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Old 05-08-2009, 01:57 PM   #1 (permalink)
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I have a 1982 Dodge D150 with a /6 and 904with lockup.Shortbed truck got 11mpg when purchased.Replaced stock ignition [leanburn]with home made HEI conversion.Got 20mpg on last tank.Just getting started on mods.
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Old 05-08-2009, 02:21 PM   #2 (permalink)
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Welcome to the site.

Are you saying that replacing your ignition alone almost doubled your mileage? Excuse me, but that sounds a bit far fetched. Care to explain?
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Old 05-08-2009, 03:39 PM   #3 (permalink)
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Old 05-08-2009, 05:15 PM   #4 (permalink)
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The original ignition was the dodge "lean burn" computor.I replaced the distibutor with an electronic distributor with mechanical and vacuum advance.I used a HEI module from a 1980 gm distibutor to control the coil.The original was not advancing the spark,all I had was initial advance.GM HEI conversion (A 'How To') - Dodge Talk Community Forum Slant Six Forum, :: View topic - HEI Electronic Ignition Retrofit How-To The links above will explain further.
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Old 05-08-2009, 05:23 PM   #5 (permalink)
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Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,588 Times in 1,555 Posts
Ah, no spark advance. Yeah that would probably do it. Thanks for explaining.

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