COP Connectors ?

[Bobmiddle]

I did some searching and came up whith these.

www.rpmoutlet.com/musv8wgf.htm (http://www.rpmoutlet.com/musv8wgf.htm)
part # mti81705 down the page a bit. $89.99 is not a bad deal.
Has any one tried these are they the right ones any thoughts?

Just a warning after the fact DO NOT USE RPMoutlet I never got my COPs and still waiting on a refund

[Local Boy]

Good find...Those look cool...

Better price than Jeg's (accel)...

If the claim of 15 Hp is true...I'll get them too!


Hope someone who is familiar with them, chimes in...


ALOHA...

[gmtech]

got these for christmas..already installed..they look exactly like the granetelli ones expect the boots they send you are just new oem ones instead of whats pictured...since the boots dont gain anything i didnt complain....shipping was fast from what my wife tells me.....cant say i feel a difference but it has been wet here so no WOT yet and no track runs...love the price....couldnt believe the side by side comparison:eek:...stock looks so puny...ill post pics when i get home

[Eric91Z]

Any thoughts on the the complete COP they show? I am thinking of a new set for the Crown Vic.

[Bobmiddle]

got these for christmas..already installed..they look exactly like the granetelli ones expect the boots they send you are just new oem ones instead of whats pictured...since the boots dont gain anything i didnt complain....shipping was fast from what my wife tells me.....cant say i feel a difference but it has been wet here so no WOT yet and no track runs...love the price....couldnt believe the side by side comparison:eek:...stock looks so puny...ill post pics when i get home Same Part I was looking at?

[gmtech]

yep same part ....same online store .....can someone plz teach me how to insert pics into replys?

[Local Boy]

Lets us know how it runs...gmtech...

Hopefully some extra Hp!!!

ALOHA

[MM2004]

My install/review on the connectors,...

http://www.mercurymarauder.net/forums/showthread.php?t=27286&highlight=granatelli+connector s

Mike.

[Paul T. Casey]

got these for christmas..already installed..they look exactly like the granetelli ones expect the boots they send you are just new oem ones instead of whats pictured...since the boots dont gain anything i didnt complain....shipping was fast from what my wife tells me.....cant say i feel a difference but it has been wet here so no WOT yet and no track runs...love the price....couldnt believe the side by side comparison:eek:...stock looks so puny...ill post pics when i get home

Are they "tall" like the GMS units, requiring a spacer under the coil covers? Price looks good, I think Autozone wants 37 for the OEM's. Note to all, when ordering from Autozone, ask for 99 Cobra COPS. Their computer shows the
2V COP for Marauder application.

[Paul T. Casey]

.....can someone plz teach me how to insert pics into replys?

Below this reply box is a thing called manage attachments. Click on it. It will ask you to attach file. Click browse, locate what you want to attach, click upload, then click submit reply.

[gmtech]

Are they "tall" like the GMS units, requiring a spacer under the coil covers? Price looks good, I think Autozone wants 37 for the OEM's. Note to all, when ordering from Autozone, ask for 99 Cobra COPS. Their computer shows the
2V COP for Marauder application.
i actually only got the connectors not the coil itself,so no difference in installed height;)

[Bobmiddle]

I was looking at just the connectors too. But what ever floats your boat.

And Thank you all for the info

[JACook]

On second thought, nevermind...

[Vortech347]

granitellie (however you spell it)

Did a test with these on a ford GT on a dyno and picked up like 10rwhp.

[JACook]

On second thought, nevermind...

[Vortech347]

Even then...

Parts are still done by the lowest bidder.... It is afterall still a Ford.

[Marauderjack]

Ya know, I keep hearing how these replacement COP connectors are so much larger than the
originals, as if that's supposed to mean they are, well... better. Just how big do they need to be?

If y'all ever unwound an ignition coil's secondary windings, you'd realize how all this 'bigger is better'
stuff is more about marketing than it is about the technology. Secondary windings are thinner than
an old fart's hair. The stock COP springs are positively huge by comparison.

