4631103
hot street - dirt track
Opel CIH
I-6cyl 3.0L 12v SOHC (FTH/FTH)
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intake
exhaust
camshaft data:
lash ramp
: 0.30mm
0.30mm
duration @ 0.1mm
: 315°
312°
duration @ 1.0mm
: 261°
259°
valve lift
: 11.80mm
11.75mm
cam lift
: 7.90mm
7.85mm
lobe angle
: 108°
108°
timing @ 1.0mm
: 23° / 58°
58° / 21°
valve lift @ TDC
: 3.40mm
3.30mm
parts setup:
cam wheels :
: View TOPCIH
: View TOPCIH
follower
: View CAT046
: View CAT046
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
: O.E.M.
: O.E.M.
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-S90006
: View PAC-S90007
interior spring
fitted load / length
: 0kg @ 0.0mm
: 0kg @ 0.0mm
max. load / lift
: 0kg @ 0.0mm
: 0kg @ 0.0mm
REMARKS :
#
in most engines, the std valve springs can be replaced by PAC-S99006 (intake) and PAC-S99007 (exhaust) without further modifications.
REMARKS :
#
- steel billet camshafts
#
Valve lift and timing specifications assume fixed rocker arm ratio of RR1,500. This can be obtained by replacing the O.E.M. rocker arms by the Catcams Roller rocker arms.
#
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