4902826
tarmac rally - race
Citroën EW10J4S 180hp
I-4cyl 2.0L 16v DOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: hydro
hydro
duration @ 0.1mm
: 281°
281°
duration @ 1.0mm
: 237°
237°
valve lift
: 11.25mm
11.25mm
cam lift
:
lobe angle
: 104°
104°
timing @ 1.0mm
: 14° / 43°
42° / 15°
valve lift @ TDC
: 2.70mm
2.70mm
parts setup:
cam wheels :
: View CTPE002
: View CTPE002
follower
: O.E.M.
: O.E.M.
valve lash
: O.E.M.
: O.E.M.
valve
: O.E.M.
: O.E.M.
valve locks
: O.E.M.
: O.E.M.
upper retainer
: View 99410/s
: View 99410/s
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-S90015
: View PAC-S90015
interior spring
fitted load / length
: 30kg @ 38.0mm
: 30kg @ 38.0mm
max. load / lift
: 79kg @ 13.0mm
: 79kg @ 13.0mm
REMARKS :
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Inlet Valves:
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View9249003 d6.00 // D35.0 // L106.1
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Exhaust Valves:
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View9249004 d6.00 // D31.0 // L102.9
REMARKS :
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The intake camshaft is similar to the exhaust camshaft to fit two adjustable (non VVT) pulleys.
When ordering, replace '4901xxx' by '4902xxx' (eg: 4901902 > 4902902)
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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
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evolution of 4902806