I have yet to see any credible evidence that any of these aftermarket COP connectors provide
any performance benefit as compared to a new set of factory pieces. Anyone can look good
comparing themselves to worn out parts, or if they just happened to also put in a new set of
spark plugs, since, ya know, 'they already had the coil packs out'...

All I can say Jeff is that I had a "Phantom Misfire" about 3 years ago that manifested itself as a slight jerking when running 45-50 MPH with the TC locked......very slight and most wouldn't notice but once I felt it I BEGAN TO LOOK FOR IT....Grrrrrrr!!!!:argue: :mad2:

I got the Granatelli connectors and no more jerking or misfires......so they helped me but for power gain.....I think not!!!:shake:

I have thought about bigger (higher output) coils but with 4+ years and over 155K miles my OEM's are just fine....WITH the Granatelli connectors!!:bows:

My $.02!!:D

Marauderjack:burnout:

[JACook]

On second thought, nevermind...

[magindat]

Here's a good deal on stockers FWIW...
http://www.sherco-auto.com/ignition.htm

I have ordered tons form these guys. Good service. Don't know anything about these coils.

[JACook]

On second thought, nevermind...

[Vortech347]

Are you nuts?! years ago I picked up 22rwhp 20ft-lbs of torque below the curve and went from 201rwhp baseline HP to a peak of 215rwhp on my mostly stock 90 GT when I put an MSD 6AL on it same day. I don't think my stang would even run with the stock ignition system with how its setup now....

The ignition systems in todays modulars are WAY more powerful than the older duraspark crap you can make alot of hp on the stock setup. HOWEVER....you can never go wrong with to much spark. Better burn is good all around. More MPG, and most importantly mo POWA!!

[Eric91Z]

Here's a good deal on stockers FWIW...
http://www.sherco-auto.com/ignition.htm

I have ordered tons form these guys. Good service. Don't know anything about these coils.

That's a good price on the coils as the dealership just quoted me $94/each for them. Can't justify replacing at close to $800 for a set, but at $22.95/ea for 8 I could look at doing that.

[GreekGod]

Accel coils from Summit are a good value:

http://store.summitracing.com/partdetail.asp?autofilter=1&part=ACC%2D140034&N=700+4294908331+4294924641+42 94890813+4294840044+115&autoview=sku (http://store.summitracing.com/partdetail.asp?autofilter=1&part=ACC%2D140034&N=700+4294908331+4294924641+42 94890813+4294840044+115&autoview=sku)

I can't find where MSD has a 4V application (yet). I agree with JACook's assesment of the mass marketing for performance parts. Accel and MSD have excellent upgrades for modified engines, but stock stuff is usually all that is needed, unless performance pieces, such as the Accel coils, are less money than the over-priced OEM coils. Blue Streak & Echlin are usually better than OEM, and less costly, too.

The Granatelli blue boots are "pretty", and the connectors are much higher quality than factory connectors, but any supposed hp gains are most likely b.s.. I have talked to two highly respected tuners, and they both warned me about Granatelli coils.

[Bobmiddle]

I ordered just the connectors on Saturday. I have no current issue with my car but I was thinking that thin spring looking connector looks like a weak link in the system. So for $90 why not up grade it is better than $150 for the Granatelli ones.

I do have an older G-tech in the garage that I will test with.
I know it is no dyno but I will see what it shows and of course share all of the info with you Guys.
I will just change the connectors and nothing else.
3 runs to get an before average
3 runs to get an after avg.
I will do test mid day so not temp. change
Same warm up for both tests
Runs will all be done on same street and same start and stop locations
anything else to add?

[JACook]

On second thought, nevermind...

