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GearVendors Shift Switch

Doorkicker

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Question for those using GV under/over drive guys... I'm currently using the MSD shift controller that GV provided with a manual switch setup so that I can flip it on and off when I want, like I'm sure many of you are doing. However, there is a slight delay in the controller.... probably because it's making sure correct speed, direction, etc. All good stuff. But I'd like to have the shift instant. Today it takes a half second. That doesn't sound like a lot but I have to shift "early" so that it goes into and out of OD when I want it to. I have created a locking relay circuit so that it's a momentary on or off situation that goes directly to the solenoid on the GV OD.

With all that being said...
Question #1 - Installing a direct switch, bypassing the controller, is this common? Any issues I need to be aware of?
Question #2 - Do you have a better idea for a momentary switch for on and off as opposed to my locking relay setup?

Thanks in advance.
 
Question 1: GV actually recommended this method to me when I called to get a replacement analog controller and got told the price of the replacement digital ones. "You just need 12v switched to the solenoid" was his response. The only issue you have to be aware of is you have to manually disengage it below 20-25 mph, the controller will no longer do it for you. If you have an auto then you can just wire it in using the dimmer switch. 4 speeds become more problematic as you're supposed to clutch whenever you engage/disengage the unit and doing both button and clutch at same time.

Question 2: I'm looking for the same myself, if I get rid of the controller I can no longer use the shift knob to engage/disengage it and will have to use another switch on the dash. (I don't want a rocker switch taped to shifter handle).
 
So, what I did is stitch together 5 relays (I know, it's a bit much, but...) creating a latching relay...that will upon pressing a momentary switch will supply power to the solenoid on the OD and if you press again it will remove the power. Basically, a rocker switch just doesn't do the trick and I wanted a button I just press, and I didn't want a switch that "clicks" on and off... just a button.

Yeah... I already turn on/off depending on speed and, of course, you can't turn on in reverse.... all of which the controller makes sure you don't do. When I first put it in the car wasn't so "hot" , I put in auto-mode in case my wife wanted to drive it... that never happened and with will definitely not happen now that I have a different setup... lol So, now I'm going full race mode :)

Here is the latching relay setup...

1753990777406.png
 
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Since your locking relay is basically just a complex on/off switch controlled by a momentary one, I'd stick that route. Same result, just different method.

Any chance you wrote up a schematic of the relays? I'm trying to avoid doing something like that but I do enjoy clutching/shifting/engaging all in one shot.
 
Since your locking relay is basically just a complex on/off switch controlled by a momentary one, I'd stick that route. Same result, just different method.

Any chance you wrote up a schematic of the relays? I'm trying to avoid doing something like that but I do enjoy clutching/shifting/engaging all in one shot.
1753990965718.png
 
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