Adding this feature to your hand controller could give your slot car more power and top speed

In this video I explain how to do a simple modification to your slot car throttle to ensure you can get maximum power to the track and make sure your motor receives as much voltage as possible.
This may not work on all types of controller so please check with the manufacturer before making any modifications.
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[@Dracoool]

A tidy installation..well done 👍

[@Ozzy3333333]

The newer fets with under 1mΩ are better than relays for a many reasons:
1. More voltage to car (less resistance = more power)
2. Can easily be placed inside the plug (less wire resistance = more power)
3. Quicker response, relays are generally 10 to 20ms (0.02s) delay, fets can easily be under 100ns (0.000,000,1). (or ~200,000 times quicker response = quicker lap time)
4. More reliable
5. No clickity clack
6. Smaller
7. And lower cost
Literally a win win! Pun intended.

[@WaytooFastSpeed]

I have a tip you can do if you race and has no effect on rules. Add a capacitor either to the controller or on the car. 😊

[@CleaveTech]

Adding a capacitor to the car or controller only really makes a difference if you are using poor quality power supplies for your track. The capacitor would smooth out the power supply and could give more power. This is actually against the rules in some organisations.

[@WaytooFastSpeed]

@@CleaveTech I added one a stock car on a king track at Buena Park Raceway which is known as one of the fastest track in the world and many records have been set there. World's even held there. The cap did make a difference and it was much faster. Everyone was stumped. 🤣

[@r4p0z4marques4]

Hello mate how are you?
I was thinking on same thing add a capacitor on my controller because you know my local track if I do this like James does I'm am done so I have a question how do you put the capacitor it's just the positive of the capacitor anda positive of the controller?

[@r4p0z4marques4]

Or I need a nonpolar capacitor because when I brake (red wire) shorts with the black wire ?

[@WaytooFastSpeed]

@@r4p0z4marques4 Yes. It will up the voltage and or keep your voltage consistent and causes more of voltage hold on your line and on your car. What I find on the tracks is you share the voltage drops on all lines but doing this it won't happen to your lane with your car. It works beautifully. Eventually I'm sure they will make a rule against it. I don't race pro so they don't know I do this or even have it. It does not hurt anything either of the car or the track or the controller. I've done this on H.O. tacks in the past.

[@ali2ndmail]

In this particular controller I think you’d be fine without the use of the “flyback” diode. They are normally used for protecting sensitive components that may share a connection with the relay coil. I don’t think there is anything in this controller that would be sensitive to flyback voltages. I’ve been using the same sort of relay without a diode in my controller for years with no issue. I think it’s controllers MOSFETs that would be more sensitive to flyback.

[@Fabio-ns4ql]

As the coil de-energises it can put about 100V of noise back into the track. This can interfere with some timing systems. Ive retro fitted diodes onto the power and brake relays and an RC filter network on many DiFalco controllers which have a habit of causing timing systems to mis-count.

[@ali2ndmail]

@@Fabio-ns4ql true that it can cause noise. But not sure in practice how susceptible track systems are to this noise. For dead strips that are isolated I would hope this should not affect lap counting, especially if zener diodes are used between dead strip and computer.

[@ali2ndmail]

I have found out that there are some relays available with the diode built in. Which may save a little effort if you're worried about electrical noise. Will dig out the part number.

[@philkalbfell1649]

Fly back diode helps to reduce any interference with some track timing interfaces.

[@CiaranWhelan]

@@Fabio-ns4ql where can I see or read more info on these modifications please?