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iBooster Electric Brake Booster

Thanks for this thread.

Picked one up to try on my Bronco. 18 Honda CRV, $220 off ebay with both plugs and master. Master should be 15/16" according to my research. I hope it is not too small a bore but I will install and see. My Bronco has 89 Dana 60 fronts in front and rear so the big 2 piston calipers all the way around.

It won't go on until after a Rubicon trip in July.

IMG_6499.jpeg
 
Outahand said:
Master should be 15/16" according to my research.
Click to expand...
That seems tiny for a modern car.

Rockauto says 63mm front pistons

I wonder if they make up for the size with a lower pedal ratio and more distance I can see how a long throw on a smaller cylinder would give better feel with an electric booster.
 
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Outahand said:
Thanks for this thread.

Picked one up to try on my Bronco. 18 Honda CRV, $220 off ebay with both plugs and master. Master should be 15/16" according to my research. I hope it is not too small a bore but I will install and see. My Bronco has 89 Dana 60 fronts in front and rear so the big 2 piston calipers all the way around.
Click to expand...
That looks like a Gen 1. Any reason for going for a Gen 1 vs. Gen 2?
 
Outahand said:
I think it is a Gen 2.

PN 46000-TLA-A051-M1

It has 2 plugs.
Click to expand...
Both generations have two plugs, the second generation has a rounder plug (reference first post in thread). Yours appears to be a 1st generation. That's not a bad thing per se, I don't think there's any issues with the 1st gen, just a slightly different configuration.
 
That is cool. The CAD picture made it look huge, but next to your cup, I am thinking that it might be small enough to fit on my EB firewall, without the crazy linkage/bracket.
 
ParadisePWoffrd said:
That is cool. The CAD picture made it look huge, but next to your cup, I am thinking that it might be small enough to fit on my EB firewall, without the crazy linkage/bracket.
Click to expand...
I agree. Super cool to be able to hold it in my hand. It weighs about the same as a full cup of coffee which will make it super easy to hold in place for mockup.
 
Dropped in the solid model to compare to the dual master Wilwood setup.
Its not that big. Do I want to get one, yes, do I have time, no.
BUT it looks like a bracket could be made that adapts an iBooster to the Wilwood bolt pattern, so some day in the future it can become a project.
IB001.jpg

IB002.jpg

IB003.jpg
 
This looks promising.

Looks about the same size as a dual diaphragm 9" booster most cars and 1/2 tons had.

I'm still running stock scout ii booster on 1 ton dually chev brakes up front (bendix single pots) 3/4 ton Eldorado in the back.

Tried 3 different masters and settle on the corvette 1.125" I still think they suck and you really need to put your foot into it.

Stock GM Hydroboost on the 1 tons was like a 1.375" master.

I even tried the RV dual Piston brakes up front but didn't care for em and gave em to the man building the bus near London, ON on here.


15/16 or 7/8" master seems small. Even my daytona has a 1" master for the big brakes from a 92 Daytona.
 
Kind of considering this vs. hydro boost. I know there's several ways I can do a hydro boost setup but I honestly don't have room unless it's a remote setup which I'd rather avoid. I currently have a hanging reverse mount Willwood setup with a 9-1 pedal and remote resi on a adjustable mount under my dash oh and a clutch pedal. Anyone configure one of these type pedals with a e-booster?

My brakes actually work pretty well, I'd just like a little less effort.
 
HYDRODYNAMIC said:
Dropped in the solid model to compare to the dual master Wilwood setup.
Its not that big. Do I want to get one, yes, do I have time, no.
BUT it looks like a bracket could be made that adapts an iBooster to the Wilwood bolt pattern, so some day in the future it can become a project.
IB001.jpg

IB002.jpg

IB003.jpg
Click to expand...
Damn you got some cankles bro
 
Been reading through this. I'll be looking for a gen 2. Have to figure out which vehicles to pick one from.
 
At some point it becomes too small.

Pedal throw becomes too long and pedal effort goes down thus making the pedal feel go to shit.
 
If you have the engine bay space I'd be tempted to rig up some sort of second class lever linkage and run a higher displacement master. Should be easier to tune by adjusting the pivot point.
 
Bebop said:
At some point it becomes too small.

Pedal throw becomes too long and pedal effort goes down thus making the pedal feel go to shit.
Click to expand...
Yep.
It seems that the general rule of thumb for stock 3/4 ton axles, a .750" master works and for 1 ton axles a .875" master works. From personal experience, this is the best I have managed on my axles but they still suck. I started out with dual 1.00" masters and I didn't have enough leg strength to get good braking.
 
Outahand said:
Thanks for this thread.

Picked one up to try on my Bronco. 18 Honda CRV, $220 off ebay with both plugs and master. Master should be 15/16" according to my research. I hope it is not too small a bore but I will install and see. My Bronco has 89 Dana 60 fronts in front and rear so the big 2 piston calipers all the way around.

It won't go on until after a Rubicon trip in July.

IMG_6499.jpeg
Click to expand...

Any updates Outahand
 
Tech Tim said:
Any updates Outahand
Click to expand...
Nope. Held it up there a couple times. Need to look again thinking about it without the Bronco angled mount as suggested several posts ago.

Too many projects ahead of this to even think about taking apart a perfectly good rig.

Rear toe rods and cradle bushing lockout kit for the Camaro

Front cover replacement on the GN

Same job on GN motor in my wagon.

So instead of working on anything I am going on a day trip cruise on the rubicon this weekend with my nephew :grinpimp:
 
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