4003617
tarmac rally - race
Mercedes M113.987 .987 .988 .989
V-8cyl 5.4L 24v SOHC (RPRH/RPRH)
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intake
exhaust
camshaft data:
lash ramp
: hydro
hydro
duration @ 0.1mm
: 314°
314°
duration @ 1.0mm
: 252°
252°
valve lift
: 12.75mm
12.75mm
cam lift
: 8.90mm
8.90mm
lobe angle
: 110°
110°
timing @ 1.0mm
: 16° / 56°
56° / 16°
valve lift @ TDC
: 2.80mm
2.80mm
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 99572
: View 99572
lower retainer
: View 99593/O
: View 99593/O
exterior spring
: View PAC-E92009
: View PAC-E92009
interior spring
: View PAC-I92009
: View PAC-I92009
fitted load / length
: 35kg @ 34.0mm
: 35kg @ 34.0mm
max. load / lift
: 104kg @ 14.0mm
: 104kg @ 14.0mm
REMARKS :
#
machining of cylinder head required
REMARKS :
#
OEM data for M113.987 .988 .989
camshaft partnumber:
A113 050 89 01
A113 050 90 01
#
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