1304260
tarmac rally - race
Bmw M52 B28 192hp, vanos in
I-6cyl 2.8L 24v DOHC (DTH/DTH)
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intake
exhaust
camshaft data:
lash ramp
: 0.20mm
0.20mm
duration @ 0.1mm
: 290°
282°
duration @ 1.0mm
: 252°
244°
valve lift
: 12.00mm
11.50mm
cam lift
:
lobe angle
: 106°
106°
timing @ 1.0mm
: 20° / 52°
48° / 16°
valve lift @ TDC
: 3.75mm
3.20mm
parts setup:
cam wheels :
:
:
follower
: View CC002
: View CC002
valve lash
: View TS101
: View TS101
valve
: O.E.M.
: O.E.M.
valve locks
: O.E.M.
: O.E.M.
upper retainer
: View 99468/s
: View 99468/s
lower retainer
: O.E.M.
: O.E.M.
exterior spring
: View PAC-S99843
: View PAC-S99843
interior spring
fitted load / length
: 35kg @ 37.5mm
: 35kg @ 37.5mm
max. load / lift
: 95kg @ 14.0mm
: 95kg @ 14.0mm
REMARKS :
REMARKS :
#
- steel billet camshafts
#
- 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
#
VVT reprogramming, operating range adjustment or even eliminating the VVT system should be considered for camshafts with increased duration
#
valve lift and timing data are illustrated on fixed centerline (disabled VVT system)
#
Before camshaft installation: please remove the cam carriers and fit the new camshafts in the empty cam carriers to check interference with the cam lobes. Modify the cam carriers if required.
#
ONLY for use in competition engines with independent engine management (throttle position sensor) or carburettors