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using diodes to step up voltage


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Wish non contributing members could not see this. I feel like this could be dangerous if in the wrong hands, so I'll say this again, attempt this AT YOUR OWN RISK.

Stop worrying about it man you already warned people like 20 times. ;)

If people are too stupid to listen and wind up starting their car greeted with 18v they were warned. :pardon:

If at first you do not succeed, you are doing it wrong! -ARS
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yes that can work. wut pot did you get because the lower pot like a 10k will have a fast increase as you turn resulting in a spike at a certain point. if you use lets say a 50k you will be able to fine tune it better and not have such a big spike.

Did you figure this out for the hondas??

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I would love to do this to my tacoma and I think I will. The main thing I am unsure of is how do you determine which wire is the sense wire? I don't even know what the harness looks like on my alt right now because I haven't taken a look at it, as far as I know there could be 4 wires on it

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IF YOU DONT HAVE ANY IDEA OR ANY MECHANICAL SENSE WITH WORKING ON VEHICLES PLEASE DO NOT TRY THIS. TRY AT YOUR OWN RISK NONE OF US ARE HELD RESPONSIBLE FOR YOUR ACTIONS

spl kid: yes im gonna do it lol i just gotta wait for some damn weather to work in. we had a bad snow storm then its been raining a lot so i havent been able to tear into it yet. im gonna go pick up my diodes and i have a few pots from volt modding videocards lol

also ill link you all to some of the reading i was doing before this thread was posted

good read here and at the bottom he made his own http://www.amsterdamhouseboats.nl/voltage_regulator.htm

edit: FOR HONDA'S AND ACURA'S ONLY

White/Blue Wire = 'L' wire. I assume this means LIGHT, because it is the warning light in the other diagrams. Seems to connect to the Black/Yellow, my guess is it checks the voltage on that wire, and if it is too high/low it will trip the 'warning light'

White/Green = "S" wire. Goes to underhood relay box, FUSE 8 (10A), according to the manual, fuse 8 is the voltage regulator.

Black/Yellow = "IG" wire. goes to ignition switch, coil, condenser etc,

White/Red = "FR" wire. Goes to ECU, dunno what it does there other than the previously mentioned confusing ACGF.

the "S" aka sense wire is the wire that needs the diodes added in to trick it.

sense wires OBD2 = WHITE/GREEN OBD1 = WHITE/YELLOW

it can be done on either hondas or acuras with the color wire shown.

heres another one for you honda/acura guys

"S" is the sense line. This helps the voltage regulator inside the alt. maintain the proper voltage. The idea is to sense the actual voltage from a more remote part of the power system. This could be connected to any positive voltage source really. The battery + terminal or the main lug on the starter would be a good choice.

so we add the diodes to that sense wire it will trick it and it will raise the voltage for us.

i will be doing testing with my car maybe tomorrow if the weather permits

edit 2: also if you are capable of doing this mod all you have to do is look up your alternator wiring spec sheet and find out which one is the sense wire

2015 silverado crew cab

nothing atm but soon...

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I am pretty positive of doing this mod lol. I just don't know where to look to find the spec sheet for my truck. Can anyone suggest a good place to look? And is there not a way to test with a DMM to determine which wire is the one? I know there are four wires going to my alt

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from looking at all the diagrams it looks like the white wire is your sense wire for your alt. DO AT YOUR OWN RISK. i am not responsible for anything that you do to your vehicle. just trying to help out if people understand the chance there taking. it could be good results or could mess something up. i will be going today to get my diodes and maybe ill have it in also. gonna try and make an adjustable one to see how it works. ill report back later with my results

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2015 silverado crew cab

nothing atm but soon...

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