Anyone know what these things do???
http://cgi.ebay.com/ebaymotors/ws/eBayI ... Track=true
How does this thing help??
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MGVWfan
- Posts: 825
- Joined: Fri Jun 11, 2004 9:23 pm
Speaking as a graduate of a fine Electrical Engineering school, it looks like snake oil to me.
Lane
73 VW 412 (the Nomad, dropped valve seat land now, argh!)
67 MGB (Abingdon's Finest)
76 Plymouth Duster /6 (runs like a top)
99 New Beetle 2.0 (never gives any trouble)
04 Golf TDI (45 MPG)
09 JSW (love it, love it, love it!)
73 VW 412 (the Nomad, dropped valve seat land now, argh!)
67 MGB (Abingdon's Finest)
76 Plymouth Duster /6 (runs like a top)
99 New Beetle 2.0 (never gives any trouble)
04 Golf TDI (45 MPG)
09 JSW (love it, love it, love it!)
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raygreenwood
- Posts: 11912
- Joined: Wed Jan 22, 2003 12:01 am
Actually it works...but not for all that sh*t thats advertized. It is simply a voltage stabilizer. They originally started getting common/popular for people running huge stereo systems. It is like a stepping transformer with a smart chip. It steps up the voltage output at idle to a preset minimum. It just maintains it when you drive. It will not give you brighter headlights....but it will keep them from dimming on a car with a punt alternator....when you step on the gas.
The difference in stereo system stabilizers these days, is that they also use ver large caoaciters to give the extra current boost when ...say....a bass peak on your subwoofer amp...exceeds available power. They use those in conjunction with a standard voltage stabilkizer to make sure that a constant stream of current at a set level comes in.
Just get a simple one. I recommend having to feed both your injection system and your fuel pump. It makes a difference.
But...even if that one is a good product.....Idon't buy things from people who hype their stuff that hard. Chances are it also suffers from poor construction...even if it works. Ray
The difference in stereo system stabilizers these days, is that they also use ver large caoaciters to give the extra current boost when ...say....a bass peak on your subwoofer amp...exceeds available power. They use those in conjunction with a standard voltage stabilkizer to make sure that a constant stream of current at a set level comes in.
Just get a simple one. I recommend having to feed both your injection system and your fuel pump. It makes a difference.
But...even if that one is a good product.....Idon't buy things from people who hype their stuff that hard. Chances are it also suffers from poor construction...even if it works. Ray
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albert
- Posts: 834
- Joined: Mon Mar 22, 2004 2:08 pm
this thing help
hi, look on the cover , it is in japonise linguage ,or chinise , that is the sheet , ok excep the jock , it is good only if you have 500 watts radio ,,,,,,
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MGVWfan
- Posts: 825
- Joined: Fri Jun 11, 2004 9:23 pm
Well...it's a two-terminal device, so all it can be is a large capacitor. It stores electrons and releases them when the system voltage drops...kinda like a battery! Ray's point is that hyper stereo folks use them to lower the impedance of the electrical system, thus allowing better low-frequency transient response. It can help for systems pulling massive transient currents, but in reality, a big assed battery does that job better, IMHO. Yeah, the capacitor is usually smaller in volume for a given impedance, but it can only smooth the transients out, and can't really supply much energy...a battery can!
That thing can't help any EFI or ignition system fed by a good battery, with correctly-sized cables with tight, clean connections. The alternator does produce some ripple on the DC output, but with a typical battery and connecting cables, the AC impedance is low enough to keep the ripple to a very low level. The feed impedance designed into the T4 electrical system is low enough to support the EFI system without problems, IF you keep the connections clean and tight, and replace the battery when it needs replacing (don't wait until the lights dim when you turn on the Eber, indicating a cell with a high internal resistance!).
Save your money, clean the grounds, clean your battery posts, and protect your EFI system by disconnecting the battery when you use a charger.
I'm also planning on adding a transient protector to the power feed for my EFI system, just because 23 years of comm system engineering has left me paranoid about spikes and transients
. Good, tight connections and a good battery will keep you just as safe.
I've got a few Farad of "C" kicking around the shop, maybe I'll hook them up to the MG and see what the ole scope says someday
That thing can't help any EFI or ignition system fed by a good battery, with correctly-sized cables with tight, clean connections. The alternator does produce some ripple on the DC output, but with a typical battery and connecting cables, the AC impedance is low enough to keep the ripple to a very low level. The feed impedance designed into the T4 electrical system is low enough to support the EFI system without problems, IF you keep the connections clean and tight, and replace the battery when it needs replacing (don't wait until the lights dim when you turn on the Eber, indicating a cell with a high internal resistance!).
Save your money, clean the grounds, clean your battery posts, and protect your EFI system by disconnecting the battery when you use a charger.
I'm also planning on adding a transient protector to the power feed for my EFI system, just because 23 years of comm system engineering has left me paranoid about spikes and transients
. Good, tight connections and a good battery will keep you just as safe.I've got a few Farad of "C" kicking around the shop, maybe I'll hook them up to the MG and see what the ole scope says someday
Lane
73 VW 412 (the Nomad, dropped valve seat land now, argh!)
67 MGB (Abingdon's Finest)
76 Plymouth Duster /6 (runs like a top)
99 New Beetle 2.0 (never gives any trouble)
04 Golf TDI (45 MPG)
09 JSW (love it, love it, love it!)
73 VW 412 (the Nomad, dropped valve seat land now, argh!)
67 MGB (Abingdon's Finest)
76 Plymouth Duster /6 (runs like a top)
99 New Beetle 2.0 (never gives any trouble)
04 Golf TDI (45 MPG)
09 JSW (love it, love it, love it!)
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albert
- Posts: 834
- Joined: Mon Mar 22, 2004 2:08 pm
this thing help
yes MG your point is correct , with good batery ,good connection , that gadget is not necessaire , but if you have good batery , and if you like good quality for music , go to by , lamp aplifier for car, to day he have cie , restart to built radio or amplifier with the old systheme (lamp ) 12 lamps , but if you have (very good job) the price is appx 3k at 5k $ nice dollards , but with that you have concert hall in your car , at only 50 watts by chanel ,,, 
albert
albert