Power Brake Booster

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BRIND

BRIND

Joined
Jan 23, 2018
Threads
2
Messages
12
Location
Dallas, TX
I have a 65 FJ40 with disc brakes all around and a Wilwood master cylinder. This rig has no brake booster. Looking to add a brake booster / hydroboost even if I have to change the master. Firewall has 3 bolt pattern and yes has the rib on the engine bay side. Not opposed to a little fabrication if that's what it takes. Brakes work good, just takes a lot of effort. Thanks in advance if you have recommendations... Yes that's a small block.
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Pretty sure that Mark's Off Road makes/has an adapter to fit a vacuum booster on early firewalls/cowls. 818-953-9230

@65swb45
 
Well I finished my booster project. Moved the battery to the passenger side a couple months ago. AND I got my two teenage girls to help out! Guess they want to drive it LOL ! That's why I wanted power brakes! Here's a few pics. I made a bracket to offset the booster as this early FJ has the rib in the firewall. Thanks to Rick at BTB Products for the components and to Elegant Overkill for the fabrication support!

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Booster components mounted.webp


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bikersmurf said:
What booster & master did you use?

How do your brakes work? To much/little boost?
Click to expand...
btbprod.com

FJ40 FJ45 FJ55 BJ40 Brake Booster Master Combo System for Toyota Disc Brake Conversions 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984 - BTB Products - Land Cruiser Restoration and Parts

THIS DUAL DIAPHRAGM 8.5" BOOSTER / MASTER COMBO SYSTEM WAS DESIGNED FOR FRONT AND REAR DISC BRAKE CONVERSIONS. MOUNTS TO YOUR EXISTING FIREWALL WITHOUT MODIFICATIONS OR EXTENSIONS ON LAND CRUISERS THAT HAD THE SMALLER OEM BOOSTER ON THEM. ANOTHER BTB EXCLUSIVE PRODUCT
btbprod.com btbprod.com
 
bikersmurf said:
What booster & master did you use?

How do your brakes work? To much/little boost?
Click to expand...
This rig has disc brakes all the way around. I used to have to push real hard before adding the booster. Especially when it was cold right after start (almost couldn't stop it). Now I have a real easy pedal push and stops on a dime.
 
BRIND said:
This rig has disc brakes all the way around. I used to have to push real hard before adding the booster. Especially when it was cold right after start (almost couldn't stop it). Now I have a real easy pedal push and stops on a dime.
Click to expand...

With an 80 booster and master, mine will lock all 4 at 30 mph with the stab of two fingers... some would say over boosted.
 
Nice job. I went with hydroboost with 4 discs myself and prefer it. Similar cost and I wanted power steering. Your install looks great, sir. The header wrap is a great compliment as well. Happy wheeling.
 
1911 said:
Pretty sure that Mark's Off Road makes/has an adapter to fit a vacuum booster on early firewalls/cowls. 818-953-9230

@65swb45
Click to expand...

@65swb45 , I am actually attempting to put a brake booster on my earl 70 year model 40. I also have the firewall with the pillar or post in the middle of where the booster would go. I would need the adapter mentioned above I am assuming but would love some feedback to make sure I am not missing anything. Feel free to shoot me a message or I can try and give you a call after you get back on the 30th.
 
He responds to phone calls and leave a message. He will probably show up here too.
 
lazarus18 said:
@65swb45 , I am actually attempting to put a brake booster on my earl 70 year model 40. I also have the firewall with the pillar or post in the middle of where the booster would go. I would need the adapter mentioned above I am assuming but would love some feedback to make sure I am not missing anything. Feel free to shoot me a message or I can try and give you a call after you get back on the 30th.
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Returned your voicemail Clay.😊
 
65swb45 said:
Returned your voicemail Clay.😊
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Thank you! I am not in front of the 40 to get you a photo of what I have carb wise but it looks identical to this and glass window looks identical to this as well. If this does not help please let me know and I will run out to the shop today and get actual photos for you.

Please note, I do have the oil bath filter that I will be adding, I am not sure if that would get in the way of the bracket and master cylinder/brake booster. Let me know your thoughts as I would be looking to go ahead and do a new master/brake booster/bracket.

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what it will look like with the oil bath filter and not sure on space needed (im sure you are aware and know spacing. Mine is not this clean though, maybe one day!

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That air cleaner is not designed for a 2 barrel carburetor. And it is not stock for 1970 either. Perhaps you are mistaken.

I would not advise trying to cut up a 1bbl oil bath air cleaner to fit over a 2bbl carb. As for the carb, I think it is a big step backwards to try and fit a 2F vacuum secondary carb to a 1970 engine which came with a fully functional, mechanical secondary 2bbl.

In other words, I’m advising you to reconsider your choice of carburetor and air cleaner before moving forward with the brakes.
 
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65swb45 said:
That air cleaner is not designed for a 1barrel carburetor. And it is not stock for 1970 either. Perhaps you are mistaken.

I would not advise trying to cut up a 1bbl oil bath air cleaner to fit over a 2bbl carb. As for the carb, I think it is a big step backwards to try and fit a 2F vacuum secondary carb to a 1970 engine which came with a fully functional, mechanical secondary 2bbl.

In other words, I’m advising you to reconsider your choice of carburetor and air cleaner before moving forward with the brakes.
Click to expand...
I do see you are correct on the carb. Since the carb and cleaner will affect the bracket and brake booster/master cylinder setup, what do you suggest if you do not mind me asking. I would like everything to fit right and if I need to spend the money now to get it all fixed up I would like to do that. Feel free to give me a call if better... either here or by phone is fine with me. Thank you for the help!
 
65swb45 said:
That air cleaner is not designed for a 2 barrel carburetor. And it is not stock for 1970 either. Perhaps you are mistaken.

I would not advise trying to cut up a 1bbl oil bath air cleaner to fit over a 2bbl carb. As for the carb, I think it is a big step backwards to try and fit a 2F vacuum secondary carb to a 1970 engine which came with a fully functional, mechanical secondary 2bbl.

In other words, I’m advising you to reconsider your choice of carburetor and air cleaner before moving forward with the brakes.
Click to expand...

@65swb45, thank you for the great conversation over the phone and wisdom on what my next steps should be. Photos are attached of my actual carb that was on the truck when I bought it.

I hope everyone is as appreciative as I am when it comes to members of this forum and group. The knowledge/wisdom is greatly appreciated from folks like yall and Mark here. I would recommend anyone struggling with things like this or even carbs to give Mark a call and I’m sure he can get you what you need.

I learned a few things and am going to “pump the brakes” on the brake booster. More than likely I will be replacing the carb/master cylinder and then going to a booster that will work with disc brakes as I plan to convert over from my front drum brakes.

Mark, I’ll be in touch on purchasing everything through you as I have had many recommend you including a few local people in East Texas.




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