Inductive Suppression HT leads.

iis_iis

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NSW
There is a best method of HT suppression, done in the days of racing cars with onboard outside broadcast live feed, in car camera's and sound. Highly susceptible to RFI, these onboard live feed devices.

Mentioned previous, Magnecor HT leads and SS termination hardware, water proof boots and covers. Since there is noticeable uptake of tower or socket style "car" ignition coils you have options over the usual 5Kohm covers and or resistor spark plugs. Used Magnecor in the past, tooled up for 10, 8, 7 mm diameter inductive suppressed HT leads on my Laverda in the day.

The end on end DC resistance is low, less than 100Ohms or even 10ohms, yet what is important, the impedance to fast rising current in the secondary winding of the ignition coil. This is correctly achieved with inductive reactance, it opposes fast changes in current put simply, without introducing high resistance into the HT lead, resistance is a DC parameter, Impedance is for AC parameter, in a broad sense. Your ignition is ostensibly an AC in execution phase, DC for primary saturation ie two distinct modes in the ignition operation overall.

Include the Euro URL for further information. 7m/m inductive HT lead is ideal for the Laverda application, you can use larger diameters as desired. The actual terminating SS clips are superb, Ditto the rubber items. HTH j

 
On the money Cam, i would give you the prize in cash, ATM does not work here after i pulled out the power lead... j
 
Perhaps a question to beg, what happens with Inductive HT lead and a resistor type spark plug, should all that can be procured is say, NGK "R" series.

Would not call it ideal, though at the spark plug gap inside a fully compressed cylinder load, some required 25KV ( 25000/5000 simplified 250/5 ) yields 50mA of ionic strike current, or 250V voltage drop simplified, assuming the spark plug gap has zero impedance ( it does but not completely at the instant of flame front initiation ).

You lose 250V from 25000V in broad low tech assumptions. Should not be an issue, R plug on Inductive HT lead. More ramble...its been raining for 5 days here, sharing the lack of shed time... lucky lot you all are. j
 
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