1603520
tarmac rally - race
Nissan SR20DE (T) roller rocker
I-4cyl 2.0L 16v DOHC (RP/RP)
intake
exhaust
camshaft data:
lash ramp
: hydro
hydro
duration @ 0.1mm
: 307°
298°
duration @ 1.0mm
: 258°
250°
valve lift
: 12.05mm
11.60mm
cam lift
: 12.05mm
11.60mm
lobe angle
: 106°
106°
timing @ 1.0mm
: 23° / 55°
51° / 19°
valve lift @ TDC
: 3.50mm
2.95mm
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-S90010
: View PAC-S90010
interior spring
fitted load / length
: 29kg @ 38.0mm
: 29kg @ 38.0mm
max. load / lift
: 88kg @ 13.0mm
: 88kg @ 13.0mm
REMARKS :
REMARKS :
#
camshaft only for use with roller rocker arms (NO slipper followers!) and without VVT system on intake camshaft
#
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