DIY VOLT STABLILZER

[Cwx7978589]

Btw, one may wonder why car manufacturers don't use or add VS to the car even though its great device.

 

Well, one have to think about reliability and cost. Electrolytic capacitors are not exactly reliable devices (when it comes to high temp conditions) and they do not have very long life span.

 

They degrade over time and with temp. Electrolyte also evaporate over time (even though they are rightly sealed).

 

I do recall condensers used in old cars back then using breaker point ignition systems. But now solid state breakerless systems no longer need it.

 

Typical E-Caps are rated at 85-105C for around 2000 hours. Thats not very long if if you consider the fact that cars can last well over 10yrs and engine bays easily get 60-70C and get -20-30C in cold weather (during winter). So do you want to risk having devices that could compromise reliability of the car? Also have to drive thru standing water, light floods etc.

 

Of course, we don't really need to bother about winter in SG or blown capacitors since we can change it easily. But would you want a car that have to change capacitors every few years?

 

Hi. bro, you are specializer about the VS and electronics .

i used top brand capacitor (nipoon chemi con)and Endurance with ripple current : 2,000 to 8,000 hours at 105C (this mean the capacitor work enviroment alway at 105C)

anybody interested can check http://www.chemi-con.co.jp/e/catalog/pdf/a...xy-e-100701.pdf

so if the engine bays around the 60-70c, the capacitor life span should more than 10000 hours

meanwhile i used Good quality waterproof ABS casing that doesn't allow heat going in (Unlike aluminum/alloy casing which is heat conductor) and used transparent cover easy to check VS condition (unlike other VS, not easy to know what components it used)

 

btw, why the VS have inscrutable performance, the key point is capacitor ,the capacitor charging and discharging speed very fast so it can fill in gaps in voltage drop quickly

and as you said Bigger values take care of lower frequencies while smaller ones take care of higher frequencies. (this for ICE)

another one is the smaller value charging and discharging speed fast than bigger one , but smaller cannot keep .so need difft value capacitors ,the curve graph like stairway(i am a engineer work in muRata---a capacitor manufacturer)

 

 

 

[Mona-vie]

I don't specialise in electronics lar. I just have some knowledge only. Thats why I believe in VS and they are not snake oil stuff. I also believe in grounding. I did experiments myself and verify the results myself.

 

From what I can seen from the pics, you are really doing a good job in making the VS. Its real stuff, not bs snake oil. If people don't believe in your product, its their loss. But they ought to be more knowledgeable before making negative comments. What capacitors are for, how they cut down voltage ripples (hence noise) etc......

 

As I have mentioned earlier, issue with electrolytic capacitors is that its life span is not that long. Their capacitance degrade over time and more sensitive to temp compared to some caps (tantalum caps). However, for it to last 3yrs is not an issue and for the price you are charging, no one can complain.

 

For those who have the knowledge, they can go ahead and DIY to save $$$. If not, they should just get from you (don't need for those Pivot, Inazma or other brands stuff, its all caps).

[Fuelsaver]

Its actually very very normal for ICE to improve after installing voltage stabiliser.

 

This is because the voltage produced from voltage regulator from the alternator actually fluctuates with RPM and AC/DC conversion itself + noise from engine etc.

 

There are some websites that claimed the battery is actually a large capacitor and will act as a VS. However, this is not the case. The batt can only do so for certain frequencies of voltage fluctuations (mainly lower frequencies). High frequencies cannot be smooth out by the battery. Thats why VS is needed.

 

Thats all why you need many capacitors of different sizes in VS. Bigger values take care of lower frequencies while smaller ones take care of higher frequencies.

 

As for why improvement in power can improve ICE performance, I leave it to the audiophiles to explain.

 

 

Why clean power is important? Everything you have in your car depends on it. Your throttle sensor depends on voltage changes (to determine throttle position), your O2 sensor depends on voltage readings to determine amt of O2. Your Air flow sensor (or hot film sensor), your MAP sensor.

 

In case you are wondering how a VS can improve ignition. Its simple, when the ignition coil fires, there is always a detectable voltage drop (if you have an oscilloscope you can see it). A VS will reduce this drop hence improving the ignition performance.

 

If you really want to experiment, just get ignitor + coil + spark plug + 12V battery to experiment how putting a capacitor in parallel to the 12V batt can actually cause the spark to become stronger. I have play with it before thus I know the benefits.

 

If you really need more spark performance, you can opt for CDI then you can increase your spark gap by a huge amount. But its not really needed for NA or lightly boosted cars.

wat is CDI? me noob in all these.

 

btw, does "spark earth" help in spark plug performance? recently removed it due to customized groundin n VS installn; too many cables liao...

 

thx for info.

