Posted November 9, 20186 yr Hello, I heard that Mazda 3s computer systems cannot handle new HO alt's, so that being said I wanted to just fabricate a new bracket for a secondary alt instead, but there is no possible room to put another alt. so I was thinking of just getting more batteries instead, is that a good choice? or should I investigate and try to get a new alt anyway. Right now I'm currently running 1800 rms with stock alt big 3 all 1/0 100% OFC and XS power XP750 and getting pretty bad voltage drop, I'm going as low as the upper 11s . and my amp gets a little hot (i think that's why). I plan to upgrade to 3500 rms, so that's why i want a new alt. HELP! thanks!
November 9, 20186 yr Admin As long as the alternator runs at 14.4v, I am not sure why there might be an issue. But some cars are touchy, I didn't have any issues with my Mazda Protege5 alt wise. An upgraded starting battery, BIG3, and a secondary battery is always a good practice for upgrading the stereo. So you look like you are off to a great start. Did you upgrade your starting battery? Do you have room for more XP750's?
November 9, 20186 yr Author I don't have a stock starter battery although it is better, I can't say by how much. Also as far as my plan goes, I don't think I will have room for more xp750s. but at the moment its really tight already. I did just find a 250 amp HO alt for my Mazda, would that be enough along with the xp750, for 3500wrms? and what starter battery would you recommend. also, I do want room for improvement in the future. Thanks for the help!!
November 9, 20186 yr Admin I can check if we have one for SSA, alt wise. 250amp will help for sure. 2004 Mazda 3 correct?
November 12, 20186 yr Admin On 11/9/2018 at 5:23 PM, RT32 said: yes, that's correct! 2004 Mazda 3 Hatchback 2.3L W/O turbo Ok, let me check.
November 15, 20186 yr Admin 18 hours ago, RT32 said: That's ok, thanks for the help! It's a shame as I drive an RX8.
November 16, 20186 yr Author 9 hours ago, Aaron Clinton said: It's a shame as I drive an RX8. oh man, they're leaving out us Mazda guys!
November 16, 20186 yr Admin 12 hours ago, RT32 said: oh man, they're leaving out us Mazda guys! Agreed. I used to have a 2004 Protege5 manual. Loved that little car.
November 18, 20186 yr Author On 11/16/2018 at 8:19 AM, Aaron Clinton said: Agreed. I used to have a 2004 Protege5 manual. Loved that little car. oh yeah, they are a blast to drive!
November 19, 20186 yr Admin 14 hours ago, RT32 said: oh yeah, they are a blast to drive! Was a great car for me. I did a lot of work on it and tracked it a few times.
November 28, 20186 yr Author On 11/19/2018 at 9:39 AM, Aaron Clinton said: Was a great car for me. I did a lot of work on it and tracked it a few times. That sounds like fun, I would love to track my Mazda but I wouldn't want to damage anything by mistake lol. I want to get like, a dirt cheap Miata and track that, or an old Volvo and drift it lol.
November 29, 20186 yr Admin 2 hours ago, RT32 said: That sounds like fun, I would love to track my Mazda but I wouldn't want to damage anything by mistake lol. I want to get like, a dirt cheap Miata and track that, or an old Volvo and drift it lol. Oh yeah, an old 240.
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