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| | | | Joined: Feb 2019 Posts: 4,486 AD Addict & Tinkerer | | AD Addict & Tinkerer Joined: Feb 2019 Posts: 4,486 | I’m in the process of rewiring my ‘52 Chevy and currently have a 14 gauge fusible link protecting a 10 Gauge wire going to a new fuse block. I would like to replace that with a magnum (or Maxi) fuse and need advice on how you size it.
Currently I have a 235 with HEI distributor (supplied by a relay), relays for my headlightsand horns, and have plans on installing a radio and AC in the future. No cooling fans or high output stereo.
I was thinking either 40 or 60 amp fuse.
What do you think?
Phil Moderator, The Engine Shop, Interiors and Project Journals1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc BrakesProject JournalsStovebolt Gallery Forum | | | | | Joined: Feb 2004 Posts: 29,825 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,825 | Will the fuse be carrying the output of the alternator? If so, you need to factor in the surge current immediately after starting the engine. If not, the 60 amp fuse will carry all the other circuits and still protect the wiring harness in case of a bad short.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: May 2015 Posts: 11,084 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,084 | Phil, you could start with the smaller rating fuse and creep up in ratings if it blows under normal circumstances.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | |
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