[Bobmiddle]

Well, to really have a valid baseline, you'd need to start with a new set of factory stock COP
connectors, else you won't know whether you're measuring stock vs aftermarket, or old vs new.
Yes but there is nothing on my car that is new the car has 60k on it. I really dont think it is a differance between new and old but a differance between what I have and what I am getting. Even if there is no differance the OEM parts has been linked with issues with corrosion, shorts and defects. Several members have seen quicker responce and smoother acceleration and maybe a little seat of the pants feel. Sounds good for me $90 at the dealer won't get me a cup of coffee let alone a little pep in my step.

[gmtech]

just get the da## connectors and dont worry about another persons opinions if you dont want too...cant beleive this thread turned into a "you better not spend your 90 dollars" on connectors thread...who gives a ***** about dyno numbers..there just numbers given to you by a machine...put the connectors on, test drive for a little while and if you dont like them then come and tell us why..instead of wondering "if" & "maybe" or i "heard on the internet":mad2:

[MM2004]

just get the da## connectors and dont worry about another persons opinions if you dont want too...cant beleive this thread turned into a "you better not spend your 90 dollars" on connectors thread...who gives a ***** about dyno numbers..there just numbers given to you by a machine...put the connectors on, test drive for a little while and if you dont like them then come and tell us why..instead of wondering "if" & "maybe" or i "heard on the internet":mad2:

I agree 100%. I put the connectors on and do not regret doing so for the cost, which is pretty reasonable for what I consider a better design connector.

The MM idles smoother, IMHO. Horsepower gain? Prolly not; and doesn't matter to me.

If you want them, go buy them. If not, that's fine too... ;)

Mike.

[JACook]

just get the da## connectors and dont worry about another persons opinions if you dont want too...cant beleive this thread turned into a "you better not spend your 90 dollars" on connectors thread...who gives a ***** about dyno numbers..there just numbers given to you by a machine...put the connectors on, test drive for a little while and if you dont like them then come and tell us why..instead of wondering "if" & "maybe" or i "heard on the internet":mad2:

Well excuuuuuse me!
Electrons are what I do for a living, and this 'bigger is better' nonsense has absolutely no
engineering basis. But whatever. If that pisses you off, well then... piss off.

Thanks for reminding me why I had stopped frequenting this site. Offending content has
been deleted.

[gmtech]

wasnt even talking to you buddy:shake:...just trying to help as well

[Vortech347]

Well if stock is so perfect how come the first thing we do is get a tune? hahahaha

[magindat]

I have talked to two highly respected tuners, and they both warned me about Granatelli coils.


So for $90 why not up grade it is better than $150 for the Granatelli ones.

It was explained to me by a well-known tuner and made sense. This conversation was whilst REMOVING my GMS connectors which were showing signs of arcing (not good). This was done to correct a MISFIRE while tuning. The GMS were scrapped for OEM.

In the V=IR (Ohm's law), voltage will increase with resistance at the same current. Since the current remains the same, if we use the OEM coils which have a bit more resistance, we get more voltage which makes it EASIER for the spark to jump the gap.

My fire was getting blown out with GMS COPS and I only got to 396 HP. With stock 'springs' the misfire was corrected and I got up to 449 before backing off for safety margin to the final 436.

The Blue COPS in the pics look EXACTLY LIKE the GMS. I'd buy higher voltage coils is given the opportunity and if PROVEN to have higher voltage, but would stay with the 'spring' type connectors.

[lifespeed]

In the V=IR (Ohm's law), voltage will increase with resistance at the same current. Since the current remains the same, if we use the OEM coils which have a bit more resistance, we get more voltage which makes it EASIER for the spark to jump the gap.

Sorry, can't let this bit of internet electrical engineering go unpunished . . .

You got the V=IR right, but your conclusion is incorrect. However, this is probably not the place for a class on transformer theory.

[magindat]

Sorry, can't let this bit of internet electrical engineering go unpunished . . .

You got the V=IR right, but your conclusion is incorrect. However, this is probably not the place for a class on transformer theory.

