For most of us in the tuning market, warranty claims become a huge hassle when the dealer denies service based on modifications. Although some dealers are “mod-friendly”, service managers come and go and usually the hook-ups don’t last long. In the aftermarket world, tuning companies looking to offer a factory […]
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Science of Performance Spark Plugs
Today’s performance spark plugs perform feats never before attempted by spark plugs of years past. Factory engines and race engines are pushing more horsepower per liter than ever before thanks in part to forced induction and direct injection. Both of these technologies put an additional stress on the engine’s ignition […]
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Nano Paint Protection
Prudence demands that you protect your investments. When that investment is your vehicle’s paint, it’s easy to see how difficult it is to defend. Rock chips, oxidation, ultraviolet light, bird droppings, sap, tar, brake dust…the list is long and harrowing. Fortunately, paint-protection technology has come a long way. Prior to […]
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Science of Boost, Part 1: Solenoids
Like cayenne pepper on a mushroom risotto, boost pressure is the seasoning in a serving of turbocharged performance. Too little boost hampers performance and produces a bland dish, while too much boost, like too much seasoning, kills your engine and puts you back in the kitchen to start all over. […]
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Final Results
THE NUMBERS GAME When we arrange all of the tested camshafts by the actual measured intake duration at 1mm, an interesting trend is revealed. The trend is that every manufacturer has a different method of computing its”advertised” duration of the camshaft. As a result, not all camshafts advertised as “264” […]
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TOMEI POWERED 290
MANUFACTURER: TOMEI POWERED ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1454290115 CAMSHAFT PN# (EXHAUST):1455290115 SPEC CARD# : GSC-6008S3 INTAKE EXHAUST CAM TIMING EVENTS Centerline 110° 115° Valve Opening @ 1.0mm 6.1° BTDC 59.7° BBDC Valve Opening @ 0.050″ 2.53° BTDC 56.1° BBDC Valve Closing @ 1.0mm 55.8° ABDC 0.7° ATDC Valve Closing […]
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GSC S3
MANUFACTURER: GSC Power Division ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: GSC-6008S3 SPEC CARD#: N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline 109° 115° Valve Opening @ 1.0mm 3.8° BTDC 53.8° BBDC Valve Opening @ 0.050″ 0.4° BTDC 50.2° BBDC Valve Closing @ 1.0mm 51.5° ABDC 4.8° BTDC Valve Closing @ 0.050″ 47.5° ABDC […]
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Kelford Cams 280
MANUFACTURER: Kelford Cams ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: 8-TX280 SPEC CARD#: 133933 INTAKE EXHAUST CAM TIMING EVENTS Centerline 107° 113° Valve Opening @ 1.0mm 1.8° BTDC 47.6° BBDC Valve Opening @ 0.050″ 1.7° ATDC 43.9° BBDC Valve Closing @ 1.0mm 41.4° ABDC 4.4° BTDC Valve Closing @ 0.050″ 37.6° ABDC 7.9° […]
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GSC R2
MANUFACTURER: GSC Power Division ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: GSC-6008R2 SPEC CARD#: N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline 109° 115° Valve Opening @ 1.0mm 2.46° ATDC 56.94° BBDC Valve Opening @ 0.050″ 0.97° ATDC 52.96° BBDC Valve Closing @ 1.0mm 50.19° ABDC 4.38° BTDC Valve Closing @ 0.050″ 46.17° ABDC […]
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TOMEI POWERED 280
MANUFACTURER: TOMEI POWERED ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1453280115 CAMSHAFT PN# (EXHAUST):1455280115 SPEC CARD# : GSC-6008S3 INTAKE EXHAUST CAM TIMING EVENTS Centerline 110° 115° Valve Opening @ 1.0mm 1.0° ATDC 56.4° BBDC Valve Opening @ 0.050″ 2.5° ATDC 52.6° BBDC Valve Closing @ 1.0mm 51.4° ABDC 4.0° BTDC Valve Closing […]
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JUN 272
MANUFACTURER: JUN ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1004M-M012 CAMSHAFT PN# (EXHAUST): 1004M-M142 SPEC CARD# : N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline 110° 110° Valve Opening @ 1.0mm 7.3° ATDC 38.9° BBDC Valve Opening @ 0.050″ 10.6° ATDC 35.6° BBDC Valve Closing @ 1.0mm 39.4° ABDC 7.3° BTDC Valve Closing […]
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Buschur Racing 272
MANUFACTURER: Buschur Racing ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): BF272 SPEC CARD# (INTAKE): N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline N/A N/A Valve Opening @ 1.0mm 0.2° ATDC 52.2° BBDC Valve Opening @ 0.050″ 3.3° ATDC 48.5° BBDC Valve Closing @ 1.0mm 46.3° ABDC 4.8° BTDC Valve Closing @ 0.050″ 42.8° […]
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TOMEI POWERED 270
MANUFACTURER: TOMEI POWERED ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN# (INTAKE): 1454270115 CAMSHAFT PN# (EXHAUST):1455270115 SPEC CARD# : N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline 110° 115° Valve Opening @ 1.0mm 2.6° ATDC 52.2° BBDC Valve Opening @ 0.050″ 6.0° ATDC 48.5° BBDC Valve Closing @ 1.0mm 47.6° ABDC 7.5° BTDC Valve Closing […]
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Kelford Cams 272
MANUFACTURER: Kelford Cams ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: 8-TX272 SPEC CARD#: 133942 INTAKE EXHAUST CAM TIMING EVENTS Centerline 107° 113° Valve Opening @ 1.0mm 1.8° BTDC 47.6° BBDC Valve Opening @ 0.050″ 1.7° ATDC 43.9° BBDC Valve Closing @ 1.0mm 41.4° ABDC 4.4° BTDC Valve Closing @ 0.050″ 37.6° ABDC 7.9° […]
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GSC S2
MANUFACTURER: GSC Power Division ENGINE MODEL: 4G63 EVO 8 CAMSHAFT PN#: GSC-6008S2 SPEC CARD#: N/A INTAKE EXHAUST CAM TIMING EVENTS Centerline 107° 113° Valve Opening @ 1.0mm 3.1° ATDC 45.7° BBDC Valve Opening @ 0.050″ 0.6° ATDC 42.3° BBDC Valve Closing @ 1.0mm 39.3° ABDC 3.8° BTDC Valve Closing @ 0.050″ 35.7° ABDC […]
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