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Unread 01-13-2011, 11:47 AM   #1
sc72cj5
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MSD vs. DUI HEI Distributors

What are your thought comparing these two systems? Pros/Cons of each, how do you like yours? Thanks for the help guys!

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Unread 01-14-2011, 04:07 AM   #2
John Strenk
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Didn't we just cover this?


http://www.jeepforum.com/forum/f8/du...h-msd-1150618/
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Unread 01-17-2011, 09:32 AM   #3
johnson30
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Dui

Whatever- I'll reply.

I got a DUI for my 4.2.

Loved it. Here's why.

1) it was better than the stock distributor, which apparently wasnt contributing a whole lot to running the engine.

2) only one wire to hook it up.

(personal preference. I hate having crap everywhere under the hood, so even though I didnt really think much of it going in, I'm glad I went with this one since it de-cluttered the engine compartment).

3) The engine actually starts on a humid day now, and it runs like a champ. Granted, that is not terribly quantitative, but I know what a pain it was before, and now I have no problems.
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Unread 01-17-2011, 09:55 AM   #4
carnuck
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I just use a 6 cyl Chev HEI dist with the drive gear from a Jeep points dist. Always works fine for me!
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Unread 01-18-2011, 01:08 PM   #5
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Quote:
Originally Posted by carnuck View Post
I just use a 6 cyl Chev HEI dist with the drive gear from a Jeep points dist. Always works fine for me!
Heard that works real well, and cheap.

MSD dizzy needs a ignition control module to run (+$200 appx), DUI already has it. DUI easy to swap in cheap backup GM module. MSD legal in CA, DUI is not.
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Unread 01-18-2011, 02:08 PM   #6
gojeepin
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I run an MSD 6T ignition control module with the large cap Motorcraft distributor. I've never had the engine run so good...
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Unread 01-18-2011, 08:56 PM   #7
carnuck
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Quote:
Originally Posted by aanderson14 View Post
Heard that works real well, and cheap.

MSD dizzy needs a ignition control module to run (+$200 appx), DUI already has it. DUI easy to swap in cheap backup GM module. MSD legal in CA, DUI is not.
They usually can't tell if you have the GM dist whether it's stock or not.
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Unread 01-18-2011, 09:57 PM   #8
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Quote:
Originally Posted by carnuck View Post
They usually can't tell if you have the GM dist whether it's stock or not.
HAHA, that is the exact reason I go to the dumbest looking smog check place in town
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