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Old Mar 18, 2006 | 07:27 PM
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From: erie pa
coils

I would like to replace the coil packs in my 97 F150 4.6L......Has anyone used the Accel or MSD packs and did you notice any improvement in performance.......thanks for any replies
 
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Old Mar 19, 2006 | 12:16 AM
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Just my opinion but I'd be surprised if it made an actual difference in performance. The factory igniton is pretty strong. The aftermarket coils do look kinda cool though
 
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Old Mar 19, 2006 | 12:52 AM
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From: erie pa
Smile coils

Yeah theres always the coolness factor to go for......thanks for the reply racer guy. My stock coils are starting to get weak so i'm gonna go with the aftermarkets.Just wondered if I could get some bang for my buck to
 
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Old Mar 19, 2006 | 05:21 AM
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Originally Posted by frankf150
Yeah theres always the coolness factor to go for......thanks for the reply racer guy. My stock coils are starting to get weak so i'm gonna go with the aftermarkets.Just wondered if I could get some bang for my buck to
What makes you think your stock coils are getting weak?
 
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Old Mar 19, 2006 | 02:22 PM
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i just recently bought Accel coils for my 99' 4.6 . They will be put in this week. I'll let you know how that works out for me.
 
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Old Mar 19, 2006 | 02:32 PM
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lately engine has started to break up at 80-85mph........Ford dealer said the LH Coil was the cause
 
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Old Mar 19, 2006 | 02:48 PM
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I would suspect the plugs and/or plug wires first. If you are replacing the coils, the OEM coils are hard to beat, stay away from the aftermarket "performance" coils......
 
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Old Mar 19, 2006 | 03:01 PM
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i would think plug and wires also except they were just changed less... than 2,500miles ago 113.000 miles on truck
 
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Old Mar 19, 2006 | 03:04 PM
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From: erie pa
if there is no performance increase in the "performance" coils i'll probably replace with oem then
 
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Old Mar 19, 2006 | 03:13 PM
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Originally Posted by frankf150
i would think plug and wires also except they were just changed less... than 2,500miles ago 113.000 miles on truck
Do you know what brand plugs? Bosch will cause a mis in Ford products.
 
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Old Mar 19, 2006 | 03:21 PM
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From: erie pa
stock motorcrafts
 
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Old Mar 19, 2006 | 03:24 PM
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Those should be fine!!
 
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Old Aug 18, 2006 | 12:56 PM
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I to am looking into after market coils, I've seen articals in Mustang mags claiming 5hp increase on the 4-tower version (I have a 98) and as much as 15hp on the coil on plug versions. Now I know that all sounds ridiculous, but they post dyno data. I'd really like to know someone whos done it on a 150. Any one out there actually try it?
 
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Old Aug 18, 2006 | 05:12 PM
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if a COP fires each time on compression, and you have no miss, what "increase in performance" are you going to get? The stock coils will easly fire at 5000 RPM on a stock engine and i dont think you want to do that continuously on your motor. at 2000 rpm it should be fine. if it misses at 80 MPH i would look more at the fuel , etc.
 
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Old Aug 18, 2006 | 05:28 PM
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Originally Posted by steve(ill)
if a COP fires each time on compression, and you have no miss, what "increase in performance" are you going to get? The stock coils will easly fire at 5000 RPM on a stock engine and i dont think you want to do that continuously on your motor. at 2000 rpm it should be fine. if it misses at 80 MPH i would look more at the fuel , etc.
Thanks Steve,

I don't disagree, this is why I am asking where they are getting the increase. My F150 is a 98 and is not COP anyway but even the 5 hp from the four tower version would be worth it. The dyno dosn't lie either, but I'd sure like some verification before I spend the money. I'm not really concerned with a miss, it's time for plugs and maybe wires so I figured now would be a good time to do coils too if there is something to be gained.
 
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