4610811
full race
Opel C20XE with distributor
I-4cyl 2.0L 16v DOHC (DTH/DTH)
Save to PDF
intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 317°
305°
duration @ 1.0mm
: 270°
262°
valve lift
: 13.50mm
13.00mm
cam lift
:
lobe angle
: 104°
104°
timing @ 1.0mm
: 31° / 59°
55° / 27°
valve lift @ TDC
: 5.25mm
4.70mm
parts setup:
cam wheels :
: View CSK5058
: View CSK5058
follower
: View CC004
: View CC004
valve lash
: View TS102
: View TS102
valve
: O.E.M.
: O.E.M.
valve locks
: O.E.M.
: O.E.M.
upper retainer
: View 99341
: View 99341
lower retainer
: remove
: remove
exterior spring
: View PAC-E12009
: View PAC-E12009
interior spring
: View PAC-I12009
: View PAC-I12009
fitted load / length
: 32kg @ 33.5mm
: 32kg @ 33.5mm
max. load / lift
: 102kg @ 14.0mm
: 102kg @ 14.0mm
REMARKS :
#
replace OEM lower retainer to obtain a correct installation / fitted length (currently not available)
REMARKS :
#
- profiles for conversion to mechanic race cam followers
- camshafts available in cast iron or optional gundrilled steel billet (short competition version without distributor drive end)
#
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