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  #13  
Old 07-02-2012, 10:05 PM
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Re: Apexi super voltage stabilizer 5.7

Idk, to hook this up you have to disconnect the batt. So right there you are resetting the adaptives,and that by itself makes it more responsive- for a while. However, I can see how a more constant,stable elec system can be a good thing.
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  #14  
Old 07-03-2012, 01:16 PM
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Re: Apexi super voltage stabilizer 5.7

Quote:
Originally Posted by 4.whoa View Post
Idk, to hook this up you have to disconnect the batt. So right there you are resetting the adaptives,and that by itself makes it more responsive- for a while. However, I can see how a more constant,stable elec system can be a good thing.

Nope, you do not disconnect the battery to install it. You unscrew the nut on the terminal tight donw bolts and the ground wires attach to the bolts. So many on this site, more than any other I have ever seen, just want to argue with opinions on why something should not work. The results were immediately noticable, very clearly postive across the board. If you want a more responsive engine, that is also smoother and quieter, do this. If you want a loud noisy engine that is slow and unresponsive, put on a CAI and catback, if that's what makes your dingaling feel bigger.
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  #15  
Old 07-03-2012, 01:57 PM
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Re: Apexi super voltage stabilizer 5.7

Anywhere else to order this from? Perhaps a cheaper vendor? I searched and couldn't find anyone else with it available for sale. Even the mfg page doesn't list that product. Also, the linked site seems shady.
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  #16  
Old 07-03-2012, 08:53 PM
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Re: Apexi super voltage stabilizer 5.7

Yes the site seems shady or at least really outdated.

But I think dmsfun who has been a forum member for 2.5 years has noting to gain by recommending it, so it could be good to give it a try.
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  #17  
Old 07-04-2012, 08:39 AM
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Re: Apexi super voltage stabilizer 5.7

I actually bought it from an Apexi dealer over a year ago and found it in the big pile of spare parts for my road race car, so just installed it in the Jeep. Sorry if the link was no good, as I could not find the reciept with the name of the supplier, so did a google search and that link came up as the first listing. There are other listings that might work, here is one, http://www.sfxperformance.com/parts/APE477A903.htm
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  #18  
Old 07-04-2012, 09:38 AM
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Re: Apexi super voltage stabilizer 5.7

I may be new here but I'm not new to jeeps, internal combustion engines or how they work.
I understand a quieter stereo and maybe better health for all of the electronics with a conditioned power supply but 15=20 horsepower seems a pretty big stretch to me. Hell, so deos 5hp to me.
I've wasted a couple hours trying to research this thing. Its been around for a few years now yet the only places that say it works are sites selling it. I couldnt find anything to prove to me it does anything for performance.
I feel the same about this as most add ons, If it looks cool/makes more noise/your buddy doesnt have one, you have a long diatribe about why it works, charge more than its worth and you can spread the word on the internet...you will make money.
Maybe the Jeep/Hemi combo responds differently. Strictly my oinion but, throw a capaciter in there, check/add more grounds and accomplish the same thing for less than $20 Open the box and see whats in there. I'm a cynic and until I can find more than "but dyno" proof I will spend my money known quantities or more gas.
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Old 07-04-2012, 01:27 PM
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Re: Apexi super voltage stabilizer 5.7

IF you think you can build one for 20 bucks, and get similar results, have fun trying and when it doesnt do much, don't say the Apexi is the same and doesnt do much either. I am the last one who cares about looks and nobody but me ever works or sees under the hood. Yes there is marketing hype with all aftermarket products, and previously I bought into the MAgnaflow and CAI mods, only to find they did nothing but make noise and lose low end, with poorer steetability. I sold those and went back to stock. Then added theMM CNC 85 TB and Apexi which togther alone make it run like never before, plus there is no need for a trans tune. For the first time since Ive owned it new, it shifts and responds great, still on the original fluid. It's now fast. smooth and much quieter sounding, with none of obnoxious intake and exhaust sounds to drown out the sweet Hemi.
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  #20  
Old 09-05-2012, 11:17 AM
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Re: Apexi super voltage stabilizer 5.7

I'm going to bring this back to life for a moment and say that the theory as to why this works makes sense and is worth doing from what I've learned.