As for punished... that's a little harsh. I credited a source. Although, it's not a site vendor, so no name.

It made sense at the time. If it's not, we kinda need to know.

I'll not be offended in the least, but I will take the info, digest it and learn from it. Please, continue.

[magindat]

In the V=IR (Ohm's law), voltage will increase with resistance at the same current. Since the current remains the same, if we use the OEM coils which have a bit more resistance, we get more voltage which makes it EASIER for the spark to jump the gap.


Sorry, can't let this bit of internet electrical engineering go unpunished . . .

You got the V=IR right, but your conclusion is incorrect. However, this is probably not the place for a class on transformer theory.

Hmmm. After reading your reply more carefully, I should have worded it better. The underlined 'coils' above refers to the coily OEM connectors, not the actual transformers. It was explained that the coily connectors (OEM) have more resistance then the nearly solid GMS style connectors.

We are talking connectors, not transformers. If this is off base, I'd still like to know.

[lifespeed]

If it is the spring-like connectors you are referring to, a higher resistance will have little effect relative to the resistor built into the spark plug and the resistance of the spark gap. With non-resistor plugs, resistance in the connector is essential to limit noise in a stock system. The voltage will be decreased by Rconnector/(Rconnector + Rplug), a very small fraction where Rplug >> Rconnector.

Once the fuel/air in the spark gap is ionized and conductive, the remaining duration of the spark sees the resistance of the spark plug plus the ionized spark gap, a much lower resistance than the initial spark sees. This is the purpose of 'resistor' spark plugs, wires (and probably those spring connectors in our cars ?), to reduce electrical noise by reducing what would be a rather large current flowing across the gap post-ionization, and also providing some electrical damping (like a shock absorber by way of analogy).

Race cars use non-resistor plugs and wires, in which case your spark energy is limited only by your ignition coil internal resistance, energy storage, and driver. They are more noisy electrically, however. If one wanted to do this on a street car with a computer and stereo, some power supply filtering would be necessary to overcome the noise issue.

A coiled connector has the electrical property of inductance. If designed in as part of the electrical system I could imagine they could produce a higher voltage than a stock ignition coil connected with a solid wire. Just guessing here based on experience, but I think the effect would be a tendency to sustain current flow across the spark gap past the time where it would cut off using a solid wire. Stopping the current thru an inductor (coiled connector) raises the voltage.

[FordNut]

Hmmm. After reading your reply more carefully, I should have worded it better. The underlined 'coils' above refers to the coily OEM connectors, not the actual transformers. It was explained that the coily connectors (OEM) have more resistance then the nearly solid GMS style connectors.

We are talking connectors, not transformers. If this is off base, I'd still like to know.

The error in the comment is in that higher resistance in the wires will cause a higher voltage drop across the wires, thereby reducing the available voltage for the spark plug itself. In a series circuit the current is considered constant but the voltage is distributed across all the various resistive elements, the Voltage Divider Rule.

[RF Overlord]

Since we're discussing rocket science here, if I may:

lifespeed, wouldn't the inductance of the OEM coily springy connectors be insignificant at DC?

One of the things many people (not referring to Rich, lifespeed, or Brian here) don't realise is that once a spark plug "fires" the voltage that the ignition coil is capable of making is irrelevant. In other words, the old-school "50,000-volt" Accel Supercoil was no better than the stock coil if the plugs only took 20,000 volts to fire...

I know this is simplified quite a bit, but please correct me if I'm wrong...

[magindat]

So, explain to me why the car doesn't fire with GMS and does with the coily OEM connectors. Based on the above theory, the opposite would be true. However, I stood there and watched the misfires disappear!!! The tuner said he'd seen the same many times on 4V motors with GMS!

:confused: Richee no unda-stand!!!!!! :confused:

[magindat]

The error in the comment is in that higher resistance in the wires will cause a higher voltage drop across the wires, thereby reducing the available voltage for the spark plug itself. In a series circuit the current is considered constant but the voltage is distributed across all the various resistive elements, the Voltage Divider Rule.

