2340779
tarmac rally - race
Ford YBJ, YBG Cosworth 2WD
I-4cyl 2.0L 16v DOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 317°
305°
duration @ 1.0mm
: 270°
262°
valve lift
: 13.50mm
13.00mm
cam lift
:
lobe angle
: 105°
105°
timing @ 1.0mm
: 30° / 60°
56° / 26°
valve lift @ TDC
: 5.10mm
4.55mm
parts setup:
cam wheels :
: View CSK5119
: View CSK5119
follower
: View CC005
: View CC005
valve lash
: View TS102
: View TS102
valve
: O.E.M.
: O.E.M.
valve locks
: O.E.M.
: O.E.M.
upper retainer
: View 99366
: View 99366
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-E12009
: View PAC-E12009
interior spring
: View PAC-I12009
: View PAC-I12009
fitted load / length
: 38kg @ 33.0mm
: 38kg @ 33.0mm
max. load / lift
: 108kg @ 14.0mm
: 108kg @ 14.0mm
REMARKS :
REMARKS :
#
camshafts for atmospheric (naturally aspirated) engines
#
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
#
- valve clearance is to be adjusted using mechanical lash caps
-
please make sure that the lash cap does not touch the valve locks !
#
ONLY for use in competition engines with independent engine management (throttle position sensor) or carburettors