Performance Unlimited

Performance Unlimited Performance Racing, Street, Off-road and Offshore high performance parts and accessories

Merry Christmas, everyone!
12/26/2025

Merry Christmas, everyone!

Coming home late from the shop on Sunday night presented a perfect reflection of a sunset on Little Cedar lake
11/24/2025

Coming home late from the shop on Sunday night presented a perfect reflection of a sunset on Little Cedar lake

10/19/2025

Late night Saturday night install of a new custom welded steel rear step bumper with an extremely Super Bright array of integral LED backup lights on this F350 Super Duty. The original rusted bumper would have cost $1800 to replace, this upgrade was less than half of that.

Late night Saturday night install of a new custom welded steel rear step bumper with an extremely Super Bright array of ...
10/19/2025

Late night Saturday night install of a new custom welded steel rear step bumper with an extremely Super Bright array of integral LED backup lights on this F350 Super Duty. The original rusted bumper would have cost $1800 to replace, this upgrade was less than half of that.

The new Ford Super Duty's trigger the alarm if the trailer plug is disconnected and sends an alert to your phone. Very n...
10/04/2025

The new Ford Super Duty's trigger the alarm if the trailer plug is disconnected and sends an alert to your phone. Very nice feature unless it triggers several times for no reason. Looking closely reveals the problem which consists of several issues. First, the lug on the trailer plug that is held in by the tab on the flip top cap is worn and angled which pushes the cap and tab away and allows the plug to walk out of the outlet socket reducing connectivity. Secondly the copper terminals in the plug are pushed apart by usage which reduces the clamping force on the terminals in the outlet socket. The first solution was to squeeze the terminals in the trailer plug together with a needle nose pliers to increase the contact to the outlet socket. The second solution was to slit an inward angle into the lug on the plug to remove some of the rubber material and then screw in a custom made 1/8" thick aluminum spacer on the back of the lug which eliminates the worn surface on the lug as well as the inward angle increases the pull into the outlet socket rather than pushing it away. The increased thickness also forces the plug deeper into the outlet socket increasing connectivity and reliability even more. Many of the aftermarket replacement repair plugs only have a single terminal in each port rather than two as in this one, so it was well worth the effort to fix and improve this one. This will work far better than even a new one.

A trailer hit an object on the Interstate at full speed launching the trailer into the air with a car on it. The impact ...
09/27/2025

A trailer hit an object on the Interstate at full speed launching the trailer into the air with a car on it. The impact drove the axle up into the frame and when it abruptly stopped, it bent the outer axle stub -3.5 degrees upward. Something like this usually requires an entirely new axle replacement, however, there is another way to fix it perfectly, for under $10 bucks, in your garage and not even having to remove the axle, or the other tires. And here's how...

08/22/2025

How I discovered that every CURT battery charger I tried (3) were faulty, was this waterproofed voltage meter I installed that reads the voltage of the breakaway battery which can be quickly and easily checked while connecting the trailer before each towing mission.

If you have a CURT #52025 charger for maintaining your trailer's Breakaway battery, you want to check that it actually ...
08/20/2025

If you have a CURT #52025 charger for maintaining your trailer's Breakaway battery, you want to check that it actually works. Very few people bother and their emergency breakaway battery slowly depletes it's power without you realizing it until it's too late. To test if it is working, place a volt meter on the breakaway battery and read the voltage, then start the tow vehicle (with the trailer's harness plugged in of course) and the voltage should increase. After obtaining three of these CURT 52025 chargers, one 10 months ago, one several weeks ago and another just recently, all three do not charge at all. While they do show voltage (.3 less than the inpit voltage) when NOT connected to the trailer's battery, once it is connected, then there is no charge from the charger, and no draw being pulled by the charger when connected. In other words it is not consuming any amperage from the source nor sending any amperage to the battery at all. It does nothing. All three of them including one sent directly to me from CURT. Since all these chargers came from over a 10 month period, one might suspect all of them made in that time frame might not work? I obtained another similar charger, a HOPKINS 20007 and it works perfectly! The circuit resistance measured on the Hopkins is only 18k ohms, where the same resistance on the CURT is huge 4.3 Meg ohms. I carefully dissected the CURT charger and and applied 13.6 volts directly to wire N1 inside with no results, then bypassed the diode and applied to N2 also with no results, then I applied it to N3 with no results. Finally I applied 13.6 volts to the "Y" wire which bypassed the diode and resistor and finally there was charge going to the trailer battery. But of course that bypasses ALL of the internal circuitry to get it to work, which means it does not work at all. The Hopkins 20007 works perfectly, and significantly smaller as well, now that you can see what in inside.

Watching the car inside the trailer is interesting to see how much it moves around, as well as the safety of seeing the ...
07/18/2025

Watching the car inside the trailer is interesting to see how much it moves around, as well as the safety of seeing the straps are still taught and have not loosened up as opposed to occasionally stopping and checking. When you have a 1,000 mile towing range between fill ups, eliminating all other necessary stops is important. We made a custom aluminum mount and bolted it to the bottom of the upper cabinet for the best stability. The super 150 degree wide angle lens views the entire inside of the trailer with Infrared night vision. The wireless display in the truck is mounted with a custom "slip-in" mount that slides right into the SuperDuty's "phone holder" slot for quick installation and removal.

Here we made a device to channel rainwater away from the rear view trailer camera. When driving in the rain, the water c...
07/16/2025

Here we made a device to channel rainwater away from the rear view trailer camera. When driving in the rain, the water collecting on the trailer roof and running off the back obscures the rear vision to almost nothing. With this device mounted on the roof, it channels rainwater to either side of the camera and keeps the camera clean and vision crystal clear. The TIG welded 6061 Aluminum is clear lacquer coated and is adhered to the roof using a high strength adhesive.

Now the tedious part. A special mix of adhesives as will as small screws hold this 3D aluminum/vinyl tread plate wrap in...
07/15/2025

Now the tedious part. A special mix of adhesives as will as small screws hold this 3D aluminum/vinyl tread plate wrap in place. You are never going to tell it's not sheet plate aluminum. It even feels like aluminum plate. The roller fairlead is held in place by a 3" long 5/16" wood screw on one side, and a 5/16" threaded bolt on the other side.

The wooden base is set onto the deck of the trailer, and the aluminum tool box is set on top of that. Eleven 3/8" bolts ...
07/15/2025

The wooden base is set onto the deck of the trailer, and the aluminum tool box is set on top of that. Eleven 3/8" bolts hold the box and base down to the trailer frame. You'd never know that base was made of wood. And it would be hard pressed to figure out how that winch worked. The tall box shields the car being hauled on the deck from road debris fro the towing truck's tires.

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