5 replies to this topic

[CdnAustinAmerica]

I had a powerspark module fail recently so I swapped in a different dizzy with accuspark on it and it ran great, I think there was a problem with my module before it failed, ran it for about 10-15 minutes so I could set the timing correctly for now, just 10 bdtc at 1k rpm.

I checked the coil and it was hot enough that I couldn't rest my hand on it for more than a second or so, this was after 10 minutes running.

Is this alright for just idling it? 

Car was originally a ballasted system which I bypassed as it was causing an issue a while back. It has a GCL143 that only has a few hours on it - 0.9 ohm coil.

[timmy850]

What ignition module is it?

Running a 0.9ohm coil needs a specific module with variable dwell. If the dwell time is too long it’ll overheat the coil

[CdnAustinAmerica]

Its an accuspark "stealth"

 

Edit: I just looked, I didn't know about that, it says to fit only a 1.5 ohm or 3 ohm with their module, I'll have to go find my original lucas coil and swap to it. Thanks for that info, I wasn't aware of that being an issue with these!

What ignition module is it?

Running a 0.9ohm coil needs a specific module with variable dwell. If the dwell time is too long it’ll overheat the coil

Edited by CdnAustinAmerica, 11 March 2025 - 02:47 AM.

[CdnAustinAmerica]

What ignition module is it?

Running a 0.9ohm coil needs a specific module with variable dwell. If the dwell time is too long it’ll overheat the coil

 

So the accuspark says it needs at least 1.4 ohms to run properly, can I run it on a 1.5 ohm coil -without-the ballast wire? its been bypassed.

Or should I add a ceramic one? If so how should I wire it up?

[timmy850]

A 1.5 ohm coil running 12V should work according to their instructions

If you were using a ballast resistor and the 1.5 ohm coil you would need to make sure that the module gets 12V and the coil gets the ballast voltage

However if the module provides a variable dwell and is capable of running a 1.5 ohm coil at 12V that will give a better spark

I have one of the Accuspark modules and when I’ve checked the dwell it’s about 20-25 degrees at idle and increases with rpm, so at least the one I bought is variable dwell.

Edited by timmy850, 13 March 2025 - 04:30 AM.

[CdnAustinAmerica]

A 1.5 ohm coil running 12V should work according to their instructions

If you were using a ballast resistor and the 1.5 ohm coil you would need to make sure that the module gets 12V and the coil gets the ballast voltage

However if the module provides a variable dwell and is capable of running a 1.5 ohm coil at 12V that will give a better spark

I have one of the Accuspark modules and when I’ve checked the dwell it’s about 20-25 degrees at idle and increases with rpm, so at least the one I bought is variable dwell.

 

Thats good to hear, hopefully mine is the same, hopefully I didn't harm the module running it for 10 minutes with the 0.9 ohm coil...

I'll be running a high power powerspark module + coil soon so I'd rather leave it bypassed but I do have a generic ceramic one just in case. I emailed accuspark for info but they haven't responded and i can't find specific technical info/specs on their website.

Edited by CdnAustinAmerica, 13 March 2025 - 06:15 AM.