2500414
tarmac rally - race
Honda D16A9/Z5 129 hp
I-4cyl 1.6L 16v DOHC (RP/RP)
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intake
exhaust
camshaft data:
lash ramp
: 0.35mm
0.35mm
duration @ 0.1mm
: 330°
330°
duration @ 1.0mm
: 258°
258°
valve lift
: 12.20mm
12.20mm
cam lift
: 6.80mm
6.80mm
lobe angle
: 106°
106°
timing @ 1.0mm
: 24° / 54°
54° / 24°
valve lift @ TDC
: 3.90mm
3.90mm
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 99412
: View 99412
lower retainer
: View 99538/O
: View 99539/O
exterior spring
: View PAC-S90015
: View PAC-S90015
interior spring
fitted load / length
: 31kg @ 37.5mm
: 31kg @ 37.5mm
max. load / lift
: 79kg @ 12.5mm
: 79kg @ 12.5mm
REMARKS :
#
check distance between valve seal and retainer to be at least 0.6mm at full lift
#
use 'GOLD quality' springs for applications over 12.5mm valve lift / 8500rpm
REMARKS :
#
we can repair the rocker arms if the wear is not excessive
#
engine with rocker arms
#
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