Page 276 - VSI Master Catalog

MEGA-CAM OVAL TRACK RACING CAMSHAFTS
• ISKY Mega cam line was designed to produce more power over a broader RPM range giving the racer more horsepower without sacrificing low-end performance.
420 Lift Rule Class, 1/4 – 3/8 Mile Track with Slight Bank ISK201LR1 415/.415 264/264
420 Lift Rule Class, 3/8 – 1/2 Mile Track with Bank ISK201LR3 415/.415 280/280
Hobby Stock & Street Stock, 1/4 – 3/8 Mile Tracks ISK201281/6 .485/.485 280/280
• Will give your race car the performance to gain top end horse-power and creating a truly versatile line of performance.
Valve Lift
Adv. Dur
.050 Dur
Lobe
RPM
Int./Exh.
Int./Exh.
Int./Exh.
C.L.
Range
SB CHEVY 283-400/ Hydraulic Camshaft
Stock Lift Class, 3/8 – 1/2 Mile Track with Slight Bank
ISK201SL2
390/.410
276/280
236/240
106°
2400-6800
224/224 107° 240/240 106° 232/232 108°
2000-6200 2500-6800 2500-6800 2800-7000 2700-7000
2600-7000 3000-7200 3000-7000
420 Lift Rule Class, 1/4 – 3/8 Mile Track with Bank
ISK201LR2
415/.415
272/272
232/232
106°
2400-6600
420 Lift Rule Class, 1/2 Mile Track with High Bank
ISK201LR4
420/.420
296/296
248/248
105°
3000-7200
450 Lift Rule Class, 1/4 – 3/8 Mile Track with Bank
ISK201278
450/.450
278/278
234/234
106°
2500-6800
.450 Lift Rule Class, 3/8 – 1/2 Mile ISK201288 .450/.450
Sportsman Classes, Banked 3/8–1/2 Mile Oval/5.7-5.85” Rod Length
ISK201546 .545/.555 278/282 250/254 106°
Banked 3/8 – 1/2 Mile Tracks, Any Carb, Very Broad Power Range
ISK201549 547/.555 288/296 258/263 106°
IMCA/Wissota Modified Class, Banked 1/4 – 3/8 Mile Tracks, 2BBL Carb
ISK201506 505/.505 290/290 254/254 108°
SP SERIES HIGH ENDURANCE VALVE SPRINGS
Track with High Bank
288/288 244/244 106°
Tracks
286/286 240/240 108° 1/4 – 3/8 Mile Tracks with Little or no Bank, 2BBL Carb
Hobby/Street Stock Class, 1/4 – 3/8 Mile Track with Slight Bank, 2bbl Carb
ISK201274
.490/.490
274/274
226/226
108°
2200-6500
Sportsman Classes, 3/8 – 1/2 Mile ISK201292 .500/.500
Sportsman Classes, 3/8 – 1/2 Mile Tracks
ISK201292/6
.500/.500
286/286
240/240
106°
2700-7000
SB CHEVY/ Solid Mechanical
ISK201524
524/.534
278/282
244/248
106°
2400-6600
1/4 – 3/8 Mile Tracks with Little or no Bank, 2BBL Carb
ISK201534
534/.525
282/288
248/254
106°
2600-6800
Banked 1/4 – 3/8 Mile Tracks, Any Carb
ISK201547
547/.548
288/292
254/259
106°
3000-7000
IMCA/Wissota Modified Class, Banked 3/8 – 1/2 Mile Fast Tracks, any Carb
ISK201CC2
525/.545
290/304
254/264
106°
3200-7000
SB CHEVY/ Roller Mechanical
Banked 1/4-3/8 Mile Tracks, with 5.7-5.85” Rod Length
ISK201536
535/.545
274/278
246/250
106°
2400-6800
• Dual with damper.
• The “SP” series utilizes “Hi-Tensile” chrome silicon outer spring material.
• For applications with radical cams and/or moderately high rpm, where traditional chrome silicon spring
prove inadequate, the “SP” series is the next highest level of endurance.
• All “SP” series spring are Spintron Test Proven up 8000 RPM for 700 racing miles. Set of 16.
Outer
Seat
Seat
Open
Coil
Max
Solid
O.D. / I.D.
O.D. / I.D.
Pressure
Pressure
Bind
Lift
ISK8005-SP
1.530 @ 1.110
1.005 @ .730
150 @ 1.875”
435 @ 1.255”
1.160"
.650”
Roller
ISK9365-SP
1.550 @ 1.135
1.025 @ .740
225 @ 1.950”
550 @ 1.270”
1.170”
.680”
274