ceebmoj
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| posted on 20/2/12 at 09:09 PM |
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Fireblade speedo Pulses
Does any body know the number of pulses the Fireblade speed sender outputs per revolution?
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mark chandler
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| posted on 20/2/12 at 10:26 PM |
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You will need 9 magnets on the propshaft if running 919 blade clocks with 185/60/13 tyres and 3.65 diff.
That will get you pretty close to true speed 
Mine then all flew off 
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ceebmoj
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| posted on 21/2/12 at 12:27 AM |
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How did you work it out? I presume I can connect a multi meta and count the pulses as I turn the shaft by hand?
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wylliezx9r
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| posted on 21/2/12 at 08:48 AM |
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You won't pick up the pulses on a multimeter. You would need an oscilloscope, the pulse widths will most likely be mili seconds, a multimeter
or your eye cannot pick that up.
I spent a lot of money on booze, birds and fast cars. The rest I just squandered.
George Best
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ReMan
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| posted on 21/2/12 at 01:39 PM |
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Which speedo sensor?
www.plusnine.co.uk
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mark chandler
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| posted on 21/2/12 at 04:37 PM |
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I worked out prop RPM to road speed then ran my lathe at the equivilent of 60mph
Stuck a bit of 2" scaffold pole into the chuck and added magnets until the speedo read 60mph
Also with this gearing 125mph ~ 12,500rpm in 6th so you can see you are pretty close until the magnets fly off
For the sensor I used a ABS pickup from the sierra I think, may have been a range rover one as I had some of these laying around.
You do not need magnets BTW just lumps on metal, I need to make a thin plate and sandwich between the prop adaptor and prop really
Regards Mark
[Edited on 21/2/12 by mark chandler]
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