REMARKS :
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- steel billet camshafts
- flat crank race cams available
- more profiles available
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two different tappet sizes are used:
a) 35.0mm/1.378" tappets (ABZ & AEM for A8 4.2l; AEC for S6 4.2l)
b) 33.5mm/1.319" tappets (other)
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for use on both 33.5mm/1.319" and 35mm/1.378" tappets
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supplied with adjustable gear set on steel lightweight billets
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- valve clearance is to be adjusted using mechanical lash caps
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please make sure that the lash cap does not touch the valve locks !
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FOR COMPETITION APPLICATIONS ONLY. Following details must be verified:
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the camshafs must turn smooth in the cylinderhead, provide free travel by machining where needed
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distance between valve seal and retainer at full lift must be 0.6mm at least
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minimum valve spring travel of 1.0mm at full lift must be provided
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distance between valve and piston 1.0mm (pref. 1.5mm). check 5-15° before TDC on exhaust, and after TDC on intake
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ONLY for use in competition engines with independent engine management (throttle position sensor) or carburettors