1030321
hot street - dirt track
Alfa Romeo AR 67.301
V-6cyl 2.5L 12v SOHC (DT/FT)
intake
exhaust
camshaft data:
lash ramp
: 0.20mm
0.35mm
duration @ 0.1mm
: 282°
287°
duration @ 1.0mm
: 244°
238°
valve lift
: 11.50mm
10.15mm
cam lift
:
7.25mm
lobe angle
: 108°
108°
timing @ 1.0mm
: 14° / 50°
47° / 11°
valve lift @ TDC
: 2.95mm
2.50mm
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
:
PAC-E95009
:
PAC-E95009
interior spring
:
PAC-I95009
:
PAC-I95009
fitted load / length
: 36kg @ 34.0mm
: 36kg @ 34.0mm
max. load / lift
: 101kg @ 12.0mm
: 101kg @ 12.0mm
REMARKS :
#
Remove the extra shim of 1mm from the lower retainer.
REMARKS :
#
GTV: all data are measured on the valve and assume fixed rocker ratio of 1.4 on exhaust
#
ONLY for dirt track applications and pro street use with adjustable engine management or carburettors