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Make:HONDA ROCKER RATIO 1.4:1 Model:CS XR Rc Xr 250- 500cc |
| Ivan Tighe Engineering Pty Ltd Tel (07) 3271 6001 Fax (07) 3271 6005 Email: sales@tighecams.com.au |
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Profile |
Advertised Timings |
DURATION |
VALVE LIFT |
TAPPET |
REMARKS |
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Ex Op. |
Ex Cl |
In Op. |
In Cl |
Advertised |
@ 0.050 |
Gross. |
@ T.D.C. |
Ex. |
In. |
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578 |
65 |
25 |
25 |
60 |
270 |
265 |
0.375 |
0.375 |
0.006 |
0.004 |
Standard 500cc |
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516 |
70 |
30 |
30 |
70 |
280 |
280 |
0.412 |
0.412 |
0.006 |
0.004 |
Mild |
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516X |
70 |
30 |
36 |
64 |
280 |
280 |
0.412 |
0.412 |
0.006 |
0.004 |
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356 |
72 |
34 |
41 |
75 |
286 |
294 |
0.435 |
0.500 |
0.008 |
0.006 |
Speedway |
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399 |
79 |
45 |
50 |
70 |
304 |
300 |
0.412 |
0.412 |
0.006 |
0.008 |
Speedway |
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Notes: -Profiles can be used on both 250cc and 500cc Xl and Xr engines.
-Valve springs are required on the 250cc engine at 0.412 lift.
-New camshafts available.