Well, I just received an email back from Mallory. They won't give me a deal on a new one
but they they came out with a new module that replaces the old MAL-605 unit that sells for much cheaper, as in, half cheaper..$43.95! and is supposed to be a better unit. Here is what they said:
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First I have to set you straight. This is NOT a common problem. If you have a problem with your vehicle (electrical system), or an install problem, you will kill modules, no matter the brand. What will kill a Unilite will also kill a MSD, GM HEI, Ford Duraspark, and others.
The most common causes are:
1) Ineffective grounding of the vehicle. You need clean and complete grounds of adequate size. (battery to engine; battery to body; engine to frame; engine to body; body to frame).
2) Sticking alternator or regulator. If a cheap diode or regulator sticks, it will dump high amperage to ground. The cheap testers at the parts stores will not catch it. The only way to see it is by testing the units on a scope.
3) Using cheap battery chargers/boosters will also spike to ground.
We have seen customers with the same module woring perfectly for 20+ years, and other individuals kill three on a Saturday afternoon based on one of the issues above.
Secondly, the Active Power Filter is useless for stopping a power spike. It is more compared to using a rabbit ear antenna on your TV set in that it won't give you a perfect picture, but it will take away some snow and clean up the picture slightly. The Active Power Filter only cleans up dirty power signals by chopping off a bit of the sharp edges of the signal. A better unit is the Circuit Guard, part #MAL-29371 that has both the Filter and a big capacitor in it. The capacitor will absord "most" power spikes.
Now for your deal. I hope you have read what I wrote for you above. We now offer a new module called the E-Spark. Mallory gave it a different name but it is still basically a Unilite. It installs the same and operates the same. But, it is based upon a better circuit system and also at a lower price of only $43.99. We stopped selling the #605 Unilite when these came out because they are better for the customer in both technology and price.
We do not have them listed on the current website, but if you just order the #MAL-605 online you will automatically receive the lower-priced E-Spark module.
http://www.centuryperformance.com/de...uct_id=MAL-605
Lastly, people on those message boards do not understand the ignition module, what can kill it (and other electrical components on their vehicles), nor how to find the true cause of the problem. For them it is easier to blame the effect (dead module) instead of the cause, which is most often due to one of the issues I mentioned above.
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