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Old 02-21-2011, 10:13 AM   #21
Hardatwork
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Default Re: hei coil

Thanks BrewCity I am going to get the parts together. I am looking forward to this modification. I hope it helps with my slow acceleration.

Chuck
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Old 02-21-2011, 10:44 AM   #22
seahunter
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Default Re: hei coil

Buy the cheapest HEI module and coil you can find. I bought both off E-bay for less than $35, including shipping.

HEI module
http://cgi.ebay.com/ebaymotors/HEI-D...Q5fAccessories

Coil
http://cgi.ebay.com/ebaymotors/ws/eB...m=170569056607


Don’t worry if the terminals on the coil are marked or not. A simple continuity test will determine the polarity. If worst comes to worst, it's two wires. If it doesn't work the first time swap the two wires on the coil.

Heat is a killer of electronic components. Simply bolting it to the frame isn’t going to cut it over time. I would recommend using a heat sink (radio shack)of some sort and silicon grease between the HS and the module. My HEI module gets just barely warm to the touch.
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Old 02-21-2011, 10:47 AM   #23
BrewCityMusic
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Default Re: hei coil

If you're looking to add some pep, have you considered the shorter belt -or- possibly shimming your clutch? The belt is a $30 5-minute swap and adds quite a bit of low-end and accel to the cart ... The same results can be had by shimming your clutch, but that's a bit more involved (but then again, about $3)
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Old 02-21-2011, 10:50 AM   #24
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Default Re: hei coil

@ Seahunter - mine has been good for several hundred hours of runtime bolted to the frame - you just need to make sure and clean a completely bare spot on the frame so you get good thermal conductivity (also, depending on the module, some have a small molded plastic alignment tab on the rear that needs to be nipped off with a pair of endcutters to ensure full contact)
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Old 02-21-2011, 11:15 AM   #25
seahunter
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Default Re: hei coil

Quote:
Originally Posted by BrewCityMusic View Post
@ Seahunter - mine has been good for several hundred hours of runtime bolted to the frame - you just need to make sure and clean a completely bare spot on the frame so you get good thermal conductivity (also, depending on the module, some have a small molded plastic alignment tab on the rear that needs to be nipped off with a pair of endcutters to ensure full contact)
Heat is a known killer of electronics. How many hours will ithe module go before it burns out w/o a heat sink? How many hours will it go if you use a heat sink? Any doubts that it will last longer with a heat sink than without?

The HEI module on my V6 outboard is water cooled. That should tell you something.
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Old 03-08-2011, 08:03 PM   #26
madoc1
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Default Re: hei coil

update- the 90 mustang 4 cyl coil does not like heat. it would run good for a while then fade. wait while and it ran, then fade. put the stock one on and all is good. don't know if it was a bad coil or too much heat- thinking heat. did like the way was mounted tho.

still looking for the perfect cheap coil! maybe a bosch blue?
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Old 03-08-2011, 10:29 PM   #27
yellowhorse7
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Default Re: hei coil

An oil filled coil has to be mounted vertically(or close to it) to keep the windings fully covered in oil for cooling. I'm not sure if those are oil filled or not SHake it
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Old 03-09-2011, 08:30 AM   #28
madoc1
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Default Re: hei coil

that coil is an e-coil. no oil.
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Old 03-09-2011, 08:57 AM   #29
yellowhorse7
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Default Re: hei coil

Correct
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Old 03-09-2011, 08:16 PM   #30
camojfk
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Default Re: hei coil

will this work on my 82 2 stroke it sounds like it would help
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