honestly, you should really read up on this subject or have a shop do it because it really doesnt seem like you know what youre doing and you could seriously damage things or possibly not even make the most of that HO altI am going to be upgrading to a high output alternator and was wondering if I had to upgrade the fuse betweent the battery and alternator. It is a 120amp fuse right now. I am also doing the big 3 upgrade and wanted to know if i had to add a fuse the the new wire that will match the new alternator. Thanks...Mike
There shouldn't be any effect on the ECM, because the regulator regulates the voltage level.... Now my question is the new HO come with there own regulator right? How does this affect the factory ECU? Is there any issue?
That's always an option, but it has nothing to do with the OP's central question (whether fuses / fusible links need to be upgraded).What about the GM alternator swap?
I am going to be upgrading to a high output alternator and was wondering if I had to upgrade the fuse betweent the battery and alternator. It is a 120amp fuse right now. I am also doing the big 3 upgrade and wanted to know if i had to add a fuse the the new wire that will match the new alternator. Thanks...Mike
I havnt got the alternator yet, still looking and deciding what i am going to do. Considering getting the gm alt, but i know you have to do a small adjustment or something to get it to fit.I recommend using zero ga wire. Cimped + soldered and then heat shrunk.
Find the current rating of whatever wire you end up using, and use a fuse rated slightly less.
Make sure you fuse it as soon as the new alt goes in, its a guaranteed fire if the wire ever shorts out.
Which alt did you end up getting? I plan on doing the cs144 gm alt. It seems like an easy swap for a decent price. All the toyota specific alternators seemed too expenive and the housings are somewhat small.
