1300725
hot street - dirt track
Bmw M30 150hp
I-6cyl 2.5L 12v SOHC (RP/RP)
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intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 297°
297°
duration @ 1.0mm
: 256°
256°
valve lift
: 10.55mm
10.55mm
cam lift
: 8.60mm
8.60mm
lobe angle
: 110°
110°
timing @ 1.0mm
: 23° / 53°
53° / 23°
valve lift @ TDC
: 3.45mm
3.45mm
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
: O.E.M.
: O.E.M.
interior spring
fitted load / length
: 31kg @ 37.0mm
: 31kg @ 37.0mm
max. load / lift
: 86kg @ 11.5mm
: 86kg @ 11.5mm
REMARKS :
#
original valve spring info is not available
#
larger excenter discs (part number "99019" - D18mm) available to adjust valve clearance for camshafts with reduced cam base diameter
#
Cat Cams steel billet rocker arms (part number "CAT021") are strongly advised for use over 7000rpm
REMARKS :
#
13007xx: pre motronic
13008xx: motronic 1
13009xx: motronic 2
BMW_M10-M30_rocker_arm.gif NOW AVAILABLE: CATCAMS steel billet rocker arms (coated) with original Mahle valve adjustment screws !!!
#
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 dirt track applications and pro street use with adjustable engine management or carburettors