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which relay for ignition switch?

This is a discussion on which relay for ignition switch? within the Technical forums, part of the Caferacer.net Forums category; hello folks, need some input on a relay for the ignition setup i'm trying to pull off. i want to use a 4-pole relay with ...

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  1. #1
    Senior Member jackshite's Avatar
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    which relay for ignition switch?

    hello folks,

    need some input on a relay for the ignition setup i'm trying to pull off.

    i want to use a 4-pole relay with the 'switch' i've come up with. i need to know where to find one appropriate to my application.

    sealed, doesn't need to be more than 15-20 amp capacity, wired coming off the fused positive from the battery, relay to ignition switch (a heavy-duty jack, hot from relay, ground to frame), then on to coils, headlight switch, etc.

    need heavy duty but small and easily hidden in underseat electronics...
    suggestions where to look? so many options, many of which seem like overkill for this particular app.

  2. #2
    Senior Member crazypj's Avatar
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    Shouldn't need heavy duty, 5 amp mini should be fine (one for each coil?)
    You could encapsulate mini relays
    Kawasaki have some relatively small circular relays, you could probably snip them out of a junkyard harness?
    I'm going to run ground side through kill switch
    I dabble in rocket science, when I\'m not picking my nose
    The other night I gave my girlfriend an orgasm, but, she spat it back at me

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  3. #3
    Senior Member Teazer's Avatar
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    I got mine from Eastern Beaver http://easternbeaver.com/Main/Elec__...ys/relays.html but you can probably get them from many other places on line.

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  5. #4
    Senior Member Teazer's Avatar
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    I got mine from Eastern Beaver http://easternbeaver.com/Main/Elec__...ys/relays.html but you can probably get them from many other places on line.

  6. #5
    Senior Member gs1327's Avatar
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    Not trying to be a dill, but why 4 pole?
    Single pole relay with 20-40 amp capacity is compact and dirt cheap, even available at the corner auto parts chain store.

  7. #6
    Senior Member gs1327's Avatar
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    Not trying to be a dill, but why 4 pole?
    Single pole relay with 20-40 amp capacity is compact and dirt cheap, even available at the corner auto parts chain store.

  8. #7
    Senior Member hillsy's Avatar
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    Look for a car horn relay. Most common are 30a and they're dirt cheap. The one Teazer posted will do the trick too.

  9. #8
    Senior Member hillsy's Avatar
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    Look for a car horn relay. Most common are 30a and they're dirt cheap. The one Teazer posted will do the trick too.

  10. #9
    Senior Member jackshite's Avatar
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    just grabbed a 4-pole 30 amp from the auto store. thanks for the replies.

    in answer to why i used this particular relay, a little background...
    i've been playing guitar for a really long time. played music professionally for the better part of 20 years.
    i was talking to a pal about coming up with a cool ignition that wouldn't be a big ugly keyed stocker, or just a toggle switch hidden away somewhere. he told me about seeing a custom harley that had an 1/8th inch jack (like a mini headphone jack) for the 'key'.
    i have a ton of guitar and amp parts stashed. i came up with an idea to use a 1/4" speaker jack, with a 1/4" plug from a custom guitar cable as my 'key'. the plug is really small, really cool looking machined brass, and the way the speaker jack is wired to the relay, when i insert the plug, i connect the ground, turning the power on.

    i'm super stoked, it worked like a charm, fired the engine for the first time tonight!

  11. #10
    Senior Member jackshite's Avatar
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    just grabbed a 4-pole 30 amp from the auto store. thanks for the replies.

    in answer to why i used this particular relay, a little background...
    i've been playing guitar for a really long time. played music professionally for the better part of 20 years.
    i was talking to a pal about coming up with a cool ignition that wouldn't be a big ugly keyed stocker, or just a toggle switch hidden away somewhere. he told me about seeing a custom harley that had an 1/8th inch jack (like a mini headphone jack) for the 'key'.
    i have a ton of guitar and amp parts stashed. i came up with an idea to use a 1/4" speaker jack, with a 1/4" plug from a custom guitar cable as my 'key'. the plug is really small, really cool looking machined brass, and the way the speaker jack is wired to the relay, when i insert the plug, i connect the ground, turning the power on.

    i'm super stoked, it worked like a charm, fired the engine for the first time tonight!

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