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Subject: "FS: Active Voltage Clamp FCDs - Not Passive Devices!"

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VelocitaPaola	Nov-29-06 09:03 PM
Member since Jun 13th 2005 626 posts,

#99784, "FS: Active Voltage Clamp FCDs - Not Passive Devices!"
Oct-20-06 05:09 AM by VelocitaPaola

Active Voltage Clamp FCDs
-Located in Boston, MA-

These are active voltage clamp FCDs, not passive resistor/potentiometer/transistor voltage regulators. While both devices achieve a similar result, the passive devices do so by essentially creating a crude linear voltage regulator. The disadvantage to these types of FCDs is that they usually create at least a 0.6V voltage drop throughout the entire MAP sensor output range. While it doesn't seem significant, the lowered voltage actually inhibits your stock ECU from making accurate A/F ratio measurements and adjustments.

These FCDs for sale use a more complex circuit to provide the following features:

Sharp Clamping Behavior Rather than adding resistance to the entire
MAP output range, these FCDs will only clamp down the output voltage down at a
user specified maximum level.
Noise Suppresion The circuits have a built in filter, essentially consisting of a
comparator loop, which removes unwanted noise. They also feature protection from the voltage spikes
that are characteristic of a car's electrical system.
Sturdy Construction These FCDs are built on printed circuit boards layed out specifically
for this application. You can opt to buy a case which will allow you to easily mount the unit
in virtually any of the cooler areas of your engine bay. The units with cases are also water/chemical
resistant.

FCD PCBs just after etching.

The last thing you want is to worry about fuel cut while you're cruising down the street. With these FCDs,
I promise you that won't happen. Each FCD comes with comprehensive instructions, plus I offer full
support for my product online.

Each FCD is shipped as promptly as possible. I currently have fourteen (14) FCDs available,
with eight (8) cases. I welcome inquiries about bulk sales.

Each FCD is pre-tuned on the bench, although I recommend that you fine-tune
the unit once it's installed.

I fully stand by my product. Although it hasn't happen yet, should one of my FCDs cease to function,
or arrive to you DOA, I'll work with you to either refund your money or repair/replace the unit.

FCDs with and without cases.

Prices

FCD Each bare, yet completely functional FCD unit is $39.99.

Cases If you would like to purchase a case, please include an additional $4.99.
Shipping Please include $3.99 for shipping from MA, 02467.

PayPal is my payment method of choice. Please contact me at symansky@bc.edu, or through PM, to set up a
PayPal transaction if you're interested in purchasing an FCD from me.

These FCDs are comparable to the units HKS sells for more than $120. I urge you not to skimp on this
crucial component of your turbosystem if you seek reliability.