4902501
tarmac rally - race
Citroën ET3J4
I-4cyl 1.4L 16v DOHC (RPRH/RPRH)
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intake
exhaust
camshaft data:
lash ramp
: hydro
hydro
duration @ 0.1mm
: 286°
279°
duration @ 1.0mm
: 240°
232°
valve lift
: 11.80mm
11.05mm
cam lift
: 5.55mm
5.20mm
lobe angle
: 106°
106°
timing @ 1.0mm
: 12° / 48°
44° / 8°
valve lift @ TDC
: 2.25mm
1.85mm
parts setup:
cam wheels :
:
:
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 99440/s
: View 99440/s
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-I99891
: View PAC-I99891
interior spring
fitted load / length
: 27kg @ 34.5mm
: 27kg @ 34.5mm
max. load / lift
: 48kg @ 12.0mm
: 48kg @ 12.0mm
REMARKS :
REMARKS :
#
The intake camshaft is similar to the exhaust camshaft to fit two adjustable (non VVT) pulleys
#
FOR COMPETITION APPLICATIONS ONLY. Following details must be verified:
-
the camshafs must turn smooth in the cylinderhead, provide free travel by machining where needed
-
distance between valve seal and retainer at full lift must be 0.6mm at least
-
minimum valve spring travel of 1.0mm at full lift must be provided
-
distance between valve and piston 1.0mm (pref. 1.5mm). check 5-15° before TDC on exhaust, and after TDC on intake
#
ONLY for use in competition engines with independent engine management (throttle position sensor) or carburettors