@ SweetWilliam: Not to bust chops, but saying you're not new to how internal combustion engines work or new to Jeeps is kinda like saying you're not new to the concept of flight based on your experience with flying in planes before. I'm sure you know quite a bit about the basics (as many of us do) or even have moderate knowledge on the subject, but the newer Jeeps, especially the ones with MDS, are a completely different animal. That being said, I have serious doubts about a true increase in hp or torque as opposed to the perceived gains based on better response and smoothness and would agree that there is a much cheaper solution to achieve very similar results.

Newer cars are using a "drive by wire" system more commonly where wires and electrical signals replace cables. Some MDS systems, in particular the 5.7 Hemi, use an electronically controlled throttle body along with a bunch of other things that depend on an electronic signal to function. It is no secret that most of these newer cars with "drive by wire" are not as well grounded as they should be and tend to have throttle response issues. I'm sure auto makers choose not to "fix" the issue because of the cost to put more wires in to better ground the system and it helps keep the engine bays neat and tidy.

When it comes to electronics, distance equals resistance and so does the amount of current when compared to the size wires being used. For anyone who's had a decent stereo system setup with an amp and a sub or two, you should know why the wires (especially the ground) are so big. Ideally you want as big and as short of a wire as you can use to help resistance issues. When it come's to a modern engine, that's easier said than done. Imagine water going through a hose, not matter how hard you try, you can only get so much out at one time with breaking anything.

Solution? Add more grounds to help provide more paths for the current to travel and ease the electrical congestion allowing for the signals to move more quickly and efficiently. Apexi has done this for you at a great cost and like others on here have said, it's kinda like a capacitor for an amplifier. Along that same line, it's pointless to hook up a capacitor to your stock stereo, there is no need as the demands aren't great enough. Keeping with this thought process, adding more grounds will help because it's "lacking" grounds to begin with. I saw this brought up on jeepforum back in april and did my research on it and you could totally do one yourself. But if you're kinda lazyish like me, you'll look into something pre-made, but MUCH cheaper than Apexi:

http://www.andysautosport.com/jeep/2...i00000296.html
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  #21  
Old 09-06-2012, 06:48 AM
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Re: Apexi super voltage stabilizer 5.7

I realize after reading my post again that I wasn't as clear as I intended on being. The point I was trying to make was that I wouldn't expect to gain HP from the kit, but that it should/will improve how the vehicle performs because the electrical system is running more efficiently and isn't being slowed down or restricted as much. You could easily do this yourself by getting larger ground wires and running them to the same points and it would be cheaper than buying a pre-made kit. I apologize to any and all that was offended by/misunderstood my previous post.
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  #22  
Old 09-07-2012, 12:40 PM
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Re: Apexi super voltage stabilizer 5.7

It has been Dyno tested many times, and there is an incrase in HP and torque throughout all RPM that can be felt. Other mods generally shift the power curve so any gains are at higher RPM, and low RPM losses are seen. The added benefit to the added power is how much smoother and quieter the engine is at all speeds. If you have not tried it, it really makes no sense to attempt to theorize what it does or does not do.
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  #23  
Old 09-07-2012, 06:51 PM
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Re: Apexi super voltage stabilizer 5.7

Just get dual batteries and upgrade your grounds and you will be set for life . The one thing that stopped me getting this kit was the led that stays on. I need to leave my car for months at a time and every once of battery power counts lol. Right now I am pushing 2400 amps
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  #24  
Old 09-07-2012, 08:48 PM
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Re: Apexi super voltage stabilizer 5.7

I will preface this with saying it is my opinion. I will also say that I did a bunch of searching around for info because I was bored and intrigued. So it is a researched opinion, not just pulling it out of my azz. lol

Quote:
Originally Posted by dmsfun View Post
It has been Dyno tested many times, and there is an incrase in HP and torque throughout all RPM that can be felt.
All the searching I did came up with zero 3rd party before and after dyno sheets. I did however find a bunch of negative reviews. If you can show me credible info I apologize, but for now I am tired of seeing you push this thing every chance you get.


Quote:
Originally Posted by dmsfun View Post
If you have not tried it, it really makes no sense to attempt to theorize what it does or does not do.
Thats a ridiculous statement. Its not a magic trick. Spending $249 or whatever it costs and running it will make all the answers appear on your "butt dyno"? (I know you found it in a box of parts or something so we should believe you because it was almost free.) Thats BS just like the sales pitch for this shiny little box with an LED or two in it and some wires. Better grounding surely cant hurt with all the electronics and that can easily be done with a few bucks in wire and connectors.
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