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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modern Fuel & Ignition Advance
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<blockquote data-quote="davidd" data-source="post: 94933" data-attributes="member: 1177"><p>Despite the very good technical discussion, I still maintain that if you want the timing on your bike to be correct, you have to do what the Factory did. So far, few if any have done so. This certainly does not bother me, because it takes a lot of effort and some money to do dyno testing, but this is why the Factory had a dyno.</p><p></p><p>My understanding is that 34-36 degrees seems to be the area where most "regular" bikes have found good performance. I don't see anything wrong with this, except my own experience that seat of the pants analysis is often wrong regarding tuning performance.</p><p></p><p>My racer runs on premium pump gas straight out of any gas station pump here in the US. The two points I find interesting are first, the idea that you advance the timing to get more power vs. retarding the timing to get power; and the idea that if your Vincent engine is modified from stock, how do you determine what the advance curve should look like.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 94933, member: 1177"] Despite the very good technical discussion, I still maintain that if you want the timing on your bike to be correct, you have to do what the Factory did. So far, few if any have done so. This certainly does not bother me, because it takes a lot of effort and some money to do dyno testing, but this is why the Factory had a dyno. My understanding is that 34-36 degrees seems to be the area where most "regular" bikes have found good performance. I don't see anything wrong with this, except my own experience that seat of the pants analysis is often wrong regarding tuning performance. My racer runs on premium pump gas straight out of any gas station pump here in the US. The two points I find interesting are first, the idea that you advance the timing to get more power vs. retarding the timing to get power; and the idea that if your Vincent engine is modified from stock, how do you determine what the advance curve should look like. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Modern Fuel & Ignition Advance
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