B&J autoshift

Looking to set up a autoshift system on our outlaw car. We have a 3 speed B&J transmission, i have been looking online and can only seem to find systems for the Lenco transmission and being the PSI difference between the 2 cant seem to find one that will handle the shift pressure of the B&J.

Whats out there?

 

Use a small regulator to reduce the pressure for your low pressure needs, to act as a relay.
That’s what I had to do with my car. It worked great.
Eric

 

Dave Leahy makes an auto shift solenoid system that works with the B&J. You will have to figure out how to make it all work with whatever you will be triggering it from. I have always used them with his command module so it’s plug and play.

 

I'm also in the process of figuring this out. I'm figuring on using an MSD shift controller to control the solenoids, but I haven't gotten around to sourcing the solenoids yet. You're right - most of the shift solenoids out there will not handle the higher pressure required by the B&J.

 

I've done some research and I'm going to use the Electrimotion auto shift solenoids and trigger them with the ACD shift box.

 

That should work - I was either going to use ACD or MSD and happened across an MSD first so that's what's on my shelf. The Electrimotion one looks a bit complicated with what looks like 2 solenoids on each valve, hopefully the wiring isn't too complicated when you're not running their timer box.

 

It’s very easy for Lahee one. The other side of the solenoids is for the dump psi off it side. We just wired ours into the FuelTech I have on my car. Simple , lite and has parts to rebuild if a failure occurs.

 

I have had EMI issues with the MSD shift box in the past. The box I was running they don’t make anymore, so maybe they fixed the issue. I ended up mounting the box up over the wheel tub and changing plug wires. The racepack analog channels used to randomly act funny as well, and that went away with the new wires. The funny thing is the shift box was always mounted next to the msd ignition box. When we upgraded to the msd 8 is when the problems started.

 

Thanks for the tips guys.

 

I used the Leahy auto shifter which he will tell you isn't an auto shifter. It looks like an H. You can control it with anything that sends a ground or pos at a time or rpm. I use my power grid for 1-2 and 2-3. 1-2 is controlled by RPM with a timed safety to prevent shifting if you blow the tires off and 2-3 is done using the shift light signal with 1-2 shift light turned off in the option settings.

That deal from Brad at WYO sounds like a neat deal as well.

Hope that helps,
Trev

 

Trevor does the Leahy have internal latching or did you have to add a latch solenoid since the signals from the Grid are momentary?

 

If you have the 3 stage timer you can define how long the pulse is for. I can tell you that the command module opens the solenoid for a pre defined set of time and then closes again. Then you have to energize the other solenoid to dump the air.

 

ah - I forgot there's 2 solenoids, so it's 'latching' by design because the 'in' solenoid only needs to be on long enough to fill the cylinder.