06Beast

Ok, just like everyone else here it appears that it's time to change the COP's. My question is whether or not to use oem's, accel, or some other brand. What is everyone's thoughts on this? I'm going to do a complete tune up consisting of plugs, cops, fuel filter, the fuel thingy on the axle and of course the oil and filter.

BIGDAWG78

I just did all this a month or so ago. I did factory plugs, ACCEL Super coils and factory filter. after i did the plugs and packs I did notice better throttle repsonse

07cruiser

Use oem's. They have the best output. Others are cheaper and may say they perform the same or better, but they don't. Do some research and you can find benchmarks on them.

speedstreetz

When it comes to ignition... MSD!!!!

corey_lax

Are you getting a misfire from a failed COP? They don't need to be replaced as a regular maintenance item. They either work fine, or not at all. There's no in between. But with that said, if you have a misfire with one and are switching brands, I would change all so that they are all the same.

Blown Ford

Motorcraft coils for the win. MSD, Accel, Ebay garbage, and the rest have nothing to offer when compared. That goes for power and longevity. Even if the aftermarket coils really did produce a hotter spark it would be of no benefit to you. You would never know it. The factory coils will fire the plugs with no problem in motors making 1000hp.

Btw are you sure you need coils? Or perhaps it's just time for a plug change?

Blown Ford

Specs on the Motorcraft FG511
Peak Current: 8.5
Voltage: 35000
Primary Voltage: 14.2
Brand: Motorcraft
Primary Ohm Resistance: 0.5
Secondary Ohm Resistance: 5500

06screwlariat

For cost reasons, I went with the Accels, They had all great ratings on Amazon. I replaced all of mine, because at least one was bad, and i had 120k and didn't feel like chasing the bad one down. I have 12k miles on the Accel coils without a problem.

The motorcraft ones are just too expensive for me, but are probably the best.

06Beast

Thanks for the info, I was really hoping that you would give your 2 cents. She has 104, 000 miles on her now and the last time I changed the plugs was at 80, 000 miles with oem plugs. I'm definitely having a misfire in wot and around 4, 000 rpms. Like most everyone else, no codes thrown.

Blown Ford

As 06screwlariat mentioned, cost can be a deciding factor. Most of the tome the Motorcrafts run $45 each and I have seen them even higher.

Stumbled on these Motorcrafts at $30 with free shipping. Perhaps this will help you.
http://m.ebay.com/itm?itemId=360798593889