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Old 05-01-2014, 05:24 PM   #36
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You don't ever want to use non motorcraft cops anyway.

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Old 05-01-2014, 07:48 PM   #37
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thanks. Im aware that the non oem cops have a much higher failure rate. In the case of my FX4, I bought 10 for $80 on flebay. 2 were DOA, but the rest have held up fine. I bought the 10 pack to allow for a failed one (or 2). they even pulled my 9000 lb camper to and from N Illinois to Florida without hiccup.

At that price, I could buy 40+ of them for the price of 8 oem cops. Well worth a few failures IMO... they are easy enough to change in a couple minutes. But Global doesnt sell DG508s
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Old 05-01-2014, 08:13 PM   #38
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You can buy the rebuild kit to make the OEM ones like new for $30 lol.
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Old 05-02-2014, 03:27 PM   #39
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Old 05-02-2014, 03:28 PM   #40
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I dont know why its sideways.
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Old 05-02-2014, 06:05 PM   #41
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Believe it or not I kind of get what you are talking about. The automatic cars seem to make a different sound than the manuals. It might be something inherent with the automatic transmissions in these cars. I've never ridden in one so I don't know.
Your car seems to be running good it's just that maybe the New Edge GT's aren't the fastest cars in the world...
Maybe FA will be able to add some insight.
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Old 05-02-2014, 06:11 PM   #42
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Believe it or not I kind of get what you are talking about. The automatic cars seem to make a different sound than the manuals. It might be something inherent with the automatic transmissions in these cars. I've never ridden in one so I don't know.

Your car seems to be running good it's just that maybe the New Edge GT's aren't the fastest cars in the world...

Maybe FA will be able to add some insight.

I test drove a 12 v6... It was fast but the torque is undeniable in my new edge. After driving both harshly, I think my new edge would win.
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Old 05-02-2014, 06:34 PM   #43
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I test drove a 12 v6... It was fast but the torque is undeniable in my new edge. After driving both harshly, I think my new edge would win.
Yep. The power curve is different between a V6 and a V8.
Peak power ratings can be deceiving...
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Old 05-02-2014, 06:43 PM   #44
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Lol, straybullitt. I know. After I watched the video, i thought it sounded pretty good... it sounds different in person....actually, its more of a feel. It just feels rough. its smooth on light accel or maintaining speed, but on half throttle or more, it feels like a diesel. The tranny makes a little bit of a whine in first, but it shifts really good, so i hope its fine.

That video turned out to be pretty worthless in describing the grittyness... plus I couldn't hammer it cuz it was raining. I spun out the two times i tried.

V6 stang, my 2012 v6 is super smooth, but has very little bottom end. It wont spin out unless its raining. However, it screams after 2-3k rpm, and takes my 4.6 overall. The power curve is entirely different between the two.
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Old 05-02-2014, 06:49 PM   #45
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thanks. Im aware that the non oem cops have a much higher failure rate. In the case of my FX4, I bought 10 for $80 on flebay. 2 were DOA, but the rest have held up fine. I bought the 10 pack to allow for a failed one (or 2). they even pulled my 9000 lb camper to and from N Illinois to Florida without hiccup.

At that price, I could buy 40+ of them for the price of 8 oem cops. Well worth a few failures IMO... they are easy enough to change in a couple minutes. But Global doesnt sell DG508s
$8 COP's?!!?!??!!??

I don't think that I could do it.
I see your reasoning but the prospect of chasing down one bad COP after another, for eternity, wouldn't be ok with me.
If you ever get bored, search cliffyk's posts. He has actually done some testing with COP's and the results will make you understand why the OEM coils are the best choice for performance and durability.
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Old 05-02-2014, 07:01 PM   #46
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No, I agree. the oems are definitly the best...

However, my scanner allows me to view the individual cops as the truck is running. I can monitor all of them for any irregularities. One Global cop was just plain bad when I installed it, but the other (that I ended up replacing) wasn't causing a noticable misfire, but I saw that it was giving abnormal readings on my scanner, so I replaced it anyway. For me, it was a calculated risk that I was willing to take.

