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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
identifying cams
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<blockquote data-quote="davidd" data-source="post: 22692" data-attributes="member: 1177"><p>With all of the performance cams you have to modify your engine. You will have to check that the lobes do not interfere with the exhaust lifting mechanism abuttments and often you have to grind out material in the head for increased lift. This is true of the 105 cams also. I know of at least one very unhappy owner who did not check the clearances.</p><p> </p><p>The MK2 is known for performance with a straight pipe. Ian Hamilton designed the 105 to be a MK2 that would work with a silencer, so the differences are probably noticeable, but not dramatic. The 105 refers to the Lobe Separation Angle or LSA and I believe a MK2 has an LSA around 97 or 98.</p><p> </p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 22692, member: 1177"] With all of the performance cams you have to modify your engine. You will have to check that the lobes do not interfere with the exhaust lifting mechanism abuttments and often you have to grind out material in the head for increased lift. This is true of the 105 cams also. I know of at least one very unhappy owner who did not check the clearances. The MK2 is known for performance with a straight pipe. Ian Hamilton designed the 105 to be a MK2 that would work with a silencer, so the differences are probably noticeable, but not dramatic. The 105 refers to the Lobe Separation Angle or LSA and I believe a MK2 has an LSA around 97 or 98. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
identifying cams
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