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Old 11-01-2008, 03:07 PM   #1
48prerunner
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Default screamin demon coil

anybody try this coil? Only found one guy on another mustang site and evrything else i find is on explorer sites. Manufacture claims 2-3 mpg an .5 seconds off time.
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Old 11-01-2008, 03:52 PM   #2
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not a chance. only thing it lets you do is gap the plugs a little farther. might see one or two extra ponies, it will not cut down ETs by a half second.
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Old 11-01-2008, 03:54 PM   #3
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can't say about the et reduction or mpg gain as I just put mine on 2 days ago but I will keep you updated if I see a mpg gain
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Old 11-01-2008, 07:55 PM   #4
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i had one just as a stock replacement, spark is not going to help with any power or E.Ts
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Old 11-02-2008, 01:12 AM   #5
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I think the only benefit may be a stronger, more consistent spark through the RPMs. Definitely not the manufacturer's claims. Maybe beneficial to F/I guys. No coil-on-plug option for the 4.0's (that I know of), so maybe this is the best option.
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Old 11-02-2008, 02:14 AM   #6
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I would say that if your stock coil is OK that you will see NO difference. No coil is going to drop your times .5 sec! or give you 2-3 mpg mpg. If it sounds to good to be true.......
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Old 11-02-2008, 07:29 AM   #7
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Quote:
Originally Posted by 4literv6 View Post
can't say about the et reduction or mpg gain as I just put mine on 2 days ago but I will keep you updated if I see a mpg gain
Good to know so did you replace wires too?

wish your suspension set up your selling didnt have so much drop in the rear
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Old 11-02-2008, 08:31 AM   #8
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I have had two so far, one on my previous 95 V6 which made a huge difference. I picked up 2 MPG and car ran like a rocket. Based on my prior experience with the screamin demon coil, I put one on my 05 V6 along with the Livewires igntion wires. The 05 also picked up some MPG's as well as the car really wants to jump to redline!
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Old 11-02-2008, 10:29 AM   #9
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no wires just the coil, suspension setup is sold. I only got it because I found it for $50 from a forum member and I though it might help when I add the vortech
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Old 11-08-2008, 09:00 AM   #10
48prerunner
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Quote:
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no wires just the coil, suspension setup is sold. I only got it because I found it for $50 from a forum member and I though it might help when I add the vortech
any update 4liter?

found this on another site

http://www.allfordmustangs.com/forum...tributors.html
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