Unfortunatly, that same scanner doesnt give the same cop monitoring option when plugged into the 02 GT. I guess the stang doesnt have that option for whatever reason...I really wish it did. it would make replacing a bad one a lot easier.
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Old 05-02-2014, 07:16 PM   #47
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is that light acceleration? because if not your car is a dog
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Old 05-02-2014, 07:18 PM   #48
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No, I agree. the oems are definitly the best...

However, my scanner allows me to view the individual cops as the truck is running. I can monitor all of them for any irregularities. One Global cop was just plain bad when I installed it, but the other (that I ended up replacing) wasn't causing a noticable misfire, but I saw that it was giving abnormal readings on my scanner, so I replaced it anyway. For me, it was a calculated risk that I was willing to take.

Unfortunatly, that same scanner doesnt give the same cop monitoring option when plugged into the 02 GT. I guess the stang doesnt have that option for whatever reason...I really wish it did. it would make replacing a bad one a lot easier.
That's a neat feature!
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Old 05-02-2014, 07:21 PM   #49
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mine sounds fine, just feels... dry or something.. I am going to do compression tests soon.. who knows maybe my engines all clapped out or maybe I am just expecting more from this car in stock form then I am getting.
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Old 05-02-2014, 07:33 PM   #50
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is that light acceleration? because if not your car is a dog
Lol! No, thats a little more than half throttle at take off, but full throttle when It dropped into passing gear. It was raining, so I had to keep off of it a bit to keep from spinning out.

But I do think its a bit doggy.

Toward the end of the vid, I stop and then try to punch it and spin out. The trac comes on twice. you can see the green tire on the dash.
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Old 05-02-2014, 07:36 PM   #51
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That's a neat feature!
I know. It f*ckin rocks. Thats why I didnt mind buying cheap cops. But I guess that software is part of the FX4 ECU and not in the GT. I have no way to tell which cop(s) is bad on the GT, and I dont wanna buy 8 oems.
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Old 05-03-2014, 07:36 AM   #52
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Had an o2 sensor go out and my car ran like complete sh*t, jerky during acceleration and just felt slow and doggish, replaced it and boom all better, but I also threw a code for the o2 sensor
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Old 05-03-2014, 07:44 AM   #53
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Ya, I have no codes or CEL. I verified that the CEL/codes work by unplugging the MAF and running it. Both popped up.
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Old 05-03-2014, 08:31 AM   #54
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Not sure man... I know our gt's stock form can beat a stock 3.7... I know that i slammed my car once and was unimpressed by second gear... Third definitely seemed to be the "go" gear. In my 99v6 it was second gear that was hella strong.

Maybe you are just used to the gearing of your 3.7 and it's different for your GT.

Btw, how are you doing your 0-60's? Because your speedometer is off if you have gears with no tune. Maybe that's throwing your times off.
A stock 2v is not faster than a stock 3.7.

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Old 05-03-2014, 10:26 AM   #55
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A stock 2v is not faster than a stock 3.7.

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Guess that depends on who's driving
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Old 05-03-2014, 10:36 AM   #56
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my stock 3.7 is definatly faster than my stock 4.6.. a couple car lengths by 75 mph. Ive ran them head to head.
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Old 05-03-2014, 10:41 AM   #57
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my stock 3.7 is definatly faster than my stock 4.6.. a couple car lengths by 75 mph. Ive ran them head to head.

You also feel like your cars not running to it's potential. I'm just saying there been plenty of threads/videos saying it's a drivers race with the edge to the GT. Doesn't need to go farther then that unless people want to argue just to argue.
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Old 05-03-2014, 10:57 AM   #58
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The new 3.7's are faster then the 3vs stock for stock.

I have had all of these cars at one point. With my wife having a 3.7 at one time. The 2vs stock are complete turds.

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Old 05-03-2014, 10:58 AM   #59
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Op you didnt sell your 3.7 for the 2v did you?

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Old 05-03-2014, 11:01 AM   #60
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Op you didnt sell your 3.7 for the 2v did you?

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No. He has both. And I mean.. All of our mustangs are turds when you compare them to something better... So opinions are pointless. Lol it's all about your perspective. I think Prius are crap cars.
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Old 05-03-2014, 12:14 PM   #61
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Never said the 2v was crap. Just that it is a turd in stock form. There is a reason the 3.7's stock for stock are over a second faster at the track.

