![]() OKAY I WANT MANUAL BRAKES AND A 6:1 PEDAL RATIO! This just simply doesn’t work for most Road Race, Rally, or Drift chassis…which is why under dash manual pedal boxes from companies like Tilton or Wilwood exist. This works fine on everyday drivers around town barely paying attention ands wanting to put the least amount of effort in. With vacuum assisted brakes we’ve all experienced it…one push is one level of braking and the next is entirely different. When you’re going 100+mph into your braking zone lap after lap…the braking experience MUST be the same. Power brakes are inconsistent, especially under boost. With the stiffer slightly more leg pressure 80-100% braking, this allows us some forgiveness in not locking up the front brakes and easier modulation in the opposite foot used to controlled modulation. As well, left foot braking is more common…your left foot isn’t used to braking and is often done on the fly as a correction. If we take the same turn 10 times, we may only hit the foot brake half the time. We’re always making tiny on-the-fly adjustments. Manual brakes are also great in Drift and Rally environments where nearly every turn has a different entry angle and speed, it’s a far less calculated motorsport. This is massively to our benefit in finding the right leg force every time. YES the 80-100% zone is a little more leg effort than power brakes but that’s what makes it so great. Maybe your buddy did X and Y on the track with it but thats anecdotal info. Finding the exact level of leg pressure to get that exact threshold is just not possible with power brakes, they’re too inconsistent.especially with boost. The modulation of max braking before lockup is where manual brakes really thrive. ![]() WHY MANUAL BRAKES ARE GOODĪ proper manual brake setup (matched ratio with MC bore size, good pad compound, and Front / Rear Bias Adjustment) is the exact same braking every time. ![]() The difference in those setups from just slapping a big master cylinder on a plate and calling it a day, is they use pedal boxes with a 6:1 ratio. The FACT is, the fastest road race cars in the world have manual brakes. That translates to less leg effort and more braking power while keeping a similar throw distance.Įven after all of our sales and reviews, every single day numerous times a day, we get asked “ what are manual brakes like?” and sometimes followed up with “ my buddy said they suck!”. This is great because it allows you to have a better braking feel and more force to the calipers with equal or lesser force at the pedal. This means we can use a larger 1 inch master cylinder with more fluid being pushed per mm of piston movement inside. The improved motorsport pedal ratio gives you a better mechanical advantage with additional leverage. The OE pedal ratio can only leverage so much, so we’re limited to a 3/4 or smaller master cylinder. The pedal ratio is the distance from the top swinging axis to the brake foot pad divided by the distance from the top swinging axis to the master cylinder clevis mounting point.Ĭhanging the pedal ratio to 6:1 is a major function and feel upgrade to allow the use of a larger master cylinder. ![]() Where our Booster Delete could be improved upon it's a single piston design and its working with the stock 3.5:1 to 4.5:1 pedal ratio (depending on the chassis). In the last 10 years we have sold over 15,000 Brake Booster Deletes (Single Piston) and have thousands of positive reviews. Forget everything you've heard about manual brakes, forget everything you know about master cylinders and boosters all together. ![]()
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