Fast Eddie
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- Joined
- Oct 4, 2013
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Can someone please share pics of their Maney crank mounted ign installed, preferably sans ‘cover’ ?
That's a great help!?One of my mates fitted the ignition system from a VT750 Honda to his 750SS Ducati. The crank-mounted trigger gave him difficulties. He was a motor mechanic, so had the engine analyser. He got it to advance properly. It improved the Ducati. He used the trigger from a Bosch distributor.- Hall Effect ?
As usual lol.That's a great help!?
At the moment I’m running an Interspan, a self contained total loss system that is just superb (thanks Chris). I’ve no experience with the brand you mention, but other on here do I think…off topic, are you running a total loss system? I've been revisiting the idea of the Electrixworld kit
I didn't get to do much more than run the motor in before it failed. Fundamentally, I believe that Steve did get an improvement that was worthwhile at the level he was riding at. With a Seeley he probably had more space inside the fairing than I did on the Rickman, or I reckon he would have done more to cut the thing down. Norman Whites' pick ups are much tidier. And so are the home brew ones I have seen that attach to the crankcases using a trigger as part of the inner side of the pulley. If I was going to bother with crank triggering again, I would want that type of solution, probably with an Ignitech box. But.....What did you replace it with Steve.
And what do you think to the claim of increased performance due to the increased accuracy of crank mounted ?
Good info, thanks.I didn't get to do much more than run the motor in before it failed. Fundamentally, I believe that Steve did get an improvement that was worthwhile at the level he was riding at. With a Seeley he probably had more space inside the fairing than I did on the Rickman, or I reckon he would have done more to cut the thing down. Norman Whites' pick ups are much tidier. And so are the home brew ones I have seen that attach to the crankcases using a trigger as part of the inner side of the pulley. If I was going to bother with crank triggering again, I would want that type of solution, probably with an Ignitech box. But.....
When it broke I just changed the pickup to a standard Boyer twin coil plate in the cam driven location. You can definitely see the strobe light moving around more due to the cam chain flex now in the loop. I can 'believe' that the better triggering accuracy adds a couple of HP, but when riding it doesn't seem much different.
And it ran fine, for at least a season, until Boyer pick up plates did what Boyer pick up plates do. Crappy crimp style electrical connections get annoying.
I also sat and figured that running half the intended advance curve might have some limitations.
So I changed the box and plate for a basic Pazon Surefire system, which I think of as the same thing as a Boyer, but better made using more recent electronic components. It has been reliable, but I have a spare box in the tool box. I have had to nip up the pickup wire screw in connections a couple of times. But once you know you need to do that after initial fit, and maybe check once in a while, it's fine.
No dramatic change. But the advance curve isn't a big issue on a race bike that spends more than 95% of it's time fully advanced! It may start better, but on rollers, not a big issue. I might worry more if I had to kick it. With a lower revving 1007 I still don't think the advance curve is going to make much difference, or that the lack of 2 HP max is going to show much.
I ran my 850 motor at full advance in the '70s, it works, and Thruxton did it. Fixed advance removes a variable.
I'm sure if you spent enough time on a dyno you would convince yourself you needed both crank triggered ignition and a bespoke curve on a programmable ignition. Or, just ride it! I have decided that as a 70 year old who may not get to ride much in future, this isn't the time for me to be worrying about fancy ignitions.
Well Interspan has sort of dropped out of the market, so your options include developing something!Good info, thanks.
Actually, my previous dyno experiments have led me to conclude that a few degrees either side of nominal is barely detectable on these old lumps. Similarly, I’ve run very happily with fixed advance before. Even having said that, I do like the idea of a very accurate ign, and a BIG spark.
So I think my idea of the ideal ignition is a self contained chargeable Interspan style, crank triggered with a fixed advance.
I’m not aware of such a thing though !
Indeed… which is why it ain’t likely to happen !Well Interspan has sort of dropped out of the market, so your options include developing something!![]()
Another PM started with you mate !Martin will make an Interspan to whatever spec we want. As long as we can supply the basic box to start. Luckily I have spares.