Fitting a Nology ign coil, some advice needed..

campbellju

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P.S. with a secondary ignition amplifier, the OEM ignition transistor just becomes a low power switch.
 

warpspeed

Well-Known Member
Lpg vapour system runs at 1.2bar and that's the system I'll be trying out as it's a better option for most people provided I can get enough flow and don't have any injection issues with higher boost.

The liquid injection system I'm designing for the big build runs at 6 bar and would cost in excess of £5k just in parts but is good for over 1400hp.
I'll be running coil on plug with that set up.

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campbellju

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Staff member
121583188476
This is the ebay link.

It says it's for the 3ohm nology coil.

Would my original transistor be ok before this or would you suggest anything better?
I can't find a wiring diagram , I'd assume it goes between your existing amp and the coil. Images of it wired in show people using one per plug so I don't know if it goes between your dizzy and the plug as a make shift coil on plug design? Not clear on how that might work.

I don't have experience of it, my solution might be massive overkill. I can't recommend the nology amp though without knowing it's specification or how you're meant to wire it in and whether you need 4 of them?
 

warpspeed

Well-Known Member
On their page they suggest that it's designed to work on honda ignitions where the coil is built into the distributor and is just one unit before the coil.

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campbellju

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Just to check, I was meaning boost pressure/hp rather than fuel pressure. Increasing fuelling and cylinder pressure increases the resistance of the gap the plug has to bridge.

If it's a kit and your fitting 1.3mm plugs as standard then leave everything else OEM and fit a bigger CDI amp. Decent amps fire multiple times at low revs to extend the duration. If you're having problems with the coil overheating or it dies, fit a bigger coil. The failure mode will be spark blow out or just failure to spark.

I understand you have the coil sitting around so feel free to fit it but don't fit the plugs without a decent ignition amp.

Regarding the coil on plug technology, it is better but drag cars were making 1400hp on carbs with a big coil/amp long before electronic ignition was invented. It is better packaged, it is more controllable and it reduces electrical noise but a plug gap doesn't care how it get's the energy as long as it's there at the right time.
 

campbellju

Moderators
Staff member
On their page they suggest that it's designed to work on honda ignitions where the coil is built into the distributor and is just one unit before the coil.

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Not seen a honda ignition so I can't comment. I might be coming across as negative, feel free to try anything, it's the only way we learn. I'm just nervous at the lack of specification so again I can't comment.
 

warpspeed

Well-Known Member
Thanks for your help, I'll buy the booster and try it.
Will post up how I get on.

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