Tusk Grip heater resistor size

Discussion in 'The Garage' started by rdhj, Dec 23, 2012.

  1. rdhj

    rdhj NJ Dual Sport Rider

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    anyone have the tusk grip heater kit with the white rectangular resistor...i need to get a new one and need the size off of it
    #1
  2. Wapner

    Wapner Adventurer

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    Mine says 10 W 2 Ohms.
    #2
  3. rdhj

    rdhj NJ Dual Sport Rider

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    cool..thanks:clap
    #3
  4. outfront

    outfront Adventurer

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    I believe they are 2k ohms. I had those on one of my bikes. high was to hot and low was to cold; so I bought a 1k ohm resistor from Radio Shack and eliminated the 3 position switch to a two position. I basically had a medium heat only.
    #4
  5. Beezer

    Beezer Long timer

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    can't be K ohms unless it is used in a transistorized controller. E=IxR

    1000 ohms in series would limit current to less than .oo12 Amps


    P=IxE so, .0144 watts max


    1K pot on the base of a transistor controller would be OK... I built one for my vest with a 500 ohm in the base circuit
    #5
  6. D.T.

    D.T. PITA but useful

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    I had one break on me recently. I zip tied it to my fork tube and the stress from the flexing broke a lead off at the resistor. Now I have it hanging in the breeze. I had a 10W 1 ohm resistor I replaced it with. The original was a 2 ohm. You can get them at the rat shack.
    #6
  7. Peanuts

    Peanuts Long timer

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    I bought a different switch so the grips were in parallel for high and series for low. No need for that vulnerable resistor...

    [​IMG]
    #7
  8. saddlsor

    saddlsor my butt hurts

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    how's the heat in the low position? from what I've read wiring them in series has the grips drawing anywhere from 25 to 50% of the high setting. my bike doesn't have a lot of electrical output so wiring in series should help. do you have any idea how many watts they draw in the low position(series) compared to the high position?......thanks

    nice drawing by the way.
    #8
  9. duck

    duck Banned

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    #9
  10. D.T.

    D.T. PITA but useful

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    Now that's what I like about these forums. Good advice!
    #10
  11. Peanuts

    Peanuts Long timer

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    #11
  12. Spud Rider

    Spud Rider Long timer

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    I think substituting this electronic flasher for the 2-ohm resistor will work well; this flasher only costs $12.99.

    http://www.autozone.com/autozone/pa...ng-Flasher/_/N-9cjeg?itemIdentifier=6417_0_0_

    [​IMG]

    [​IMG]

    I analyzed the DPCO switch cirucuit, with the help of an electrical engineer. The Tusk Heated Grip Kit consumes about 9.0 watts per grip on low setting, with the resistor consuming about 7.2 watts. The high setting consumes about 17.8 watts per grip. Therefore, the low setting generates about 1/2 the heat of the high setting, and wastes 7.2 watts from the resistor.

    The DPCO switch circuit consumes about 4.42 watts per grip on the low setting, which is about 1/2 the heat generated by the Tusk setup on low heat, and 1/4 the heat generated by the high setting. :(: Therefore, I think I am going to install an electronic relay in place of the resistor. :deal The LED dimmer is very nice, and inexpensive; however, it's just too large for me.

    Spud :wave
    #12
  13. Peanuts

    Peanuts Long timer

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    #13
  14. duck

    duck Banned

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    #14
  15. Spud Rider

    Spud Rider Long timer

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    Thank you for posting the good tips, gentlemen! :D

    Spud :wave
    #15
  16. Spud Rider

    Spud Rider Long timer

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    I found a small, pulse width modulation (PWM), LED dimmer on eBay for $3.48 delivered. :D

    http://www.ebay.com/itm/140813968248?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

    [​IMG]

    I am going to substitute this PWM device for the 2-ohm resistor which reducess power for the low setting on my Tusk grip heaters. :deal This device is fully adjustable from zero power to full power. This dimmer is also small enough to fit easily behind the headlight shroud; it has the following dimensions.

    Length: 2-5/8 inches
    Width: 1-5/16 inches
    Height: 7/8 inch

    This PWM device is rated for 5 amps current, and 60 watts power. The Tusk grip heaters draw a maximum of 3 amps current, and 36 watts power. :D

    Spud :beer
    #16