2290720
tarmac rally - race
Ford ZH16S Sigma, 99hp
I-4cyl 1.6L 16v DOHC (DTs/DTs)
intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 276°
268°
duration @ 1.0mm
: 238°
230°
valve lift
: 9.50mm
9.00mm
cam lift
: 9.50mm
9.00mm
lobe angle
: 106°
106°
timing @ 1.0mm
: 13° / 45°
41° / 9°
valve lift @ TDC
: 2.55mm
2.15mm
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-I99891
: View PAC-I99891
interior spring
fitted load / length
: 26kg @ 35.0mm
: 26kg @ 35.0mm
max. load / lift
: 47kg @ 12.0mm
: 47kg @ 12.0mm
REMARKS :
#
if required, use extra shim on the lower retainer for increased load
REMARKS :
#
for engines with 28mm cam followers / 25mm lash adjustment shims (between cam and follower), please contact Cat Cams if different
#
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
#
machining of cylinder head can be required at camlobes