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T4 with exhaust brake?

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  #76  
Old 05-12-2020 | 04:34 PM
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Brokestroke, maybe I can help with the wiring diagrams you are looking for...

What manufacture year are you looking for?

What circuits are you looking for?

BPA or BOO switches might be a viable option as well...
https://www.ford-trucks.com/forums/1...-cruise-2.html
 
  #77  
Old 05-12-2020 | 05:09 PM
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Let me see if I can find the schematic from my EBPV-as-exhaust-brake mod. If memory serves, the EBPV signal is straight 12VDC.
 
  #78  
Old 05-12-2020 | 05:58 PM
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Originally Posted by brokestroke
So can I power the EBPV solenoid with just regular 12v or does it have to be reduced down? Not planning on using the PCM to power it.

Only issue with the Idle Validation Switch is its backwards. I would like 12v supply when the throttle is deactivated (activating exhaust brake) and 0v when throttle is applied. Trying to figure out the correct way to wire it but all the diagrams are different.
Could you just use a normally closed relay. When the 12v signal is gone, it completes the circuit (activating your brake).

My attention span isn’t long enough to read this whole thread..... I’m curious if you’ve figured out how to deactivate ‘exhaust brake’ at low speeds/RPM’s.

Ive installed an exhaust brake mounted under the truck with T4 turbo. The delay in braking with extra pipe is insignificant. But, leaks will be identified!! The electric actuator SLAMS the valve shut and it’s like hitting the brakes. No comparison to what the wimpy EBPV can do for braking power and it’s really fast.
 
  #79  
Old 05-12-2020 | 06:34 PM
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Originally Posted by SkySkiJason
Could you just use a normally closed relay. When the 12v signal is gone, it completes the circuit (activating your brake).

My attention span isn’t long enough to read this whole thread..... I’m curious if you’ve figured out how to deactivate ‘exhaust brake’ at low speeds/RPM’s.

Ive installed an exhaust brake mounted under the truck with T4 turbo. The delay in braking with extra pipe is insignificant. But, leaks will be identified!! The electric actuator SLAMS the valve shut and it’s like hitting the brakes. No comparison to what the wimpy EBPV can do for braking power and it’s really fast.
Thought about an NC relay but couldn't really find anything. Not sure if I was typing the wrong description or what.

***edit, found one.
 
  #80  
Old 05-12-2020 | 07:19 PM
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Originally Posted by SkySkiJason
Could you just use a normally closed relay. When the 12v signal is gone, it completes the circuit (activating your brake).

My attention span isn’t long enough to read this whole thread..... I’m curious if you’ve figured out how to deactivate ‘exhaust brake’ at low speeds/RPM’s.

Ive installed an exhaust brake mounted under the truck with T4 turbo. The delay in braking with extra pipe is insignificant. But, leaks will be identified!! The electric actuator SLAMS the valve shut and it’s like hitting the brakes. No comparison to what the wimpy EBPV can do for braking power and it’s really fast.
I plan on having a toggle on the dash to arm/disarm for low rpms/speed. Not sure how bad it will be at low speeds as long as it is tied to the throttle pedal.

What electric actuator are you running?
 
  #81  
Old 05-12-2020 | 08:04 PM
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Originally Posted by brokestroke
I plan on having a toggle on the dash to arm/disarm for low rpms/speed. Not sure how bad it will be at low speeds as long as it is tied to the throttle pedal.

What electric actuator are you running?
I was trying to see what kit I used. I think it was a BD Diesel 4” remote mount kit with electric actuator. The customer specified that because he had bad experiences with the pneumatic and vacuum style in the past. The electric one closes with AUTHORITY!! Lol. It’s like BANG,,,,,, WHOOIIIISSSHHHHHHHHHHH!!!!
 
  #82  
Old 05-12-2020 | 09:03 PM
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Rough wiring schematic, the NC relay wired with the IVS switch cleans everything up. Ordered an adjustable NC (normal close) pressure gauge to limit peak EBP. It is ground most of the time and when it hits peak EBP it opens the ground. It is adjustable from 1-100psi, will put up specs later.



 
  #83  
Old 05-13-2020 | 06:03 AM
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What about using a low pressure switch to turn ex brake off at low RPM?
 
  #84  
Old 05-13-2020 | 06:20 AM
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Here’s my source for all types of relays as well as wire, terminals, etc, etc.

Request a catalog and enjoy months of bathroom reading material and discover stuff ya never knew you needed/wanted!!

https://m.delcity.net/productsearch?...y+&x=0&y=0&it=
 
  #85  
Old 05-13-2020 | 06:30 AM
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A Hobbs switch is common for this type of application. I quickly found this.

https://www.napaonline.com/en/p/ECHO...ng_dcoe_google

Wonder if that would allow ex brake to be ON at plus 11psi of EBP, But OFF at lower pressure??

There are LOTS of variations of this type of switch.
 
  #86  
Old 05-13-2020 | 06:44 AM
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Originally Posted by SkySkiJason
Here’s my source for all types of relays as well as wire, terminals, etc, etc.

Request a catalog and enjoy months of bathroom reading material and discover stuff ya never knew you needed/wanted!!

https://m.delcity.net/productsearch?...y+&x=0&y=0&it=
Nice. Got that free catalog coming in the mail!
 
  #87  
Old 05-13-2020 | 06:47 AM
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@brokestroke Here's the circuit you are looking for FWIW.

 
  #88  
Old 05-13-2020 | 07:29 AM
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This is the EBP switch I ordered. Not 100% sure it will work, but it did take 2 hours of random Ebay searching to find it. Adjustable from 1-100psi and based off the picture it looks like the knurled portion on the top is the adjuster. This way I can have a safeguard to prevent over pressuring, since the exhaust brake is a custom design.

Specifications:
Model No.: P117G-25N-C12L-X Max. Pressure: 100 PSIG Set Point Pressure Range: 1 to 100 PSIG Max Amps and Voltage: 1 Amp, 125 VAC Wetted Materials: Stainless Standard Fitting: 1/8" NTP Weight: 6 ounces

 
  #89  
Old 05-13-2020 | 07:40 AM
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Originally Posted by SkySkiJason
A Hobbs switch is common for this type of application. I quickly found this.

https://www.napaonline.com/en/p/ECHO...ng_dcoe_google

Wonder if that would allow ex brake to be ON at plus 11psi of EBP, But OFF at lower pressure??

There are LOTS of variations of this type of switch.
Still thinking about this part of it. How do you suppose I can achieve 11psi EBP with the Exhaust Brake open and going down a hill with zero throttle input?

 
  #90  
Old 05-13-2020 | 11:52 AM
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Originally Posted by brokestroke
Still thinking about this part of it. How do you suppose I can achieve 11psi EBP with the Exhaust Brake open and going down a hill with zero throttle input?
Add a circuit for brake pedal activation? Touch brake pedal to turn exhaust brake on? Maybe use a time delay relay to keep it on? (Throttle activation would still turn it off)
 


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