New to forum. Any problem with 20V 3amp on GO

1/43rd Scale Slot Car Forum

New to forum. Any problem with 20V 3amp on GO

Postby Apec » Thu Nov 02, 2017 5:21 am

Hello all, I knew this forum and hobby and really getting into it. I was looking for more power and performance from my Carrera GO, so I switched the transformer to a 20 V 3 amp. The difference is amazing, but now I’m wondering what damages could do? Are the main issues only shorter lifespan of the controller and motor? I’m now looking at something that variable so I can use and my son could also use at lower voltage.

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Re: New to forum. Any problem with 20V 3amp on GO

Postby Jesla » Thu Nov 02, 2017 5:33 am

20v.... a little hard on motors but not a problem

3amp... way out of line and dangerous, 3amps is enough to run a huge multi-lane
commercial track. Not what you want in a home track
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Re: New to forum. Any problem with 20V 3amp on GO

Postby HomeRacingWorld » Thu Nov 02, 2017 6:37 am

Well I will have to agree to disagree.

3 Amps is not much at all. Not even close for any multi-lane commercial track. Even it was 30, the cars will ONLY DRAW the amps they need.

It's the high voltage that will shorten the life of your motors. I feel that is excessive, but if you are happy...run them.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby RazorJon » Thu Nov 02, 2017 8:28 am

Been using a pyramid15 V 20 amp on my Carrera track for 6 or 7 years went to a 30V 10 Amp a couple years ago, I do keep the voltage down never past 16 volts on 1\32 and the big Carrera 1\24 I run at 20 Volts, no motor damage no controller damage rock on :music-rockout:
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Re: New to forum. Any problem with 20V 3amp on GO

Postby Jesla » Thu Nov 02, 2017 10:59 am

What I'm saying is for a 143rd home track 3amps is way too much.
should the track develop a short, 3amps even fused at 3 amps will
melt the track and possibly worse.

I use a 5amp power supply with a 1amp slow blow fuse. When all
cars are first accelerating they can pull more than 1amp for the
short duration to start the cars. Should the track develop a short
the max draw will be 1amp.

Have not had an issue in 40yrs and never had a car want for power....

I love speed but for home racing we must consider safety as well.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby pfuetze » Thu Nov 02, 2017 4:02 pm

on my 1/43 rd artin track, i used an old power supply from a PC. put out 12V with 10 amps. enough for artin cars :)
measured the current draw once, with a peak meter - 1.6A for a heavy magnet 1/43rd artin car.

once, i put a small coin accidently directly on the rails, just where the power was feeded into the track. push the Parma Eco all the way through, expecting to see an fast accelareting car. But the car did not move at all. Tried the diode rotary switch - nothing happened. pushed some times again. nothing.
found the coin.
touched the coin.
burned my fingers - man this was hot ...
but no bad things for car, track or controllers.

i would use some cheap "step down voltage modules" you get from ebay or amazon or something alike - to reduce and set the voltage you like.
but for my feelings, 20V and 3A sound great for a single power source for 2 pcs 1/43rd cars.
you can use one step down module per lane - so you can power seperately.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby mattb » Thu Nov 02, 2017 5:26 pm

3 amps is nothing!
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Re: New to forum. Any problem with 20V 3amp on GO

Postby BARC 1 » Thu Nov 02, 2017 7:58 pm

We are talking 143 scale where the motors draw little power. 3 amps will be more then enough. The motors will only only draw what they draw.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby Apec » Fri Nov 03, 2017 5:18 am

Thanks guya
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Re: New to forum. Any problem with 20V 3amp on GO

Postby BRS Hobbies » Fri Nov 03, 2017 11:12 am

My best advice would be to put a 1 amp fuse inline on one of the power leads. This should prevent any damage to any of the electrical components if a short circuit were to occur on the track. One amp is plenty of power for two Carrera GO slot cars.

Best regards,
Brian
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Re: New to forum. Any problem with 20V 3amp on GO

Postby RichD » Fri Nov 03, 2017 11:31 am

It is best to fuse each lane separately, if you fuse for all the lanes at once your protection will be minimal. Use the lowest value fuses that will not blow in normal use. The highest amp draw will happen when a car first starts up, the running amperage will be half of that or less. I would start with 1.5 amp fuses, but 1 amp fuses would probably be OK.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby Apec » Fri Nov 03, 2017 11:56 am

Any chance I got burn up the motors quickly? I’m not worried if a motor only last say, 6 months instead of two years (obviously its dependent on how much use per day), but I have two cars I bought used that are giving me motor problems that never did before. I’m POSITIVE it must be from added voltage and power which is ok and I can accept bc they are old cars bought used. Especially because the one car that stops after 5-7 mins use I bought used and had all resistors removes so its straight wire from the contacts to the motor.
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Re: New to forum. Any problem with 20V 3amp on GO

Postby pfuetze » Sat Nov 04, 2017 2:09 am

those electric parts between motor and pickup braid are NOT resistors! they are for electric interference reduction. it will not change the power that comes to the motor if they are there or not.

20V will wear the motor faster, yes. but if the car start again after some time, the car does have another problem not only the motor. if the motor gots woren out, it will go slower and weaker, but will grow strong again.
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