Big 3 upgrade... Need Help

J

JERM

Registered
Ok, so i am pretty new around here and to lincolns all together. My previous vehicle was a 2000 Chevy Silverado 5.3 V8. I did many upgrades to it and one of those that i would like to do to my 93 Mark VIII is what they called the Big 3 upgrade. Here is a link to the setup:
http://www.fullsizechevy.com/forums...deo-electronics/120517-nbs-big-3-upgrade.html

There are a lot of guys running this setup with great reviews, and i was wondering is there any reason why i could not do this on my Mark VIII? I do not want to damage any electrical components. Has anyone done anything like this to their Mark VIII?
 
I wouldn't hurt, but you can go overkill here.

I do a lot of marine electronics and wiring redo's.

Knowing your loads, length of runs is the first step in having your system sized correctly.

I use this Free software all the time to do calculation's. It's much better than just some chart,as it gives me flexibility to change the % of voltage drop.
Remember that the TOTAL circuit must be computed. The TOTAL circuit is the Positive + the Negative run of wire to compute the length of run to inject into the software.
Boats use a Neg wire. Cars use the chassis as a Ground. That neg. distance still needs to be measured as best as you can.

[WireSizer 2.0] http://www.midcoast.com/~aft/

I'm not a fan of these terminals. While they look neat and the machining looks good, it is exposed to the elements and can have corrosion get in there.

That may be because I'm so Anal about it with working on boats where you have salt and water in the environment. :) But any corrosion is added resistance. The reason for raising the cable size is to lower the resistance.

big3-1.jpg
 
One of the biggest improvements you can do is to add a fused heavy gauge wire from the alternator to the battery or to the power distribution box.

9904L.jpg


Next biggest improvement would be to replace the OEM battery terminals with almost anything better than the tin-strip terminals. Yes, the screw-lug type can be susceptible to corrosion in certain climates. If this is a concern, you can get heavy duty replacement terminals that can be soldered on and heat shrink protected if need be.

battery.jpg


The large ground wire from the battery to the engine block can be upgraded but it is a PITA to get to.
 
I live in Cali so im not really worried about corrosion. Thanks for the replys,i just wanted to see if anyone has done it. Driller, what size fuse do you suggest i run? I have some laying around that are meant for car stereos.
 
Its ugly, but you could also use the terminal coating paint to prevent corrosion.
 
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