Make:HONDA                       ROCKER RATIO –BUCKET ONLY

Model:CS CBR                     TWIN CAM
Ivan Tighe Engineering Pty Ltd

Tel (07) 3271 6001
Fax (07) 3271 6005

Email: sales@tighecams.com.au


Profile
Number

Advertised Timings

DURATION

VALVE LIFT

TAPPET
CLEARANCE

REMARKS
 

Ex Op.
B.B.D.C.

Ex Cl
A.T.D.C

In Op.
B.T.D.C.

In Cl
A.B.D.C

Advertised

@ 0.050”

Gross.

@ T.D.C.

Ex.

In.

  

858C

60

20

25

55

260

260

220

220

0.330”

0.330”

    

0.012”

0.010”

Standard CB900
1097

27

58

25

55

265

260

226

226

0.309”

0.320”

    

0.010”

0.008”

Standard Fire Blade

347C

24

60

28

58

264

264

    

0.340”

0.340”

    

0.010”

0.008”

Torque Mid Range

490C

30

62

34

58

272

272

    

0.365”

0.365”

    

0.010”

0.008”

  

486

61

33

36

58

274

274

    

0.365”

0.382”

    

0.010”

0.008”

  

253B

66

38

42

62

284

284

    

0.384’

0.384”

    

0.008”

0.008”

Fast Road

1

70

42

44

68

292

292

    

0.354’

0.380”

    

0.010”

0.008”

Road Race

Notes:             -Profiles suit in 4 Cylinder engines with bucket actuation only.

                          -Please enquire if these profiles do not suit, this is only the more

                           common.