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Parma Controllers

8120 Views 17 Replies 13 Participants Last post by  Michael363672
Hi Everyone,

I'm currently using a Parma Economy 25 ohm controller for racing magnet cars at our club on Ninco track.

Is it worth me upgrading to a Parma Plus controller?


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Hi Andy
Are you noticing any problems with your controller?
If not, you probably won't gain much by changing.

One problem Economy resistors are prone to is the wire moving around on the resistor - this can lead to failure. Further up the Parma range, the resistors have the resistance wire bonded on, but the don't on the Economy hence the problem. No point in replacing the resistor if it's working well, but if it does fail it would be a good idea to replace it with a better one.
The question asked was "Is it worth me upgrading to a Parma Plus controller?"

Black3sr raises a much wider question - what other upgrades are worth a try........And yes there's no doubt that the thing that makes most differance to how well the car goes is the skill of the driver.

A Parma Economy and a Parma Plus do much the same thing - no brake adjustment and no sensitivity adjustment. That's just fine of the one you have is right for the cars you are trying to drive. It isn't just fine if those weren't the best settings for your cars.

A brake pot might be worth trying, its a fairly cheap add on to either a Parma Economy and a Parma Plus. Reduced brakes are very useful with some magnet cars.

There are a couple of ways of adjusting the sensitivity of a Parma Economy and a Parma Plus, that's a long way short of what an electronic controller can do but some say its worthwhile.
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QUOTE (re-slotted @ 1 Jan 2012, 16:55) <{POST_SNAPBACK}>what does the different amount of resistance equate too?
ie 15ohm, 25ohm etc, Does it have something to do with the braking effect?
The resistance is measured when the trigger is pushed just far enough to take it off the brake position.
It has nothing to do with the braking effect, which is a separate connection that is only made when the trigger is in the brake position.

Reasons you might need a lower resistance controller are powerful motors, cars with more grip, lower track voltages, tracks without tighter corners and driver preference.
(and vica versa - so you might need higher resistance for less powerful motors .......etc. )

Full brakes are when the brake connection is as near as practical to zero ohms. To reduce the brakes, resistance can be added in the brake circuit.
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