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Old 04-20-2011, 01:47 PM
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what color duraspark box?

What color duraspark box is best for a 1975 460 in NY? mention location because I'v heard some of them were designed for high altitude.. Also, when this is in the car I would like to put the box under the dash ( but access able ). I'd like to bundle the harness with the dash wiring. I accidently cut the OEM harness in 1/2 before I realised what it was. but I have both ends of connectors and can make a new harness easilly.. I didn't take the box that was on the car cause it would have been $40 extra and was just a replacement 1 anyway

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Old 04-20-2011, 03:31 PM
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I would think the blue one. However, I now use a GM module in my Duraspark. If you use a Duraspark box, stay with Autolite or Motorcraft, all others are junk.
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Old 04-20-2011, 04:48 PM
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Matt - Like said above, go with the blue grommet, black or brown might be/probably ok too, but NOT the yellow.

Here's some good info:

http://www.ford-trucks.com/user_gall...1&albumid=1232

I know many folks hate these Duraspark systems, but over many cars, never had a failure. The TFI - different story

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Old 04-20-2011, 05:00 PM
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X 2 . the only difference (IIRC ) between the blue and brown is that 2 wires are reversed in the plug.
The yellow was for a car with altitude compesation as there is 3 plugs on it instead of two. The third goes to another control unit .
As far as a gm module look here :
http://www.street2mud.com/forum/index.php?showtopic=99
Look at the photos close. Its kinda funny. One of the shots shows the inside of the box and it says made in africa (LOL)
Sounds like it needs re-engineered.
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Old 04-21-2011, 12:37 AM
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Thanks. Blue grommet it is.. I knew about the HEI control modual able to run the duraspark, but I think a Chrysler ignition box also could. I'd rather have the box neat and clean under the dash rather than have an HEI modual that needs zip tied to a PC heat sinc..

My grandparents had a '85 IIRC LTD with the early version of the TFI, and they went thru moduals weekly, and finally gave up and sold it

Last edited by matt167; 04-21-2011 at 12:43 AM.
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Old 04-21-2011, 05:29 AM
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Ford got sued pretty heavy for a couple deaths related to the early TFI module failures , people died in wrecks because the modules failed at critical times,like pulling out in traffic and such.
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Old 04-10-2012, 05:57 PM
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Quote:
Originally Posted by latech
X 2 . the only difference (IIRC ) between the blue and brown is that 2 wires are reversed in the plug.
The yellow was for a car with altitude compesation as there is 3 plugs on it instead of two. The third goes to another control unit .
As far as a gm module look here :
http://www.street2mud.com/forum/index.php?showtopic=99
Look at the photos close. Its kinda funny. One of the shots shows the inside of the box and it says made in africa (LOL)
Sounds like it needs re-engineered.
My memory did not serve me well here. The Brown module requires an external computer to run, also a crankshaft sensor is part of the system.
The distributor on the system with the brown grommet (duraspark III) has no hall effect sensor or any advance mechanisms.
The Module with the Blue Grommet is the desirable one for most any carb setup and distributor with mechanical and vacuum advance systems.
I have seen several different color grommets on Duraspark modules,blue, white, green, brown, and yellow - of which There are 2 different types, one yellow has a third connector, for connection to a control unit that compensates for alttitude.
There is also a red grommet module, which I dont recall.
I am posting this info to correct my mistake as I was wrong about the brown module and its wiring/function.My post was incorrect and misleading.
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Old 03-14-2014, 08:20 PM
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yellow box

I took a ing system out of a 79 ltd to put in my 68 f100 (it has a 351w I put in )the system is a yellow box what do I have to do to put a blue box on
thanks
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Old 03-14-2014, 08:57 PM
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Ford IGN modules.

Brand new ford pickups would overheat the module on hot days. One of the Sup's got to drive a truck right off the assembly line each day for an "extended test drive", On hot days he would stop halfway home and buy a cup of ice water and pour over it .
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