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Common to delete brake booster?

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Old Jan 25, 2021 | 04:12 PM
  #1  
Kyle Lopes's Avatar
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Default Common to delete brake booster?

Curious to know if people delete their brake boosters to road race their cars as im looking to do the same. Any pro/cons in doing so? Thank you.
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Old Jan 26, 2021 | 05:17 AM
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Default Re: Common to delete brake booster?

Getting ready to convert to manual on my car, I hate the feel of the stock booster. I'm using the Honed delete kit and a 7/8" Civic master cylinder.

I did it previously on a road race e30. Once you get the right sized master and use an aggressive pad, it's not bad at all.
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Old Feb 23, 2021 | 09:18 AM
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Default Re: Common to delete brake booster?

Id like to hear more feedback on this.

Im really tempted to try the Honed setup on my CRX. I love how manual brakes feel on race cars, but Ive never run something this heavy with manual brakes.

Anybody try to retrofit a bias bar setup?
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Old Feb 25, 2021 | 09:07 PM
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Default Re: Common to delete brake booster?

This is a cool setup that was around for a hot minute. Could be easily reproduced:

https://honda-tech.com/forums/suspen...l-box-3283125/

There are also some options out of the UK, for rally cars, that replace the booster with a balance bar. No need to figure out a floor mount setup that way.

The beauty of the Honed kit is that everything but the booster remains original. I'm tempted to do one on the daily. No one but me drives it anyway.
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Old Mar 3, 2021 | 12:09 PM
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Default Re: Common to delete brake booster?

Not "common" because of rules in "common" race classes not allowing removal of it.

but now with time trials/time attack being popular with open rules and just the larger popularity of tracking a car, its becoming more popular, along with off the shelf solutions to remove it.

and i hate to say, the hard parking, engine bay dress up crowd is also contributing to making booster deletes more popular.

i would entertain the idea just to try myself, too.
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Old Mar 3, 2021 | 12:41 PM
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Default Re: Common to delete brake booster?

Originally Posted by Tyson
and i hate to say, the hard parking, engine bay dress up crowd is also contributing to making booster deletes more popular.
I suspect that almost every single brake booster delete kit installed is for the purpose of having a "clean bay". Not that it doesnt serve a purpose, but I think that is why most people are doing it.

Personally, I like the idea of using a bias bar or at least an OEM type master so you have 2 circuits. At least there is some tiny chance of keeping some braking ability when losing one circuit. The single circuit little masters certainly look nice, but it would be a really bad day if a brake line/hose failed.
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Old Mar 10, 2021 | 10:20 AM
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Default Re: Common to delete brake booster?

So we ran the Honed delete kit and 7/8" master over the weekend in our Prelude racer. Because someone on the team doesn't know how to shift gears I didn't get to drive it, but I think the consensus is that while the stopping power is there, the pedal is a little too long. I'm going to try the 1" MC that came off the car and see how that feels. @Tim2179 may be able to chime in, but he was so busy passing cars at high rates of speed I'm not sure he even used the brakes.
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Old Mar 10, 2021 | 12:09 PM
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Default Re: Common to delete brake booster?

Originally Posted by ross2004
So we ran the Honed delete kit and 7/8" master over the weekend in our Prelude racer. Because someone on the team doesn't know how to shift gears I didn't get to drive it, but I think the consensus is that while the stopping power is there, the pedal is a little too long. I'm going to try the 1" MC that came off the car and see how that feels. @Tim2179 may be able to chime in, but he was so busy passing cars at high rates of speed I'm not sure he even used the brakes.
The pedal travel was longer compared to what it had been but once I was in the car turning laps I quickly got accustomed to it. The brake pressure was firm, smooth and predictable. Previous race in December without the mod, we experienced frequent rear lock up, but didn't experience any rear lock up this past weekend. So no cons from me. One driver did mentioned that it was more difficult to heel and toe due to the longer travel, but that's not something I do, so can't comment there.
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Old Mar 10, 2021 | 12:25 PM
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Default Re: Common to delete brake booster?

You didn't lock the rears this time because I took the pads out.
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Old Mar 10, 2021 | 12:32 PM
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Default Re: Common to delete brake booster?

Originally Posted by ross2004
You didn't lock the rears this time because I took the pads out.

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Old Mar 10, 2021 | 04:50 PM
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Default Re: Common to delete brake booster?

hahaha^^^
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