[Fuelsaver]

Hi. bro, you are specializer about the VS and electronics .

i used top brand capacitor (nipoon chemi con)and Endurance with ripple current : 2,000 to 8,000 hours at 105C (this mean the capacitor work enviroment alway at 105C)

anybody interested can check http://www.chemi-con.co.jp/e/catalog/pdf/a...xy-e-100701.pdf

so if the engine bays around the 60-70c, the capacitor life span should more than 10000 hours

meanwhile i used Good quality waterproof ABS casing that doesn't allow heat going in (Unlike aluminum/alloy casing which is heat conductor) and used transparent cover easy to check VS condition (unlike other VS, not easy to know what components it used)

 

btw, why the VS have inscrutable performance, the key point is capacitor ,the capacitor charging and discharging speed very fast so it can fill in gaps in voltage drop quickly

and as you said Bigger values take care of lower frequencies while smaller ones take care of higher frequencies. (this for ICE)

another one is the smaller value charging and discharging speed fast than bigger one , but smaller cannot keep .so need difft value capacitors ,the curve graph like stairway(i am a engineer work in muRata---a capacitor manufacturer)

bro, one advice for u - prepare some cable ties (for tying ur VS cable if excess length; use degreaser (for 3M tape to stick onto batt / other location in engine bay when install VS). mayb also try to study diff install location for dif makes of cars if possible.

 

cheers for ur quality n reasonably priced VS.

[Mona-vie]

wat is CDI? me noob in all these.

 

btw, does "spark earth" help in spark plug performance? recently removed it due to customized groundin n VS installn; too many cables liao...

 

thx for info.

 

CDI is capactive discharge ignition. Its basically to use capacitors to store the charge, then up the output voltage to around 500V (stock is 12V) before transferring to the coil.

 

Its rather expensive and you need CDI coils to get the most out of it (most of our cars use inductive coils). But the spark produced is really powerful and you can run very high boost for your car or use a much bigger spark gap.

 

But CDI is not w/o its downside, it has a shorter spark duration compared to inductive coils.

[Moredhel]

I don't specialise in electronics lar. I just have some knowledge only. Thats why I believe in VS and they are not snake oil stuff. I also believe in grounding. I did experiments myself and verify the results myself.

 

From what I can seen from the pics, you are really doing a good job in making the VS. Its real stuff, not bs snake oil. If people don't believe in your product, its their loss. But they ought to be more knowledgeable before making negative comments. What capacitors are for, how they cut down voltage ripples (hence noise) etc......

 

As I have mentioned earlier, issue with electrolytic capacitors is that its life span is not that long. Their capacitance degrade over time and more sensitive to temp compared to some caps (tantalum caps). However, for it to last 3yrs is not an issue and for the price you are charging, no one can complain.

 

For those who have the knowledge, they can go ahead and DIY to save $$$. If not, they should just get from you (don't need for those Pivot, Inazma or other brands stuff, its all caps).

 

Believe you should be referring to me.

 

 

Anyway, it's all fine and good when someone claims that his VS capacitors n grounding will improve ICE, electrical conductance and more efficient electronics in a car. Would be more convincing if the muRata engineer(I conincidentally use their products), can do a simple test and provide stats on load regulation, line regulation, maximum ratings, p2p rms v, and accuracy on the stats. I'm sure as an engineer he has already though out these when building the VS.

 

When someone starts claiming that his VS will improve BHP, NM, and FC that's when I'll step in and shoot his snake-oil down. Or go ahead and get 20 if his products can pass a dyno with results.

 

 

 

 

 

[Bystander50]

Btw, one may wonder why car manufacturers don't use or add VS to the car even though its great device.

 

Well, one have to think about reliability and cost. Electrolytic capacitors are not exactly reliable devices (when it comes to high temp conditions) and they do not have very long life span.

 

They degrade over time and with temp. Electrolyte also evaporate over time (even though they are rightly sealed).

 

I do recall condensers used in old cars back then using breaker point ignition systems. But now solid state breakerless systems no longer need it.

 

Typical E-Caps are rated at 85-105C for around 2000 hours. Thats not very long if if you consider the fact that cars can last well over 10yrs and engine bays easily get 60-70C and get -20-30C in cold weather (during winter). So do you want to risk having devices that could compromise reliability of the car? Also have to drive thru standing water, light floods etc.

 

Of course, we don't really need to bother about winter in SG or blown capacitors since we can change it easily. But would you want a car that have to change capacitors every few years?

 

This is one of the reasons why I asked him about the types of capicators and country of manufacture.

Problem with those low quality or poorly manufactured caps, they tend to "pop" over time and heat.

These "popping" capicators happened even in computer motherboards or power supplies where the temperature is not even as high as that in an engine bay.

 

I've tried building a VS myself by tracing the circuits of another VS. It's a simple device, the caps are all placed in parallel.

And there's no one design that suits all cars.

 

 

[Fuelsaver]

yup, that's wat i was thinking usin my technical instinct, though i noob in these (failed my electronics last time haha..)

 

so can anyone build a variable capacitance circuit to detect car electrical variables (resistance, conductivity, voltage fluctuations) so as to optimize voltage stability???

 

cheers!

[Cwx7978589]

bro, one advice for u - prepare some cable ties (for tying ur VS cable if excess length; use degreaser (for 3M tape to stick onto batt / other location in engine bay when install VS). mayb also try to study diff install location for dif makes of cars if possible.

 

cheers for ur quality n reasonably priced VS.

