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EternalOne · 05-16-2008, 09:45 AM

At this point you need to do a one-by-one diag of the system.

Basically you are pulling WAY too much power for the Cougar to produce. Then on top of that, you've got a rapid charge/discharge (cap) that is pushing surges of demand through the alt, not a good thing. A dual battery will not help you, because of the massive draw you've got.

In my Yukon my two amps rate at 120amps, and I've upgraded my alt to a 250amp HO unit and dual batteries. The Cougar alt can be rewound to produce about 130-150amps, but that's about as high as you can go with it. With the car draw you're still above. My recommendation would be 4-fold...

#1 - Remove the cap, with proper power you should not need it and right now it's hurting you.
#2 - Buy a NEW alt and spend the $100 or so to get it rewound. (Don't rewind a used one, especially if you're smoking them constantly. Don't want to waste money.)
#3 - Install a second battery, Optima Yellow top recommended, or go with a SERIOUS Marine battery, such as the Interstate Marine batteries. (Note these are VERY heavy, and VERY large.)
#4 - Install an isolator. With the way you're smoking alts you need to seperate your power systems. Keep the feedback from the system off the car power system before you smoke more than your alt (ie your computer, which runs MUCH more than a replacement alt...)

Just suggestions, but once you go with a large stereo the issues and cost multiplies in a big way. This is why a lot of people go real big, and then 2 weeks later have no sound. You're in a whole new realm now...

E1

05-16-2008, 09:45 AM	#21 (permalink)
EternalOne Rolling Chassis Join Date: Nov 2002 Location: Redford, MI Posts: 4,438	Re: The race to Fest! At this point you need to do a one-by-one diag of the system. Basically you are pulling WAY too much power for the Cougar to produce. Then on top of that, you've got a rapid charge/discharge (cap) that is pushing surges of demand through the alt, not a good thing. A dual battery will not help you, because of the massive draw you've got. In my Yukon my two amps rate at 120amps, and I've upgraded my alt to a 250amp HO unit and dual batteries. The Cougar alt can be rewound to produce about 130-150amps, but that's about as high as you can go with it. With the car draw you're still above. My recommendation would be 4-fold... #1 - Remove the cap, with proper power you should not need it and right now it's hurting you. #2 - Buy a NEW alt and spend the $100 or so to get it rewound. (Don't rewind a used one, especially if you're smoking them constantly. Don't want to waste money.) #3 - Install a second battery, Optima Yellow top recommended, or go with a SERIOUS Marine battery, such as the Interstate Marine batteries. (Note these are VERY heavy, and VERY large.) #4 - Install an isolator. With the way you're smoking alts you need to seperate your power systems. Keep the feedback from the system off the car power system before you smoke more than your alt (ie your computer, which runs MUCH more than a replacement alt...) Just suggestions, but once you go with a large stereo the issues and cost multiplies in a big way. This is why a lot of people go real big, and then 2 weeks later have no sound. You're in a whole new realm now... E1 __________________ 1999 Widebody Cougar Supercharged 3L - 08 Final Assembly In Progress 1992 Eagle Talon TSi AWD Turbo - 350hp Sleeper 1992 Mitsubishi Eclipse GSX AWD Turbo - Drag Car 1999 GMC Yukon - Orion HCCA Competition Truck The perfect site for all the elbow-biters and waterheads on the Interwebs...