hks cam valve events

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Apr 24, 2006 | 06:16 PM

91z28-350

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From: CA

hks cam valve events

Does anyone know the valve events and centerlines of the HKS cams, particularly the 264 and 272 sets?

Thanks much!

Apr 24, 2006 | 06:27 PM

Ted B

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HKS 264:
Duration of 264 deg
Duration of 206 deg @ 1mm
Lift of 10.8mm intake / 10.2mm exhaust
Stock valve springs OK

HKS 264 Intake

duration @ 1mm is 206 degrees for 264 intake cam.
opens @ 5 degree btdc
max lift @ 110 degrees atdc
closes @ 31 degree abdc

HKS 264 Exhaust

duration @1mm: 206*
open: 30* bbdc
close: 4* atdc
max lift: 110* atdc

HKS 272:
Duration of 272 deg
Duration of 214 deg @ 1mm
Lift of 10.8mm intake / 10.2mm exhaust
Stock valve springs OK

HKS 272 Intake:

Duration @1mm: 214
Opens: 9 degrees BTDC
Closes: 35 degrees ABDC

HKS 272 Exhaust

Duration @1mm: 214
Opens: 34 degrees BBDC
Closes: 8 degrees ATDC

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