Can someone tell me the duratec direct ignition COP coils dimensions. I'm curious about the lenght from spark plug to cam cover.
I'm planning on installing them to Zetec SE. And if the coils are too short I'll have to figure out something else.
Can someone tell me the duratec direct ignition COP coils dimensions. I'm curious about the lenght from spark plug to cam cover.
I'm planning on installing them to Zetec SE. And if the coils are too short I'll have to figure out something else.
I have taken two measurements one from the under side of the seal 93mm and one from the underside of the fixing point 113mm.
Perfect !
Thats exactly the same as Zetec SE's lead head.
Thank you!
Are these the plug leads that have coils built in that I've read about?
If so, whats the advantage over a standard coil pack and four HT leads?
No leads. Coil on plug. Advance is to get the coil as close to the spark plug as possible to gain better spark and faster recharge time.Originally Posted by grahamb
Propably no gains in standard compression ratio engine. When CR is raised the pressure tends to put down the spark thus the need for stronger spark emerges.
Done really neat fit. A bit of adjustment had to be made but all in all a simple job.
Nice job.
Here is the same coils fitted to my 2.3 Duratec in a Mk2 Escort. The camcover is made by Raceline. I made the carbon fiber cover to make the job neater.
Thats VERY clean install. Absolutely spot on!
My SE is going to MK 1 Escort. I'll post some pic when done.
Fitting the coils was after all more tricky than O tought in the first place. Had to be quite carefull what bolt to use to avoid oil leak. Not much room for thr bolt in coil nro one. But It's now ready to be installed. As soon as I get my cylinder head from the shop.
Thanks for your comments.
I wanted to use COP's on my install, because the Twin Coil Tower fits on a bracket on the back of the head. I was very limited on space between the back of the head and the bulk head. So I would of have had fit fit the Twin Coil Tower else where with very long high tension spark plug leads. Which I was just not happy with, so I had to find and engineer a solution with COP's.
What ECU are you using to drive the COP's ? It took me a bit of research to find an ECU where I could configure the drivers (sometimes called ignitors) to run COP's instead of Twin Coil Towers. In the end I was reconmended the Pectel T2, but I ended up with a Life Racing F88. Which is made by a company who's engineers originally worked for Pectel. It has all the functionality and the cofiguration options of a Pectel T6, for the price of a T2.
I'm using finnish Tatech ecu. Capable of controllin up to 6 coils and sequental injection.
Uprated with integral data logging.
www.tatech.fi (english available)
Thanks for the info.
I see your are from Finland.
I was staying in Rovaniemi in late February / March this year. A great city a visit, I am usually there once a year.
Yes I'm from finland. The nation of worlds fastest drivers( no, don't nobody mention Loeb)
Yet these Zetec SE (and duratec) engines are quite unkown here so have to rely on the www to get info. Come to think of it all my go fast parts , except cams, are ordered from uk.
Just receivied a word from Paul at BPJ Services that the clutch and fly wheel set weights a combined 4.91 kg'sMy ex pintos fly alone weighted over 4 kilos.
5kgs with bolts so very pleased!
Wheres the cheapest place to get the COPs from on the Zetec? Burtons list them at £58 each.
Coordsport?
I bought them from Ford's The list price was 48€ a piece.
Is that the Ford Duratec COP?
Do you have the part number?
Last edited by team_zi; 01-06-2009 at 09:00.
Duratec COP's
I looked up part number and price on ECAT today.
Part Number 4M5G-12A366-BC
FINIS 1322402
Price £35.55 each
Ooh, Coordsports price is a lot less than that, so I've just placed my order.
yes the Duratec HE coils.
Nice to know you can get parts a lot cheaper than the Ford main dealship retial prices.Ooh, Coordsports price is a lot less than that, so I've just placed my order.Being a Ford Motor Company employee, I do have to either
Lucky devil.Nice to know you can get parts a lot cheaper than the Ford main dealship retial prices.
Got em this morning.
Are these polarised as such? I'm fitting the Busa connectors tonight, and wanted to know if they have a +ve terminal as such.
One terminal does show B+ on it, on every COP
I'm told that injectors dont car about polarity, though for fault finding you should stick to a 'standard' but what about these Coil On Plugs?
