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Upgraded to a hotter coil

Started by MontanaEagle, January 10, 2011, 09:20:51 PM

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MontanaEagle

January 10, 2011, 09:20:51 PM Last Edit: August 22, 2022, 05:01:06 PM by vangremlin
I replaced my spark plugs and wires back in November, and ammachine390 showed me this PDF:

http://www.amceaglesden.com/images/Downloads/MIU.pdf

Basically is shows how to upgrade to a hotter coil.  Well I wished I hadn't just bought new wires, but figured I'd do the upgrade eventually (aka when I had enough money).  Finally just after Christmas I had enough (it cost roughly $110 for everything).  So I pulled the old coil out, and pulled all my wires, gapped my plugs, put a bigger rotor cap in and all that jazz.  And my only problem was that I switched my plug order around (again) at least this time I knew what was wrong.













I did go back in and change the connectors that attach the wires to the coil.  I didn't have any connectors and just wrapped the nodes with the wire as can be seen in pic 2.  Also, I re-did the spark plug boots as I didn't set those up quite properly.  Long story short, Francine starts a little better now.  Still takes a bit of cranking in the cold, I don't even try in this temp (currently about 5 degrees out).  I'll replace the carburetor probably over the summer to help her start a little better.
1984 AMC Eagle Wagon (Soon to be for mountain fun times)
1997 Honda Civic (Daily driver in the winter)
2009 JM Star Scooter (Daily driver in the summer)
2010 Schwinn Hybrid Bike (Daily driver in Spring and Fall)

"It may be too early to drink scotch, but it's never too early to think about scotch"

68AMXGOPAC

#1
January 10, 2011, 10:47:02 PM
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.

MontanaEagle

#2
January 10, 2011, 10:49:00 PM
Quote from: 68AMXGOPAC on January 10, 2011, 10:47:02 PM
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.
Um... is that the feedback stuff with the little yellow plugs?
1984 AMC Eagle Wagon (Soon to be for mountain fun times)
1997 Honda Civic (Daily driver in the winter)
2009 JM Star Scooter (Daily driver in the summer)
2010 Schwinn Hybrid Bike (Daily driver in Spring and Fall)

"It may be too early to drink scotch, but it's never too early to think about scotch"

ammachine390

#3
January 10, 2011, 11:40:36 PM Last Edit: December 27, 2011, 03:57:42 PM by ammachine390
Nice Job. Just curious to know why you chose a Accel Coil (if thats what it is.) instead of of the pertronix?

Quote from: MontanaEagle on January 10, 2011, 10:49:00 PM
Quote from: 68AMXGOPAC on January 10, 2011, 10:47:02 PM
Wow nice job !! She even has that set of triple vacumm connectors on the valve cover in place.
Um... is that the feedback stuff with the little yellow plugs?


Yes, those are the feedback vacuum solenoids. They are used to control the idle speed, and where the air is directed to, either upstream or downstream.
Dan
1981 AMC Concord DL 258 Auto

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xtcinoz

#4
March 04, 2011, 02:51:33 AM
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.
68 Rambler Ambassador, 77 Hornet AMX, 70 Hornet 4dr sedan, gone but not forgotten. 83 AMC Eagle Sport Wagon making this my DD , just add 89 Jeep Comanche Sport 4cyl fi beater. 76 Chevy HvyDuty 1/2, 75 Chevy Camero (project or 4 sale) undecided.

MontanaEagle

#5
March 04, 2011, 10:42:31 AM
Quote from: xtcinoz on March 04, 2011, 02:51:33 AM
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.

I used this coil, I don't know about the Protonix one:

http://www.amazon.com/gp/product/B00064P99W

and these plug wires:

http://www.amazon.com/gp/product/B00064P99W

With the Bosch Platinum plugs (I found those on RockAuto and gapped them to .045).  I also just searched Rock Auto for a 1985 Ford F-150 with a 300 CID engine for the cap, adapter and rotor.
1984 AMC Eagle Wagon (Soon to be for mountain fun times)
1997 Honda Civic (Daily driver in the winter)
2009 JM Star Scooter (Daily driver in the summer)
2010 Schwinn Hybrid Bike (Daily driver in Spring and Fall)

