5501608
tarmac rally - race
Renault J7R, J7T
I-4cyl 2.0L 12v SOHC (RP/RP)
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intake
exhaust
camshaft data:
lash ramp
: 0.30mm
0.30mm
duration @ 0.1mm
: 305°
302°
duration @ 1.0mm
: 261°
260°
valve lift
: 12.45mm
11.85mm
cam lift
: 5.65mm
5.65mm
lobe angle
: 105°
105°
timing @ 1.0mm
: 26° / 55°
55° / 25°
valve lift @ TDC
: 4.35mm
4.10mm
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 99337
: View 99337
lower retainer
: not available
: not available
exterior spring
: View PAC-E92009
: View PAC-E92009
interior spring
: View PAC-I92009
: View PAC-I92009
fitted load / length
: 34kg @ 32.5mm
: 34kg @ 32.5mm
max. load / lift
: 100kg @ 13.0mm
: 100kg @ 13.0mm
REMARKS :
#
check distance between valve seal and retainer to be at least 0.6mm at full lift
#
replace OEM lower retainer to obtain a correct installation / fitted length (currently not available)
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