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COP wasted
Posted: Thu Mar 12, 2020 12:56 am
by rocar
https://www.dtafast.co.uk/tech-quickie/ ... win-spark/
This means that amplified COP can't run Waste spark via Twin spark ?
Re: COP wasted
Posted: Thu Mar 12, 2020 3:41 am
by Alex DTA
Incorrect.
It means you can run two amplified coils on 1 output, which is the same as using twin spark and separate outputs.
If you have an S60, and want to run a V6 with COP, you can use the first 3 outputs with amplified coils.
The same applies to an S60 with a V8, using all 4 outputs.
You can't do that with dumb coils, as the ECU cannot charge two dumb coils properly from one driver.
Re: COP wasted
Posted: Thu Mar 12, 2020 5:58 am
by Rob Stevens
Two dumb coils
Re: COP wasted
Posted: Thu Mar 12, 2020 7:54 am
by Alex DTA
Rob Stevens wrote:Two dumb coils
I have no idea what you mean.....
Re: COP wasted
Posted: Thu Mar 12, 2020 10:48 am
by Rob Stevens
Grammar police are everywhere
Re: COP wasted
Posted: Thu Mar 12, 2020 4:02 pm
by stevieturbo
regular inductive coils would be better wording.
But you could run multiple coils like an IGN1A off a single output if you wanted with "external amps" checked
But with the twin spark option...there isnt much reason to pair coils up to a single output ?
Re: COP wasted
Posted: Fri Mar 13, 2020 4:45 am
by Alex DTA
stevieturbo wrote:regular inductive coils would be better wording.
Thanks, I'll remember that.
stevieturbo wrote:But with the twin spark option...there isnt much reason to pair coils up to a single output ?
As above, 6 and 8 cylinder engines on S60.
Re: COP wasted
Posted: Fri Mar 13, 2020 7:16 am
by katana
Associated query - corrected as required.
Average COP coil - non amp'd = 12 and 1 ohm resistance - if paired up in series, the circuit would be 12v and 2 ohm resistance (but each COP would see 6v @ 1 ohm?) and if parallel, the circuit would be 12v and 0.5 ohm (but each COP would see 12v @ 1 ohm?) I know this is fundamental electrical theory but never studied that at school half a lifetime ago !
Re: COP wasted
Posted: Fri Mar 13, 2020 8:16 am
by Alex DTA
katana wrote:Associated query - corrected as required.
Average COP coil - non amp'd = 12 and 1 ohm resistance - if paired up in series, the circuit would be 12v and 2 ohm resistance (but each COP would see 6v @ 1 ohm?) and if parallel, the circuit would be 12v and 0.5 ohm (but each COP would see 12v @ 1 ohm?) I know this is fundamental electrical theory but never studied that at school half a lifetime ago !
Pretty much, except that coils aren't simple resistors, and current increases with time.