"It may be too early to drink scotch, but it's never too early to think about scotch"

maddog

#6
March 04, 2011, 08:05:20 PM
if you want some really good plugs try out the E3 diamond fire plugs they give a noticeable increase in hp and a bit better mpg as well. plus they are guaranteed for five years or 100,000 miles.
1998 CHEVY S10 (DAILY DRIVER/PROJECT) INTIMIDATIN'
1980 AMC EAGLE WAGON (PROJECT) EAGLE EYES
http://forums.amceaglesden.com/index.php?topic=30758.0
1983 AMC EAGLE LIMITED WAGON-SURVIVOR (gone)
http://forums.amceaglesden.com/index.php?topic=32372.0

amc78concord

#7
March 04, 2011, 08:33:53 PM
Montana Eagle, Do you notice any performance gains at all? Or is just better when starting?
-Rob
Nekoosa, WI
-82 Eagle Limited Wagon (4.0 Head Swap, Holley 4bbl Carb, Headers, MSD Ignition with Team Rush Upgrade)
-82 Eagle SX/4
-83 Eagle Limited Wagon "Woody"
-84 Eagle Wagon
-85 Eagle Wagon
-Many Others... :amc:



:duck:

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MontanaEagle

#8
March 05, 2011, 11:05:43 AM
Quote from: amc78concord on March 04, 2011, 08:33:53 PM
Montana Eagle, Do you notice any performance gains at all? Or is just better when starting?

I'm not sure if it is because of the upgrade, but before I was getting about 14.5 mpg (always in 4wheel drive, she's not running right in 2 right now) with the upgrade I'm at about 16 highway 15.5 otherwise.  I think it's from the upgrade.  I don't notice any more power or anything like that.
1984 AMC Eagle Wagon (Soon to be for mountain fun times)
1997 Honda Civic (Daily driver in the winter)
2009 JM Star Scooter (Daily driver in the summer)
2010 Schwinn Hybrid Bike (Daily driver in Spring and Fall)

"It may be too early to drink scotch, but it's never too early to think about scotch"

Jurjen

#9
March 05, 2011, 11:19:11 AM
Quote from: xtcinoz on March 04, 2011, 02:51:33 AM
I noticed the Accel coil also is that the 42,000 v. coil? I havn't been able to find any Protonix coils any where.

The Accell 8140 is 42,000V at 12V (and 1.4 Ohms)
Due to the resistor wire in the Eagle (1.35 Ohms) once running, it will have 6V primary voltage, so secondary will be split in half too: 21,000V.
Basically it is the perfect replacement for the existing coil.
If you want a little more voltage than you wil have to buy the 3 Ohm Pertronix and bypass the the resistor wire.
"sparrows fly in flocks, eagles fly alone"

Eagle Wagon Limited 1983, Citroen C-Crosser 2010, Triumph Bonneville 1969, Yamaha XJR1300 1999, Yamaha TX750 1973

https://www.youtube.com/watch?v=Tf0jpiW6tRI

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Eagleearl

#10
March 05, 2011, 03:28:43 PM
Would a person need to open up the sparkplug gap to get the most from a hotter spark? Does anyone know what coil Ford used with their duraspark ignition and what sparkplug gap they used?

mudkicker715

#11
March 05, 2011, 03:35:22 PM
As far as gapgoes my msd 600 ignition is in the .05ish range. It had to be. That .035 let me know it was wrong.

My 96 vicky has a hot spark as well and is .054 gapped



Manitowoc WI

IowaEagle

#12
March 05, 2011, 08:36:12 PM
I went to .045 with the Accel coil.
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Not a Jeep.  Not a Car.  Its an AMC Eagle!

1982 Eagle SX/4 Sport;
1980 Concord DL;
1970 Ambassador 2 Dr HT, SST
2002 Hyundai Santa Fe;
2008 Jeep Patriot Sport - Freedom Drive II

jim

#13
March 05, 2011, 08:58:55 PM
Quote from: IowaEagle on March 05, 2011, 08:36:12 PM
I went to .045 with the Accel coil.
Likewise.
I'm right 98% of the time, and I don't care about the other 3%.
"The constitutions of most of our States assert that all power is inherent in the people;
that... it is their right and duty to be at all times armed."
--Thomas Jefferson to John Cartwright, 1824. ME 16:45
What part of "shall not be infringed" do they not understand?
08 Impala
01 Yukon 4X4
(There's more to life than fuel mileage)
83 Eagle wagon; shared responsibility as daily driver
88 Eagle white woody wagon; shared responsibility as daily driver
86 wagon parts car
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Jurjen

#14
March 06, 2011, 06:21:42 AM Last Edit: August 22, 2022, 05:04:10 PM by vangremlin
I have 0.045" with the Pertronix coil and AP985 plugs.
Here's my spark plug guide:
http://forums.amceaglesden.com/index.php?topic=23101.0
"sparrows fly in flocks, eagles fly alone"

Eagle Wagon Limited 1983, Citroen C-Crosser 2010, Triumph Bonneville 1969, Yamaha XJR1300 1999, Yamaha TX750 1973

https://www.youtube.com/watch?v=Tf0jpiW6tRI

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