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[Fot] Adding type A OD

Subject: [Fot] Adding type A OD
From: fmccjr at aol.com (fmccjr at aol.com)
Date: Wed, 21 Feb 2018 14:30:52 -0500
References: <161b9373f28-c88-3d0a1@webjas-vac036.srv.aolmail.net>
Mine is on the gear lever (toggle switch), but I wired an led on the dash to 
tell me it's engaged. Now I don't forget! 

Rick McCurdy
Newburgh, NY

> On Feb 21, 2018, at 11:34 AM, Steve Smith via Fot <fot at autox.team.net> 
> wrote:
> 
> I DO NOT like the on-off toggle switch for the OD's as I would downshift out 
> of OD and forget to toggle the switch to off so I went back into OD as soon 
> as the third gear switch was reengaged.  To combat this I used a standard 
> electrical control scheme called "Three wire control" to engage the OD relay 
> but drop it out when the shifter switch opened.  To re-engage overdrive a 
> pushbutton would activate the relay and latch itself in so the pushbutton was 
> just momentary.  Does that make sense?  I can do a drawing if not clear.   
> Steve
> 
> 
> 
> -----Original Message-----
> From: Jack Wheeler via Fot <fot at autox.team.net>
> To: Greg Blake via Fot <fot at autox.team.net>
> Sent: Wed, Feb 21, 2018 8:12 am
> Subject: Re: [Fot] Adding type A OD
> 
> For all of my 24 years of SCCA racing, I had the O/D switch mounted on my 
> shift lever.  Very convenient, and allowed for faster shifting.
> 
> Jack Wheeler
> 
> 
> On Wednesday, February 21, 2018, 4:14:18 AM EST, Greg Blake via Fot <fot at 
> autox.team.net> wrote:
> 
> 
> Looking for what Bosch relay I could substitute for the standard Lucas part 
> number. Originally is not an issue as this is under the dash in my race car. 
> 
> Also looking for advice on OD switch location for the race car. What do you 
> guys like to use?  I was thinking a button on the steering wheel or on the 
> shifter must be convenient. 
> 
> Appreciate the ideas. 
> 
> Greg
> 
> Sent from my iPhone
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