 

thanks bro,thank you suggestion.i already preparaed the cable tie and clean kits

 

 

[Cwx7978589]

yup, that's wat i was thinking usin my technical instinct, though i noob in these (failed my electronics last time haha..)

 

so can anyone build a variable capacitance circuit to detect car electrical variables (resistance, conductivity, voltage fluctuations) so as to optimize voltage stability???

 

cheers!

 

hehe , as Mrs Mona-vie and Bystander50 said the VS is a simply device,but make a good VS isn't simple.

many facts need consider

[Cwx7978589]

I don't specialise in electronics lar. I just have some knowledge only. Thats why I believe in VS and they are not snake oil stuff. I also believe in grounding. I did experiments myself and verify the results myself.

 

From what I can seen from the pics, you are really doing a good job in making the VS. Its real stuff, not bs snake oil. If people don't believe in your product, its their loss. But they ought to be more knowledgeable before making negative comments. What capacitors are for, how they cut down voltage ripples (hence noise) etc......

 

As I have mentioned earlier, issue with electrolytic capacitors is that its life span is not that long. Their capacitance degrade over time and more sensitive to temp compared to some caps (tantalum caps). However, for it to last 3yrs is not an issue and for the price you are charging, no one can complain.

 

For those who have the knowledge, they can go ahead and DIY to save $$$. If not, they should just get from you (don't need for those Pivot, Inazma or other brands stuff, its all caps).

 

you are really a specialise!

[Fuelsaver]

just installed VS recently fr bro CW7978589 - noted engine starting 1-2 cranks lesser (improved CCA?), batt voltage slight up by 0.x, even slightly colder aircon (now can turn to 24.5 to 25 deg c instead of 24 after grounding), engine notes sounded smoother from idling to 5+k rpm but no increased performance, ICE bass slight improvement. i can't explain these gains but only think there's something electrically different.

 

coincidentally, it appeared there was slight improvement in FC (12.5km/l; previously suffered fr poor FC of sub 11km/l for a month after v-power & mayb also due to ICE sapping more power fr batt causing less precise / stable signal fr ECU? then reverted to slightly normal of 11.x constantly) durin today's top up, but might also be subject to fluctuations & many other external factors. unless there is constant achieving of such FC, this area's still inconclusive.

 

some can say above is rubbish but at least i'm truthful about no performance gain by installing such a product. perhaps electrically efficient translates to more precise & consistent / stable electrical signals, esp fr ECU?

FC 2nd topup after VS - 12.7km/l.

 

gauging from fuel gauge, this current tank will get less mileage (FC inc). Unless consistently getting near 13km/l, I'd say ECU performance is more stablized (READ: not improved FC), resulting in a more consistent FC.

 

see my posting of FC previously =>

 

http://www.mycarforum.com/index.php?s=&amp...t&p=3786100

 

 

 

[Ezlink55]

i myself driving a chery qq, throw in a pivot cs and really no use de, den self diy a own vs and it works very well.

[Stanchiam]

i myself driving a chery qq, throw in a pivot cs and really no use de, den self diy a own vs and it works very well.

probably the cap inside the pivot not good enough

btw, what kind of cap u use for the vs?

what diff u feel after using your own diy vs?

[Mona-vie]

probably the cap inside the pivot not good enough

btw, what kind of cap u use for the vs?

what diff u feel after using your own diy vs?

 

Pviot won't work well. Cause its just 4 capacitors. I reckon they are probably 25V ~4000uF caps (judging from the size). It will not even filter high frequency noise.

[Bystander50]

yup, that's wat i was thinking usin my technical instinct, though i noob in these (failed my electronics last time haha..)

 

so can anyone build a variable capacitance circuit to detect car electrical variables (resistance, conductivity, voltage fluctuations) so as to optimize voltage stability???

 

cheers!

 

The only way i can think of to prove the effectiveness of the VS circuitary is to use an oscilloscope to produce the before and after installation waveform.

 

But from the way I see it, the VS should be connected on series with the battery. Reason is battery output the voltage, goes through the VS that "cleans" it, then output to the car's electronics. Even if it's in parallel, shouldn't it have 4 wires? 2 input and 2 output after rectification?

 

In series,

Battery+ terminal -> VS+ teminal, VS- terminal -> car+ cable

 

In parallel,

Battery + & - terminal -> VS (input) + & - terminal respectively,

VS (output) + & - terminal -> car + & - terminal cable respectively

 

 

 

 

[Yeobh]

Since you managed to design and make a better mouse trap why not go ahead and start producing some for sales and over time you could be laughing all the way to yr bank

Edited June 17, 2011 by Yeobh

[Cwx7978589]

FC 2nd topup after VS - 12.7km/l.

 

gauging from fuel gauge, this current tank will get less mileage (FC inc). Unless consistently getting near 13km/l, I'd say ECU performance is more stablized (READ: not improved FC), resulting in a more consistent FC.

 

see my posting of FC previously =>

 

http://www.mycarforum.com/index.php?s=&amp...t&p=3786100

 

thanks bro,thank you update your feedback about FC