BenzWorld Junior Member
Date registered: Jan 2006
Vehicle: 1996 W210 E320 ELEGANCE, 1972 W108 280SE 3.5, 1969 W108 280S, 1971 300SEL 3.5
Location: Melbourne, Australia
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If you run everything through relays you should be good, esp since you are thinking of running an Optima Red Top.
For shear cranking power the 1000CCA version is the one to go for, but for practical reasons the version with the side and top mounts means you can add more directly to the battery without crowding the main terminals.
Try retrofitting an alternator from a later V8 car, like a W108 4.5 or W116 V8, they all ran Bosch alternators and I think they are rated at 55 Amps, but also look out for Fords with A/C and V8's as they ran Bosch alternators (well in Australia they did, don't know about the States) and they were rated at 85 to 105 amps, the higher outputs would in the Police Pack Specials.
I could go on but I think you get the gist of what I'm saying.