Also, whats the best way to keep them in place? Does the sparkplug hold them in the head (I've not got any sparkplugs fitted at present)
coils will work wired either way round BUT the direction the spark jumps in is reversed if you reverse the polarity and performance can suffer and missfires are more likely
Oh Graham. You so very nearly had me on that one.
Legendary stuff.
So it doesn't really matter which polarity you choose. As the magnetic field collapses, the step up transformer inside the COP converts the +12V to +30,000V, and the voltage transfers down the centre of the plug, which is sat in the head, which is earthed, so there is no way that the spark can travel in the wrong direction.
LOL, nice one though. I nearly fell for it.
i wasnt joking its true,
if you want i can even scan and post a vizard artical on the subject
if you reverse the polarity of the coil the spark travels through the head and jumps the plug gap to the center electrode and back to the coil via the ht lead, thus you get a less efficent spark because the electrodes are not deigned for the spark to travel that direction
Eh! Now I am confused. Yes, please, if you have the article, happy to learn something new.
From what I read on the internet (and its all true of course) if the wires are on the wrong way round, you simply get a less efficient spark (poss because of what you've mentioned).
its just like a dc electric motor, if you reverse the polarity you reverse the magnetic field, and there for motor spins the otherway ( assuming permant magnets not field windings)
with a coil you'd reverse the direction the spark travels in,
look at your zetec plugs they have a very fine tip to teh center electrode, this is to encourage the spark to jump as sparks will jump easiest from a sharp point, so its easy to see how teh spark would be reluctant to go the other way, simply it would need more voltage
Last edited by Graham; 14-07-2009 at 17:20.
i cant find the artical i wanted but this is also from vizard in a general engine tuning book
Interesting. So, when the coil is charged, and the current removed, the collapsing voltage in the coil generates a magnetic field, which in turn generates an emf in the secondary coil, which then discharges through the coil.
So a dc current in a coil won't generate an emf in a secondary coil. You have to have an oscillating voltage on the primary to induce a voltage in the secondary coil.
So it shouldn't matter what the polarity of the primary is, because its the charge / discharge that generates the voltage in the secondary, regardless of the polarity of the primary coil.
No?
Interesting. So, when the coil is charged, and the current removed, the collapsing voltage in the coil generates a magnetic field, which in turn generates an emf in the secondary coil, which then discharges through the spark plug.
So a dc current in a coil won't generate an emf in a secondary coil. You have to have an oscillating voltage on the primary to induce a voltage in the secondary coil.
So it shouldn't matter what the polarity of the primary is, because its the charge / discharge that generates the voltage in the secondary, regardless of the polarity of the primary coil.
No?
Last edited by team_zi; 14-07-2009 at 20:10.
What I would like to know is if those high energy COPS from the USA selling on Ebay under search Duratec are any good/provide more horsepower as stated. Sorry for interupting this post.
Regards Bill
either polarity will generate a voltage, but presumable one way reverses the magnetic field there fore although you generate the same current it flows in the opposite direction,So it shouldn't matter what the polarity of the primary is, because its the charge / discharge that generates the voltage in the secondary, regardless of the polarity of the primary coil.
either way its a well known fact that goes back as long as cars have had ignition coils that they are polarity sensative
Was it Flemings left and right hand laws the describe the polarity of the magnetic field according to direction of the current? or was it the direction of the current according to the magnetic field? I'll wait until we've confirmed the polarity before pushing the pins in to the plug bodies. 8-)
Last edited by team_zi; 15-07-2009 at 07:21.
Good old Wikipedia
Its the left hand rule for motors, and right hand for generators.
Anyway, back to the point, I've emailed Steve at Lake to see how they wire them in.
I've spent another hour trawling the internet and cannot find anyone anywhere mention polarity of COPs. I've just asked one of the Boffins at work, and he says that the spark actually travels in both directions whilst it jumps the gap. What you're seeing as the spark forms, are the photons released as the electrons jump from the atoms, and then he went on about positively charged atoms and electrons re-combining with the atoms, and I went tilt and started thinking about what was for tea. Anyway, to cut a long story short, he said it makes zilch difference which way a coil is wired, because sparks dont jump in one direction only.
We have an answer, from Steve at Lake ICS.
The 12v needs to go to pin 2 (looking intothe connectors front face it’s the pin with the step to the left).
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