1013658
hot street - dirt track
Audi ADR atmo engines
I-4cyl 1.8L 20v DOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: hydro
hydro
duration @ 0.1mm
: 268°
263°
duration @ 1.0mm
: 227°
217°
valve lift
: 9.25mm
9.95mm
cam lift
:
lobe angle
: 110°
108°
timing @ 1.0mm
: 4° / 43°
37° / -0°
valve lift @ TDC
: 1.30mm
0.95mm
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-S90013
: View PAC-E92009
interior spring
: View PAC-I92009
fitted load / length
: 23kg @ 34.6mm
: 34kg @ 33.1mm
max. load / lift
: 68kg @ 12.0mm
: 96kg @ 12.5mm
REMARKS :
#
check distance between valve seal and retainer to be at least 0.6mm at full lift
REMARKS :
#
- chilled cast iron camshafts
- supplied with adjustable chain sprocket on the exhaust cam to optimize intake cam timing
(also available with 2 non adjustable chain sprockets at reference cam timing: partnumber 10156xx hydraulic or 10157xx mechanical)
#
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
#
for TURBO conversion (atmospheric to turbo)