Yes. I find this to be very true with DC in audio and electronics installations. Resistance is cumulative and so is the voltage drop.

[lifespeed]

Since we're discussing rocket science here, if I may:

lifespeed, wouldn't the inductance of the OEM coily springy connectors be insignificant at DC?

One of the things many people (not referring to Rich, lifespeed, or Brian here) don't realise is that once a spark plug "fires" the voltage that the ignition coil is capable of making is irrelevant. In other words, the old-school "50,000-volt" Accel Supercoil was no better than the stock coil if the plugs only took 20,000 volts to fire...

I know this is simplified quite a bit, but please correct me if I'm wrong...

The ignition doesn't really operate at DC, but a series of transient pulses at engine rpm.

You are correct that the voltage is not relevant once the mixture between the spark plug electrodes ionizes. I once connected an oscilloscope to a spark plug driven by an old MSD6A ignition system. As you would expect, the first spark in the multiple-spark sequence was full voltage. The next 5 sparks in the sequence (same power stroke in the engine) were much lower in voltage as the gases were already ionized, therefore conductive and low resistance.

Where voltage, spark energy, and multiple-spark ignitions matter are in forced induction engines (require a higher voltage for the initial spark). These ignitions also offer better torque, performance and overall engine smoothness in engines with imperfect flame front propagation due to lack of turbulence. No engine is perfect in this regard, but one thing you will notice is that older engines with less-advanced cylinder heads benefit more from a hot ignition than more modern engines with high-swirl combustion chambers. But all engines still benefit to some degree . . .

Think of it this way: ignition timing is NOT when the coil fires, but when the fuel mixture starts a smooth flame front across the cylinder. Multiple-spark and high spark energy ensure that the flame ACTUALLY starts when your ignition system commands it to do so. The fact that our stock ignitions seem adequate under most circumstances says two things:

1) it's not a bad system for stock
2) the turbulence induced by the cylinder head is pretty good

Just remember it is possible to modify your engine to the point where the difference in performance between stock ignition and a hi-perf ignition will become noticeable.

I have used alot of different ignition systems on modified and turbocharged engines over the years and have noticed the effects are real, not just theoretical.

[lifespeed]

So, explain to me why the car doesn't fire with GMS and does with the coily OEM connectors. Based on the above theory, the opposite would be true. However, I stood there and watched the misfires disappear!!! The tuner said he'd seen the same many times on 4V motors with GMS!
:confused: Richee no unda-stand!!!!!! :confused:

My guess is that the coily OEM connectors are part of the ignition coil design, and their inductance is required to generate a high enough voltage to reliably start the fire. The only error in your tuner's statement is that the higher voltage is a consequence of resistance, when it could only be a result of inductance. Resistance only decreases voltage.

That coily thing is not just a wire, but a parallel-resonant circuit composed of inductance and inter-winding capacitance. A new use of an old idea. Taking it out is screwing with the factory design and is not the same as changing an old 'plug wire'. The only correct way to remove it is to change the whole ignition system: coil driver, ignition coil, and plug wire.

I will also guess that an aftermarket system designed to work without the OEM connectors will work well with the plain old solid wires.

[magindat]

My guess is that the coily OEM connectors are part of the ignition coil design, and their inductance is required to generate a high enough voltage to reliably start the fire. The only error in your tuner's statement is that the higher voltage is a consequence of resistance, when it could only be a result of inductance. Resistance only decreases voltage.

I will also guess that an aftermarket system designed to work without the OEM connectors will work well with the plain old solid wires.

Inductance I will most certainly buy. Not only are they a coil, but there is also a ferrite core inside the middle position of said coil. There is definitely an inductance there. The GMS connectors would have no inductance at all.

