Shogun Stop It - does it work?

brandon684 · 05-21-2009, 12:56 PM

If anyone is interested, I saved this quite a while ago, but I'm am totally lost when it comes to doing stuff like this. They, mention the STOP-IT at the end, but don't say whether it works or not. I have the irregular light from time to time, but I chalk it up to nerves most of the time. Anyone have any opinions on it?: http://www.computechracing.com/forum...hread.php?p=38

"Suppressing Solenoid Switching Reaction to Protect and Improve Computer System Performance:
If you have a transbrake, line lock, or any other solenoid on your car that consumes a significant amount of current when energized, then you should add a BYPASS DIODE to each and every one of them. This need also includes electric fuel pumps and the like. When the current is shut off to the electric coils inside these devices, they act much like the coil on an ignition system – they try to generate a large voltage and perhaps even a spark somewhere else in your electrical system. This reaction can disrupt and sometimes even damage computer equipment on your car. It does not matter if the coil and computer are directly wired to one another. The reaction of the coil can go through the power wiring of the car and even through the air like a radio signal.

A diode rated at 3-amps with a peak reverse voltage of several hundred volts is preferred. If this package does not include bypass diodes, Radio Shack part number 276-1143 will work. This is a type 1N5402 diode rated at 3 amps average current, 200 amps peak surge current, and 200V peak reverse voltage.

The installation location and direction of the diode are extremely important. For each device being bypassed, the diode should be wired as close to the device as possible, preferably connected directly to the device terminals or within one inch of the device. The diode will have an indicator on one end. That indicator will be a painted band or a pointed end. This end of the diode must be connected to the [sometimes] hot wire of the solenoid, coil, or motor. The other end of the diode should be connected to the other end of the device, which is often chassis ground. Note: connecting the diode backward may prevent operation of the bypassed device or else invisibly damage the diode. Warning: a damaged diode later connected in the correct direction will provide no protection at all.

((Diagram ommitted from this text))

NOTE that Shogun Industries (shogunindustries.com) produces “Stop-it”, a device specifically designed for eliminating this kind of noise problem caused by the transbrake solenoid. It’s more expensive than a diode, but is claimed to do a better job as well."

05-21-2009, 12:56 PM	#10
brandon684 Junior Member Join Date: Jun 2008 Posts: 4 Likes: 0 Liked 0 Times in 0 Posts	Re: Shogun Stop It - does it work? If anyone is interested, I saved this quite a while ago, but I'm am totally lost when it comes to doing stuff like this. They, mention the STOP-IT at the end, but don't say whether it works or not. I have the irregular light from time to time, but I chalk it up to nerves most of the time. Anyone have any opinions on it?: http://www.computechracing.com/forum...hread.php?p=38 "Suppressing Solenoid Switching Reaction to Protect and Improve Computer System Performance: If you have a transbrake, line lock, or any other solenoid on your car that consumes a significant amount of current when energized, then you should add a BYPASS DIODE to each and every one of them. This need also includes electric fuel pumps and the like. When the current is shut off to the electric coils inside these devices, they act much like the coil on an ignition system – they try to generate a large voltage and perhaps even a spark somewhere else in your electrical system. This reaction can disrupt and sometimes even damage computer equipment on your car. It does not matter if the coil and computer are directly wired to one another. The reaction of the coil can go through the power wiring of the car and even through the air like a radio signal. A diode rated at 3-amps with a peak reverse voltage of several hundred volts is preferred. If this package does not include bypass diodes, Radio Shack part number 276-1143 will work. This is a type 1N5402 diode rated at 3 amps average current, 200 amps peak surge current, and 200V peak reverse voltage. The installation location and direction of the diode are extremely important. For each device being bypassed, the diode should be wired as close to the device as possible, preferably connected directly to the device terminals or within one inch of the device. The diode will have an indicator on one end. That indicator will be a painted band or a pointed end. This end of the diode must be connected to the [sometimes] hot wire of the solenoid, coil, or motor. The other end of the diode should be connected to the other end of the device, which is often chassis ground. Note: connecting the diode backward may prevent operation of the bypassed device or else invisibly damage the diode. Warning: a damaged diode later connected in the correct direction will provide no protection at all. ((Diagram ommitted from this text)) NOTE that Shogun Industries (shogunindustries.com) produces “Stop-it”, a device specifically designed for eliminating this kind of noise problem caused by the transbrake solenoid. It’s more expensive than a diode, but is claimed to do a better job as well."