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Norvin Single race bike first run
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<blockquote data-quote="davidd" data-source="post: 127160" data-attributes="member: 1177"><p>I know Greg has one of my cams. It is not my design, it is a John Renwick design, but when Megacycle made it for me some small changes were made and as a result I call it my cam so there is no confusion about the specs. It has 0.480" or so lift. Renwick's was a bit higher. It is also a long duration cam at 300 degrees. It works very high up in RPM. I shift at 7,000. In general, it's good for 3-4 bhp higher than the Mk2.</p><p></p><p>David Tompkins's race engine has a Mk2 in it and it is performing very well at 39 bhp with the Megacycle Mk2. With a little bit more tuning it could hit 40 bhp at the rear wheel, which is hard to beat.</p><p></p><p>Greg,</p><p></p><p>Very nicely done, as expected. It is good that you have GB Racing as a sponsor! Any photos of the ignition?</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 127160, member: 1177"] I know Greg has one of my cams. It is not my design, it is a John Renwick design, but when Megacycle made it for me some small changes were made and as a result I call it my cam so there is no confusion about the specs. It has 0.480" or so lift. Renwick's was a bit higher. It is also a long duration cam at 300 degrees. It works very high up in RPM. I shift at 7,000. In general, it's good for 3-4 bhp higher than the Mk2. David Tompkins's race engine has a Mk2 in it and it is performing very well at 39 bhp with the Megacycle Mk2. With a little bit more tuning it could hit 40 bhp at the rear wheel, which is hard to beat. Greg, Very nicely done, as expected. It is good that you have GB Racing as a sponsor! Any photos of the ignition? David [/QUOTE]
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Norvin Single race bike first run
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