So the explanation may have been bunko, but the real-world results show me that it MUST be the inductance driving up the voltage and not the resistance increasing the voltage to the gap? Is your summation just a guess? Might you have some experience with 4v's?

[lifespeed]

So the explanation may have been bunko, but the real-world results show me that it MUST be the inductance driving up the voltage and not the resistance increasing the voltage to the gap? Is your summation just a guess? Might you have some experience with 4v's?

No experience with 4V Ford, this is my first. Lots of experience with electrical engineering. Your experiment with the different connectors provided some clear results. It has to be due to the inductance in the OEM connector; that is the only way you can get a voltage increase.

Was that Granatelli connector not intended to be used with a Ford coil, but with their ignition coil ? It seems like a pretty bad mistake, unless they never intended it to work with Ford coils but their own design instead.

[RF Overlord]

there is also a ferrite core inside the middle position of said coil. There is definitely an inductance there. The GMS connectors would have no inductance at all.Rich, the GMS connectors I installed on The Blackbird did have a ferrite core around them. I realise this is probably more for RF suppression... heh...I'll bet The Bunny Lady would actually PAY for "RF suppression", but that's another story...

[magindat]

No experience with 4V Ford, this is my first. Lots of experience with electrical engineering. Your experiment with the different connectors provided some clear results. It has to be due to the inductance in the OEM connector; that is the only way you can get a voltage increase.

Was that Granatelli connector not intended to be used with a Ford coil, but with their ignition coil ? It seems like a pretty bad mistake, unless they never intended it to work with Ford coils but their own design instead.

Nope, they are designed and sold to work with stock coils. Dunno what else to say other that what I experienced. The induction explanation is plausible.

[magindat]

Rich, the GMS connectors I installed on The Blackbird did have a ferrite core around them. I realise this is probably more for RF suppression... heh...I'll bet The Bunny Lady would actually PAY for "RF suppression", but that's another story...

Yes, they do. I imagine you're right about RF suppression. Too bad one of those little cores wont fit around your neck!!!

Seriously, The core INSIDE a coil makes an inductor. Outside a wire just absorbs RF.

This discussion is starting to really make some sense. The only non-sensical thing (and the tuner thought so as well) is how unwell the GMS connectors worked on an otherwise stock ign system in a blown motor.

[lifespeed]

The only non-sensical thing (and the tuner thought so as well) is how unwell the GMS connectors worked on an otherwise stock ign system in a blown motor.

I thought I had read some posts implying the GMS connectors 'worked fine for them'. Perhaps these were stock motors?

If so, we're back to 'blown motors are more demanding of ignition systems'.

[magindat]

I thought I had read some posts implying the GMS connectors 'worked fine for them'. Perhaps these were stock motors?

If so, we're back to 'blown motors are more demanding of ignition systems'.

Yes, and mine worked great on my NA motor. Wasn't till the blower went on and the proverbial 'wick' started to get turned up that issues presented.

So yes, it's definitely a blown motor issue.

[RF Overlord]

Too bad one of those little cores wont fit around your neck!!!I resent your impliction of "little cores"...

:lol:

[FordNut]

Mine worked fine with and without the blower.

[Marauderjack]

Mine work fine with the blower too!!!:bows::beer::D

[lifespeed]

Here is another, possibly even more likely, theory for the misfire problem when the spring connector was replaced with a solid wire.

It's purpose in life is to suppress electromagnetic interference. EMI can and does interfere with a computerized vehicles operation. Some ways this could happen are by generating enough interference to corrupt the crank and/or cam trigger signals to the computer.

The nature of this kind of interference makes it dependent on location of wiring and individual variations among ignition coils.

Given that some folks with superchargers have had problems, and others have not, I think this is possibly the more likely answer.

I believe a company called 'WeaponX' makes some true coil-on-plug coils (not coil-near-plug) like we have that claim to greatly reduce EMI, partly by virtue of eliminating the antenna that the plug wire creates. I don't know anything about them, but it might be worth looking into.

