7607312
tarmac rally - race
Volkswagen AAA
VR-6cyl 2.8L 12v DOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 301°
301°
duration @ 1.0mm
: 254°
254°
valve lift
: 12.50mm
12.50mm
cam lift
:
lobe angle
: 108°
108°
timing @ 1.0mm
: 19° / 55°
55° / 19°
valve lift @ TDC
: 3.65mm
3.65mm
parts setup:
cam wheels :
: View TVW034
:
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
: O.E.M.
: O.E.M.
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-E99860
: View PAC-E99860
interior spring
: View PAC-I99860
: View PAC-I99860
fitted load / length
: 31kg @ 33.0mm
: 31kg @ 33.0mm
max. load / lift
: 99kg @ 13.0mm
: 99kg @ 13.0mm
REMARKS :
#
check interference between valve seal and retainer over 10,5mm lift
REMARKS :
#
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 !
#
stand alone ECU based on throttle position sensor required