cbforme
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Check sweeting performance look at bosh / bendix hydro-max they sell air force style with the reserve and the a3 version with the remote reserve. not cheap but give it a look.
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Dual Circuit Brake Engineering Thread
- Thread starter frodobaggins
- Start date
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- Qualicum Beach BC
Has anyone plumbed in a gauge at the outlet of the stock airpak and measured the line pressure with a max application? Inquiring minds want to know!
Last edited:
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biscuitwhistler37
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Page 15 of this thread has a reply from rusty that says around 800psi, checked by gauge. Glad you asked, I was curious too.
- 474
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- Qualicum Beach BC
Thank you very much for pointing me to that. There is so much info on these forums, but alas...for some reason i totally suck at the search.
800psi..is both good and surprising. I woulve thought it to be in the 12-1500psi range for sure. This is good news though and greatly simplifies things for what i want to try in another thread. Will make packaging much simpler.
Sumner
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- Wandering River, AB, Canada
So I thought I’d jump in here to share what I did on my bobber.
I had read a post previously by one fellow that mounted the Hydromax unit under the cab, rearward from the factory master cylinder, but I can’t seem to find it now. His installation is the route I decided to go, for a few reasons.
So a little more info on my truck. I installed power steering using a steering box and components from a Canadian MLVW, and used a 5ton power steering pump to run it. Works excellent.
I also wanted dual circuit brakes though. I used Hydromax setup out of a ford b-series school bus, and mounted it underneath, with a remote reservoir. I also used stock brake pedal too, with my own made adjustable link to the hydromax unit. Part of the reason I didn’t mount it on the firewall is that I didn’t want to have a hanging pedal for the brakes and a through the floor pedal for the clutch.
Using the factory pedal gives me a lighter than stock pedal feel, but not too light. And man does it work well. Will easily lock up all four tires on pavement if needed. Brakes better than it ever did with the stock setup.
One advantage with using the stock pedal geometry is that I don’t need to have the auxiliary electric pressure pump hooked up, could prob remove it altogether, especially considering the expensive “cross” part required to rotate 90 degrees from stock configuration. Did a test, and with the engine off, I can still stop the truck, just requires a bit more effort.
Only things left to do now is fabricate a mount for the winch pto shifter, and mount a switch for the brake lights.
Here’s a few pics of the installed Hydromax.
I had read a post previously by one fellow that mounted the Hydromax unit under the cab, rearward from the factory master cylinder, but I can’t seem to find it now. His installation is the route I decided to go, for a few reasons.
So a little more info on my truck. I installed power steering using a steering box and components from a Canadian MLVW, and used a 5ton power steering pump to run it. Works excellent.
I also wanted dual circuit brakes though. I used Hydromax setup out of a ford b-series school bus, and mounted it underneath, with a remote reservoir. I also used stock brake pedal too, with my own made adjustable link to the hydromax unit. Part of the reason I didn’t mount it on the firewall is that I didn’t want to have a hanging pedal for the brakes and a through the floor pedal for the clutch.
Using the factory pedal gives me a lighter than stock pedal feel, but not too light. And man does it work well. Will easily lock up all four tires on pavement if needed. Brakes better than it ever did with the stock setup.
One advantage with using the stock pedal geometry is that I don’t need to have the auxiliary electric pressure pump hooked up, could prob remove it altogether, especially considering the expensive “cross” part required to rotate 90 degrees from stock configuration. Did a test, and with the engine off, I can still stop the truck, just requires a bit more effort.
Only things left to do now is fabricate a mount for the winch pto shifter, and mount a switch for the brake lights.
Here’s a few pics of the installed Hydromax.
Another Ahab
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Brilliant!
Hey, Sumner, you could maybe document how you made the conversion, and sell the instructions for a popular (and nominal well-deserved fee)!
Oh, wait: Public Safety. Tort Attorneys. Liability.
Well. Then again. Maybe Not!
Sumner
Member
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- Wandering River, AB, Canada
I’m not sure how to take this? Are you saying I should not have posted? I can remove itBrilliant!
Hey, Sumner, you could maybe document how you made the conversion, and sell the instructions for a popular (and nominal well-deserved fee)!
Oh, wait: Public Safety. Tort Attorneys. Liability.
Well. Then again. Maybe Not!
Another Ahab
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- Alexandria, VA
No, no, no; not at all what I am saying!
My abject apology to you for making you uncertain:
- I am saying that your skiil and expertise (in making the retrofits), is SUPERB!!
And I am only realizing (in the middle of recommending that you capitalize on your talent), that the world is a complex (sometimes messy), place...
You are particulalry talented, Sumner, and that is especially commendable!
![[thumbzup]](https://www.steelsoldiers.com/images/smilies/icon_smile_thumzup.gif "Thumbs Up [thumbzup]"){kind=icon}
Sumner
Member
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- 60
- 18
- Location
- Wandering River, AB, Canada
Thank you, much appreciatedNo, no, no; not at all what I am saying!
My abject apology to you for making you uncertain:
- I am saying that your skiil and expertise (in making the retrofits), is SUPERB!!
And I am only realizing (in the middle of recommending that you capitalize on your talent), that the world is a complex (sometimes messy), place...
You are particulalry talented, Sumner, and that is especially commendable!
.