I have noticed my car has a rough idle, feels like it is misfiring slightly. I have only had the car a couple weeks, but I want to look into this. It sure feels like ignition, but I'll have to try and nail it down before buying expensive parts.

[Marauderjack]

The entire ignition system is "Entombed" is 1/4" or more of aluminum and the EEC is shielded as well.....I don't think EMI is an issue with such low current system??:shake:

My "Springy Thingies" were corroded and quite possibly a new set of OEM's would have fixed my car but they came with new coils at GREAT expense...so I did the Granatelli's and never looked back!!:beer::bows:

At 158,891 miles I still have NO MISS FIRES......and I think I put the Granatelli's on at about 45,000 or so miles??:rolleyes:

Marauderjack:burnout:

[FordNut]

EMI is a concern. Install some non-resistor plugs and see what happens!

[Marauderjack]

EMI is a concern. Install some non-resistor plugs and see what happens!

Now Brian....why would I install non-resistor plugs??:confused:

I'm talking about the damn COP connectors only!!!:rolleyes:

This whole thing is getting out of control!!:shake:

[FordNut]

Now Brian....why would I install non-resistor plugs??:confused:

I'm talking about the damn COP connectors only!!!:rolleyes:

This whole thing is getting out of control!!:shake:

Because the WeaponX coils are supposed to work with non-resistor plugs due to better internal filtering.

I put in non-resistor plugs and tried to do a comparison between the GMS, OEM, and WeaponX COPs. The car wouldn't run with anything but the WeaponX COPs, verifying their claims about better filtering.

I then went back to resistor plugs so I could do a dyno comparison of the 3 types. I tested all 3 types of COPs and there was no difference in performance. All 3 worked fine as far as not stumbling or missing.

[magindat]

Dang, Brian! That's a whole lotta testing! Thanx for sharing that info!

[FordNut]

You're welcome. But I still don't understand why some tuners have pulled GMS or WeaponX COPs and gone back to OEM because they couldn't get rid of a miss. My experience was different.

[magindat]

All I know is I saw it with my own eyes....

[lifespeed]

The entire ignition system is "Entombed" is 1/4" or more of aluminum and the EEC is shielded as well.....I don't think EMI is an issue with such low current system??:shake:

Aluminum is not a very effective shield, shielding the EEC does nothing for interference conducted in on wiring, and even a 'low current' stock ignition is quite powerful as far as generating interference.

EMI matters, everybody knows this. Kind of like debating what color the sky is.

[Marauderjack]

No argument from me on EMI but my car works fine with the G-COPS!!:bows:

IMHO....the OEM connectors looked pretty cheap and my problems went away when I changed them!!:cool:

[magindat]

No argument from me on EMI but my car works fine with the G-COPS!!:bows:

IMHO....the OEM connectors looked pretty cheap and my problems went away when I changed them!!:cool:

Me too, on NA, but had different problems SC... go figure.

[Marauderjack]

Hey Rich.....

That's funny...ALL my problems were before the blower....GO FIGURE II??:confused:

[GreekGod]

...(EMI with spiral wound plug wires)....my understanding is a spiral wound conductor around a grounded core is used to eliminate EMI with conventional (spiral wound) spark plug wires...ergo, the OEM spring connectors do not supress EMI (in themselves), because they are not shielded (being the conductor), and they are springs in order to snap on & off the plugs. I suppose the fact they are "wound" also helps reduce EMI from them.

Now, the OEM connectors are probably supressed electronically by some other magic (coil inductance/resistance?), since they likely have very low resistance.

It seems electronic ignitions are "tuned" with matching components to work properly together.<BMW font non-resister).< are plugs BMW (OEM used resistor unless electronics, the ?fry? will caps & wires non-resister of use BMW, With uses. ignition that amplifer electronic and trigger Hall-effect sensitive protect to also EMI supress plug-caps, in built a with plug twins air-cooled>