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Old 05-03-2014, 01:46 PM   #62
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I can verify, My 2v is a turd. A 3.7 will wipe the floor with a stock 2V. Ask me how i know. I've got a catless exhaust, 3.73 gear, and bama tune and still lost to a 3.7. But hey. Mine is a nice shiny, polished turd. As for OP's sluggishness. Does it feel sluggish all the time? Or only during bad weather? My old V6 absolutely hated heavy raining days, and my GT now isn't very fond of it either. If it's a constant sluggish feeling then it could be something as simple as a fuel filter starting to clog up with gunk. If i had to take a guess i'd lean more towards fuel issues in your case.
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Old 05-03-2014, 02:15 PM   #63
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I'm not trying to argue. Just stating the facts about my 2 mustangs.

In my GT (that feels rough and grindy/gritty), I've changed plugs, changed fuel and air filters, cleaned cops, replaced tps, replaced egr, replaced pcv, cleaned MAF, cleaned IAC, flushed tranny, changed engine oil, fixed vacuum leak, removed and cleaned throttle body and intake plenum, changed tie rods and ends, replaced ball joint, and had it aligned, all in the last week. Still feels gritty and grindy.

I just took video of back to back 0-60 runs in both my 2012 3.7 and 2002 GT On the same road, 10 minutes apart . I will post them shortly. You be the judge.
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Old 05-03-2014, 04:11 PM   #64
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Build Date: 10.02.2012
Vehicle Line: Mustang (2005/)
Body Style: Coupe
Version: Base
Engine: 3.7L 4V PFI V6 NA Petrol
Transmission: 6 Speed Automatic Trans (6R80)
Drive: LHD RWD
Axle Ratio: 2.73

Build Date: 10.06.2002
Vehicle Line: Mustang
Body Style: Coupe
Version: GT
Engine: 4.6 SOHC EFI
Transmission: 4R70W (AODE) 4-Speed Auto Trans
Drive: LHD RWD
Axle Ratio: 3.27


Same road, same time of day, 10 minutes apart. The 3.7 has the Hill Assist off, and full Advancetrac off.
The GT has Trac off, and O/D off.
Floored them each at launch and let off just past 60.
Both bone stock.
The GT had a slight stumble at about 55, that wasn't me letting off.

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Old 05-03-2014, 04:15 PM   #65
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3.7 is definitely faster

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Old 05-03-2014, 04:25 PM   #66
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All of my tune up efforts have paid off a little. It starts more consistantly, but still had a mis-start yesterday. The idle is more consistant and only dives when stopping and the ac/heat is on. my 0-60 has improved some as well.

However, it still feels rough.

My original question is "My GT is slow and rough. is that normal?"
I still feel that way, but I'm starting to lean towards the idea that its normal. This is my first 4.6, so I dont have anything to compare it to, which is why I came here.

Short of replacing cops and injectors, I dont think there is much I can do to smooth it out while leaving it stock. If this car is normal like this, then I can live with it. I bought it as a daily driver to get me to and from work, but I also wanted something fun to drive, and it gets better mpg than my FX4.
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Old 05-03-2014, 04:47 PM   #67
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By my stopwatch, Im getting about 7.1 sec with the 3.7 and about 7.7 sec with the GT.

The 3.7 isnt too far out of line from what Ive read about factory spec 0-60, but the GT is way off...
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Old 05-03-2014, 04:55 PM   #68
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2vs are nothing impressive without exhaust/full Bolton's / tune

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Old 05-03-2014, 05:06 PM   #69
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Never said the 2v was crap. Just that it is a turd in stock form. There is a reason the 3.7's stock for stock are over a second faster at the track.

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And what sort of track might that be?

3.7's are NOT "over a second faster at the track"... I think that you have that time confused with the Coyote powered cars.

A stock PI New Edge GT will do a 13.9 quarter mile.
A stock 2013 V-6 will do a 13.7 quarter mile.

It looks like the 3.7 has a 4/10ths better 0-60 time, though.
Another fun fact: The 3.7 has 20 ft/lb LESS torque than a 2V 4.6.

If that's not a drivers race then I don't know what would be...
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Old 05-03-2014, 05:43 PM   #70
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Keep thinking that. The 2v's are turds in stock form. And the 3.7s are not. I have owned both of these cars. The 2v run a lot slower than a 13.9 stock

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