Subject	True. You could use any comparator circuit
Posted by	ZCulture on October 31, 2007 at 5:59 PM
	This message has been viewed 45 times.
In Reply To	and it would illuminte everytime you let off the throttle posted by zgene4 on October 31, 2007 at 05:41 PM
Message	like the original writeup did. I'd use a cheapo A/D converter IC along with a logic IC to get an identical behavior.
Follow Ups	EBC users: Any interest in a safety boost warning device? - zgene4 14:08:53 10/31/07 wouldn't this be useless to anyone using a JWT ECU - ZEngineer 14:12:00 10/31/07 Re: wouldn't this be useless to anyone using a JWT ECU - zgene4 14:14:41 10/31/07 Negative. The safety boost function still works. I believe - Eric(NJ) 14:19:59 10/31/07 I think the circuit designed here takes that into account - jcieslik 14:25:38 10/31/07 Yeah, that's the circuit I was originally going to use but I - Eric(NJ) 14:40:41 10/31/07 Correct, the LED in this design will not illuminate at idle (n/m) - zgene4 14:54:53 10/31/07 As long as that is the case then I would be interested. (n/m) - Eric(NJ) 14:56:43 10/31/07 I ran in safety boost for months with my JWT ECU. - rojoloco (Yokosuka, Japan) 23:24:55 10/31/07 Sounds good. $40 is a fair price for a warning of an issue - Barry'z (NJ) 14:29:35 10/31/07 sluggishness and 7 PSI boost are pretty obvious - vorpalZ 14:33:39 10/31/07 Re: sluggishness and 7 PSI boost are pretty obvious - zgene4 14:55:47 10/31/07 What triggers safety boost? Is it the knock sensor - AZHeat 14:44:55 10/31/07 Knock sensor and coolant temp sensor can cause safety boost. - Eric(NJ) 14:48:15 10/31/07 It's really not needed - ZCulture 15:20:07 10/31/07 Very cool, I think I'll do that this weekend. (n/m) - Barry'z (NJ) 15:35:18 10/31/07 I'd probably go with this - turbomaniac 15:47:28 10/31/07 I wouldn't mind a visual confirmation of safety boost. (n/m) - Eric(NJ) 16:33:19 10/31/07 Put an LED in parallel with the relay. Done. (n/m) - MixManMash 17:28:55 10/31/07 If you do that then you still run into the same problem of - Eric(NJ) 17:38:21 10/31/07 and it would illuminte everytime you let off the throttle - zgene4 17:41:44 10/31/07 True. You could use any comparator circuit - ZCulture 17:59:03 10/31/07 in english please - zgene4 18:53:53 10/31/07 Yep, looks like that is the better option and saves me a lot - zgene4 17:42:37 10/31/07 Re: EBC users: Any interest in a safety boost warning device - Z-Tech 16:25:30 10/31/07 Re: EBC users: Any interest in a safety boost warning device? - Hipendicular 20:54:43 10/31/07
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