5500632
tarmac rally - race
Renault J6, J7
I-4cyl 2.0L 8v SOHC (RP/RP)
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intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 318°
318°
duration @ 1.0mm
: 273°
273°
valve lift
: 12.50mm
12.50mm
cam lift
: 8.30mm
8.30mm
lobe angle
: 105°
105°
timing @ 1.0mm
: 32° / 61°
61° / 32°
valve lift @ TDC
: 4.55mm
4.55mm
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
: O.E.M.
: O.E.M.
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-S99843
: View PAC-S99843
interior spring
fitted load / length
: 39kg @ 36.5mm
: 39kg @ 36.5mm
max. load / lift
: 95kg @ 13.0mm
: 95kg @ 13.0mm
REMARKS :
#
check distance between valve seal and retainer to be at least 0.6mm at full lift
#
use additional spacer under lower retainer to obtain correct fitted length (approx. 3mm)
REMARKS :
#
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