .050" 228*/ 232* LIFT .551 / .551 OVERLAP 68* LSA 112* |
" THE BEAST " DRAG & TRACK TIME POWER RANGE 2700 TO 6500 TUNING & STALL CONVERTER REQUIRED MONSTER DYNO NUMBERS ROUGH IDLE |
$424.99 |
049
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DUR @ .004" 290*/ 294* DUR @ .050" 228*/ 232* LIFT .600 /.600 OVERLAP 68* LSA 112* |
DRAG & TRACK TIME POWER RANGE 2700 TO 6500 TUNING & STALL CONVERTER REQUIRED MONSTER DYNO NUMBERS ROUGH IDLE |
$424.99 |
041 |
DUR @ .004" 290*/ 298* DUR @ .050" 228*/ 236* LIFT.600/.600 OVERLAP 66* LSA 114* |
STROKER EXTREME POWER RANGE 2700 TO 6500 TUNING & STALL CONVERTER REQUIRED ROUGH IDLE |
$424.99 |
051
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DUR @ .004" 294*/ 302* DUR @ .050" 232*/ 240* LIFT .600/.600 OVERLAP 76* LSA 110* |
EXTREME DRAG POWER RANGE 3100 TO 6600 TUNING & STALL CONVERTER REQUIRED ROUGH IDLE |
$424.99 |
050
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DUR @ .004" 298*/ 302* DUR @ .050" 236*/ 240* LIFT .600/.600 OVERLAP 78 LSA 112 |
STROKER EXTREME DRAG POWER RANGE 3100 TO 6600 TUNING & STALL CONVERTER REQUIRED ROUGH IDLE |
$424.99 |
052 |
DUR @ .004" 298*/ 308* DUR @ .050" 236*/ 246* LIFT .600/.600 OVERLAP 77 LSA 113* |
STROKER EXTREME DRAG "2" POWER RANGE 3100 TO 6600 TUNING & STALL CONVERTER REQUIRED ROUGH IDLE |
$424.99 |
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591
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DUR @ .004" 286*/ 286* DUR @ .050" 224*/224* LIFT .551/.551 OVERLAP 58* LSA 114* |
"EXTREME" STREET / STRIP POWER RANGE 2600 TO 6500 TUNING & STALL CONVERTER REQUIRED HIGH DYNO NUMBERS ROUGH IDLE |
$424.99 |
100
sound byte
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DUR @ .004" 294* / 302* DUR @ .050" 232*/ 240* LIFT .600/.600 OVERLAP 64* LSA 117* |
"JUST ENOUGH" POWER RANGE 2200 TO 6800 PROVIDES VERY HIGH POWER GAINS BIG INCH CAMSHAFT TUNING REQUIRED CHOPPY IDLE |
$424.99 |
101 |
DUR @ .004" 298*/ 308* DUR @ .050" 236*/ 246* LIFT .600/.600 LSA 115* |
STROKER EXTREME NITROUS POWER RANGE 3100 TO 6600 TUNING & STALL CONVERTER REQUIRED WORKS VERY WELL WITH NITROUS ROUGH IDLE |
$424.99 |
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044T
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DUR @ .004" 278*/ 278* DUR @ .050" 216*/216* LIFT .551/.551 OVERLAP 48* LSA 115* |
"SINGLE TURBO" STREET / STRIP POWER RANGE 2200 TO 6300 TUNING & STALL CONVERTER REQUIRED POWERFUL CHOPPY IDLE |
$424.99 |
067TT
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DUR @ .004" 282*/ 286* DUR @ .050" 220*/224* LIFT .551/.551 OVERLAP 56* LSA 114* |
"TWIN TURBO" STREET / STRIP POWER RANGE 2400 TO 6500 TUNING & STALL CONVERTER REQUIRED POWERFUL CHOPPY IDLE |
$424.99
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102T
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DUR @ .004" 294*/ 290* DUR @ .050" 232*/228* LIFT .600/.600 OVERLAP 58* LSA 117* |
"SINGLE TURBO" L92 HEADS W/ STROKER STREET / STRIP POWER RANGE 2600 TO 6000 TUNING & STALL CONVERTER REQUIRED POWERFUL CHOPPY IDLE |
$424.99
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