2290313
tarmac rally - race
Audi NM atmospheric
I-5cyl 2.0L 20v DOHC (DTH/DTH)
intake
exhaust
camshaft data:
lash ramp
: 0.25mm
0.25mm
duration @ 0.1mm
: 302°
294°
duration @ 1.0mm
: 256°
248°
valve lift
: 11.20mm
10.80mm
cam lift
: 11.20mm
10.80mm
lobe angle
: 106°
106°
timing @ 1.0mm
: 22° / 54°
50° / 18°
valve lift @ TDC
: 3.55mm
3.15mm
parts setup:
cam wheels :
:
:
follower
:
:
valve lash
:
:
valve
:
:
valve locks
:
:
upper retainer
: View 99312/H
: View 99312/H
lower retainer
:
:
exterior spring
: View PAC-E99862
: View PAC-E99862
interior spring
fitted load / length
: 29kg @ 35.0mm
: 29kg @ 35.0mm
max. load / lift
: 80kg @ 12.0mm
: 80kg @ 12.0mm
REMARKS :
REMARKS :
#
for 2nd generation engines with mechanic tappets 30mm / shim 27.5mm on top, tripple groove valves and conical valve springs (from '98)
#
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 use in competition engines with independent engine management (throttle position sensor) or carburettors