2501907
F.I.A.
Honda K20A
I-4cyl 2.0L 16v DOHC (RPR/RPR)
intake
exhaust
camshaft data:
lash ramp
: 0.35mm
: 0.35mm
duration @ 0.1mm
: 291°
(264-264)
: 288°
(263-263)
duration @ 1.0mm
: 251°
(223-223)
: 247°
(223-223)
valve lift
: 12.15mm
(7.25-7.25)
: 10.75mm
(7.20-7.20)
cam lift
: 7.00mm
(4.25-4.25)
: 6.20mm
(4.25-4.25)
lobe angle
: 106°
(106-106)
: 106°
(107-107)
timing @ 1.0mm
: 19° / 52°
: 49° / 18°
valve lift @ TDC
: 3.40mm
(1.80-1.80)
: 3.10mm
(1.95-1.95)
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
:
O.E.M.
fitted load / length
: 32kg @ 40.5mm
: 33kg @ 40.5mm
max. load / lift
: 82kg @ 12.5mm
: 86kg @ 11.5mm
REMARKS :
REMARKS :
#
-Use adjustable sprocket "THO025" to disable the intake VVT system
-Check interference between cam and rocker arm, modify rocker arm if required
#
FIA Gr.N. rallycross (A-B) homologation tolerances on all camlobes (FIA N-5646, FN-068, ext.01/01/VP, European homologation). ON SPECIAL DEMAND ONLY
#
FLAT NOSE cam design