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Author Topic: TFI Upgrade for the Iron Duke?  (Read 6363 times)

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Offline siguy8

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TFI Upgrade for the Iron Duke?
« on: January 14, 2012, 11:47:02 PM »
I just looked at the Eaglepedia for the TFI upgrade I did on my previous SX/4 with the 258. Now I've got an SX/4 with the Iron Duke. Does anyone have recommendations for doing the TFI upgrade on the 4 cylinder? Thanks!

-Simon
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Offline rollguy

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Re: TFI Upgrade for the Iron Duke?
« Reply #1 on: January 15, 2012, 12:02:48 AM »
If anything, it would be an HEI.   It is possible that parts from most any later model Chevy with a 6 cyl would bolt right in.  I am not sure if the V8 distributor is the same for a 4 cyl.  If it is, then the possibilities are endless!   There are many ignition options available for a Chevy V8.
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Offline ammachine390

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Re: TFI Upgrade for the Iron Duke?
« Reply #2 on: January 15, 2012, 12:07:06 AM »
The Iron Duke should already have HEI.
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Offline IowaEagle

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Re: TFI Upgrade for the Iron Duke?
« Reply #3 on: January 15, 2012, 08:20:50 AM »
The Iron Duke is a GM engine and already has High Energy Ignition (HEI)
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Offline siguy8

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Re: TFI Upgrade for the Iron Duke?
« Reply #4 on: January 15, 2012, 10:12:07 AM »
Sweet. Is there any use in upgrading any components, or is simple replacement going to be my best bet?
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Offline carnuck

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Re: TFI Upgrade for the Iron Duke?
« Reply #5 on: January 16, 2012, 12:30:06 AM »
Got a pic of the dist? I wonder if they did GM or used a Motorcraft setup?
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Offline mudkicker715

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Re: TFI Upgrade for the Iron Duke?
« Reply #6 on: January 16, 2012, 09:46:41 AM »
Now that its mentioned. The one 4cyl i saw was not hei.
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Offline shaggimo

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Re: TFI Upgrade for the Iron Duke?
« Reply #7 on: January 16, 2012, 11:16:14 AM »
Quote from: siguy8 on January 15, 2012, 10:12:07 AM
Sweet. Is there any use in upgrading any components, or is simple replacement going to be my best bet?

There's always room for improvement. First you have find out which module is in there, 4, 5, or 7 pin. I'm not familiar with the 4cyl set ups, do these have ccc carbs? Either way they are upgradable, with more potent components.
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Offline IowaEagle

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Re: TFI Upgrade for the Iron Duke?
« Reply #8 on: January 16, 2012, 06:36:54 PM »
Quote from: mudkicker715 on January 16, 2012, 09:46:41 AM
Now that its mentioned. The one 4cyl i saw was not hei.

Is it possible you saw an Eagle with the rare (for Eagles)  AMC 2.5 engine?   

As far as I know and checking in the TSM's the Iron Dukes used by AMC used that engine's HEI set up.
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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

Offline mudkicker715

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Re: TFI Upgrade for the Iron Duke?
« Reply #9 on: January 16, 2012, 06:53:27 PM »
Quote from: IowaEagle on January 16, 2012, 06:36:54 PM
Quote from: mudkicker715 on January 16, 2012, 09:46:41 AM
Now that its mentioned. The one 4cyl i saw was not hei.

Is it possible you saw an Eagle with the rare (for Eagles)  AMC 2.5 engine?   

As far as I know and checking in the TSM's the Iron Dukes used by AMC used that engine's HEI set up.

Cqaannot remember off hand. I only recall the dissy being non gm.
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Manitowoc WI
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