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AJK, Please go to the first post and you will see the two schematics. Please let me know if I can be of any more assistance. Thanks, Jay

AJK, Yes, my fault, I will get the necessary information posted within the next few hours. Thanks, Jay

Hi Junior, Thanks for the feedback. I would of left the aircore motors alone and made a bullet-proof driver/buffer stage to drive them so nothing will fail. Do you know if the redesigned gauges have the same dynamics (response time)? I wish that the gauges were serviceable however most...

Future improved gauge protection AND thanks from Jay Gentlemen: Thank you for the kind feedback as I strive for perfection in everything I build. For those that missed out, I will be building 15 more units and expect shipments by next Monday (3-30-2015). After further thinking about the...

06fordgt, Please disregard my first email that I had sent you. Your order is being shipped right now! Thanks, Jay

sr71, In the case of a severe overload, the protection fuse would blow, however the connection to the gauges will still be made, in other words they will still be functional. This was choice that had to be made. It is possible to reverse the fuse adapter (flip it around) and use a lower amp...

GTMikey, Go to the beginning of this post for instructions on sending money: http://www.fordgtforum.com/forums/showthread.php/30543-Possible-gauge-protection-solution-CUSTOMER-LIST Thanks, Jay

UPDATE 3-31-2015: I have shipped all outstanding orders today. This includes persons that ordered the gauge protection device at the same time. Thanks, Jay UPDATE 3-17-2015: Instructions for installing this are outlined at the bottom of this posting. UPDATE 3-16-2015: I am getting ready to...

B. West, Go ahead send money along with your shipping address as PayPal sometimes omits this. Thanks, Jay

Possible gauge protection solution, installation guide UPDATE 3-30-2015: I now have a schematic at the bottom of this posting. There is an alternative method of configuring the installation. The alternate method involves changing both fuses to the new values shown on the schematic. The idea...

First polished sample UPDATED 3-6-2015: Gentlemen: Here are the parts that were deburred in a vibratory bowl for about 20 hours. The shop would only permit their machine to run during working hours so it took three days to get things to this point. The washers no longer have sharp edges and...

Updated part number on Item #2 Gentlemen: Here is the parts list for the coil cover fasteners. These parts need to be polished! I will sell a set (4 pieces) of polished fasteners for $30 plus shipping. Later I will get the correct torque value for the fasteners since the sealing washer is a...

Parts list for this project Gentlemen: Here is the parts list for this project: To those that wish to build there own, make sure that you get the polarity of the diode correct! I will post more info later this week on the correct fuse location. If you prefer to purchase something that is...

cobra, Exactly, I couldn't of said it any better... Also, a long time ago one of our forum members (Richardhead, I think) was concerned about those air motor coils picking up stray magnetic fields also. Thanks for the info, Jay

FRC, Those were a one time custom run organized by one of our forum members (sorry, can't remember the name). It may be possible that a member had purchased a set and never installed them. Good luck, Jay

Marc, okay, thanks! Jay

Here is a schematic of this simple gauge protection device:

texas, Yes, I agree with your observations. I must get technical for a moment in order to explain why there could be other things going on inside these gauges. Without knowing what's inside of these gauges, I would think that they have a simple microcontroller, which is a programmable...

FBA, The protection diode is a "Transient Voltage Suppressor" (TVS). This particular device is rated for 240 amps and/or 5,000 watts peak clamping capability. The device that I selected will clamp very close to our car's normal operating voltage, in other words I want to stomp on any voltage...

jc, I may consider building a small run of maybe 10 to 20 units. Later in this post I will have a parts list for the DIY persons. More later, Jay