1032401
tarmac rally - race
Alfa Romeo
B-4cyl 1.7L 8v SOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: 0.20mm
0.30mm
duration @ 0.1mm
: 294°
288°
duration @ 1.0mm
: 254°
245°
valve lift
: 11.65mm
11.25mm
cam lift
:
lobe angle
: 106°
106°
timing @ 1.0mm
: 21° / 53°
49° / 16°
valve lift @ TDC
: 3.90mm
3.30mm
parts setup:
cam wheels :
:
:
follower
: View CC007
: View CC007
valve lash
: View TS103
: View TS103
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-E95009
: View PAC-E95009
interior spring
: View PAC-I92009
: View PAC-I92009
fitted load / length
: 38kg @ 33.8mm
: 42kg @ 32.8mm
max. load / lift
: 110kg @ 14.0mm
: 110kg @ 13.0mm
REMARKS :
REMARKS :
#
- steel billet camshafts
- big bearing dimensions: 34.94 - 47.94 - 49.14mm
- cam followers: hydraulic
#
- valve clearance is to be adjusted using mechanical lash caps
-
please make sure that the lash cap does not touch the valve locks !
#
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