Surge brake conversion to electric over hydraulic

[badrano]

I currently have surge brakes with the kodiak 225 calipers. Can I convert over to an electric over hydraulic system using those calipers? Can't find any info on PSI rating for the calipers.

 

[tpenfield]

Following with great interest. I am considering the same conversion. My limited understanding is that you would want the master cylinder unit that is rated at 1600 psi.

Does your truck/vehicle have the electric brake controler?

 

[badrano]

Yeah, that's what I've seen for PSI of EOH systems. The master cylinder part is just the expensive part of the conversion plus the battery and stuff.
Yes, my truck is equipped for electric brakes....was the designated band trailer hauler which gave me the reason to make the addition

 

[alldodge]

Its my understanding that the E over H is a self contained unit. The surge brake actuator would need to be welded so it would no longer move. The truck break controller does everything else. Don't know if a new heavy cable is needed for power.

Member @bruceb58 has them on his trailer

 

[bruceb58]

I have EoH on my boat trailer. It is a stand alone unit. I put a Bolt through the coupler to keep it from moving as well as getting rid of the surge brake master cylinder. I have the Titan EoH on this trailer

On a travel trailer that I just sold, I had the Kodiak calipers and a Dexter EOH.

I just bought a new travel trailer and will also be converting it to disc brakes. Will be going with the DeeMax brakes on it.

 

[bruceb58]

Don't know if a new heavy cable is needed for power.

You need a cable that can supply up to 30A so most 7 pin connectors can't supply this unless it has a 10 AWG wire. On my Ford F150, I had a separate power connector that supplied the voltage to the EoH unit.

 

[badrano]

The surge brake actuator would need to be welded so it would no longer move.

I would just replace with a fixed tongue and sell the surge brake actuator.

 

[badrano]

You need a cable that can supply up to 30A so most 7 pin connectors can't supply this unless it has a 10 AWG wire. On my Ford F150, I had a separate power connector that supplied the voltage to the EoH unit.

Are you talking about the +12V Aux power pin or the brake signal pin?

 

[Scott Danforth]

brake calipers on trailers are rated well over 2900 psi because they are derived from the automotive world where you will see at least 2900 psi while panic braking

(the fittings and lines have a significantly higher rating)

 

[bruceb58]

Are you talking about the +12V Aux power pin or the brake signal pin?

Aux power. The brake line itself is just going to the controller board inside the EoH unit. VERY low current.

I have a Anderson connector I mount at my rear bumper. On my F-150 I used 6 AWG wire. On my new GMC 2500HD Denali I ran 2 AWG but it is also used for other things. On my Rivian, it's not capable of supplying that much 12V power so I have a small lithium battery in the rear bed of the truck.

I 3D printed the connector holder. It's also easy to just tuck it up under the bumber when not in use.

 

[bruceb58]

I would just replace with a fixed tongue and sell the surge brake actuator.

That's what I did on one trailer I had. The other trailer had a welded on actuator so I bolted that one. Grade 5 5/8"

 

[bruceb58]

For trailer disc brake EoH units, they typically run at 1,600 PSI

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