thinking about getting a voltage stabilizer does any one have one on there rx7 and does it work, do you notice any diference in performance? thanks

 

do you mean one of the ebay adds horsepower voltage stabilizers??? they're junk.

 

What exactly are you trying to describe?

Voltage regulation to the fuel pump is good.
Voltage regulation to the coils is even good.

Anything else is a waste of money.
Scam.


-Ted

 

http://www.apexi-usa.com/product_ele...=224&pageNum=1

I doubt apexi would make junk.

 

Maybe not junk, but companies will make anything that can make them money, so it might not be junk, but that doesn't mean it's useful.

 

It's not junk, but it's of dubious value. I'm willing to bet that if the box is taken apart, all that's inside are a few high ESR capacitors, a reverse biased diode, maybe an R/C filter and a few MOVs.

Doesn't Apex'I also offer a grounding kit? That's another product of dubious value as well.

 

I read your webpage on grounding Cake, theres some useful info in there man good job with your site.

 

speaking from personal experience... it doesnt do **** on a normal car drawing normal amounts of power but if you put in stero equipment that draws alot add one

 

Capacitors and diodes I understand, R/C filter and MOVs I don't. But I do understand the principle you're getting at and how companies market them. Capacitor to store/stabilize the current, diode to keep the flow from reversing direction(??)....blowing fuses and frying things. Not sure what the R/C part stands for but filter would simply clean up the signal/charge.(??). Sounds like something you could easily get a DIY electronics kit for and save 2/3 of the cost off a name brand. Given the amount of stink capacitors make in car stereo circles, I can guess that the arguements are similar for voltage stabilizers.

I don't have the same experience as the gurus like Aaron Cake. A grounding kit seems kinda worthless so long as you have properly run power and ground cable. Or maybe worthless isn't the right term. But to my knowledge all a grounding kit does is centralize your grounds onto 1 bar or circular piece that is then grounded to the chassis or battery. Sure you get pretty precut cable with ring terminals and another name brand under your hood. But it's not hard to cut cable, solder and shrink wrap some terminals and bolt them down to the proper places. HKS grounding kit lists for like $130, for something you can make for $30-40...maybe not even that much.

 

I had the nice jdm pilot kit and some how it had a big parasitic load and killed my battery P.O.S. dont get the one that connects to positive battery cable.

 

MOV is a metal oxide varistor and it is used to suppress voltage surges. RC filter is a resistance-capacitance circuit used to filter frequencies.

 

Thanks for the heads-up

 

Yep, what he said. A R/C filter is a resistor/capacitor filter designed to chop out certain frequencies. A reverse biased diode absorbs reverse voltage spikes (burning them up as heat). MOVs work in a similar fashion but will conduct in either direction momentarily. High ESR capacitors help smooth the general flow, but there is a HUGE capacitor already in the circuit. It's called the battery.

Few of these issues should exist on the electrical system anyway. If there is a huge ripple, the alternator is bad. If there are big spikes, the coils may be leaking. These filters are just a band aid for other problems.