i need a relay to turn on based on rpm

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Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=104404
Printed Date: May 16, 2025 at 12:25 PM

Topic: i need a relay to turn on based on rpm

Posted By: digdug18
Subject: i need a relay to turn on based on rpm
Date Posted: May 01, 2008 at 6:46 PM

Please help, I'm driving a honda, and I need a relay to turn something on based on my rpm, and versus using vacuum or something of that nature.

Andrew

Replies:

Posted By: i am an idiot
Date Posted: May 01, 2008 at 8:17 PM

https://www.msdignition.com/pdf/FRM23778-PN%208950.pdf

Posted By: fuzion1029
Date Posted: June 06, 2008 at 8:59 PM

just curious why you might need something like that?

Posted By: i am an idiot
Date Posted: June 06, 2008 at 9:31 PM

We will probably never find out. He hasn't logged on since the day he posted the question.

Posted By: KPierson
Date Posted: June 07, 2008 at 9:27 AM

VTEC Controller!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Haha, any frequency based switch will do what you are looking to do.

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Kevin Pierson

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