Manual Brake Conversion ????
Furthermore every car (even if you narrowed it down to just an LS1) will not need the same setup as weight distribution, brakes used, tires used suspension as well as many other criteria will change the demands of the brake system. Fluid pressure on the master cylinder is approximately equal, pressures are different between ports.
For the each car to be setup correctly is about as likely as you hitting the lottery. A proportioning valve is not necessary but if you want to take advantage of utilizing your brakes to the fullest, then I would never suggest using a kit without one.
When your brake bias is not set correctly, the car will not stop as short as it could in a controlled straight manner. The object is to have all four wheels lock around the same time during threshold situations. This does not mean stomping on the brakes....as you'll generally always lock all four wheels.
All of our kits are designed with a proportioning valve for the above reasons. If you're running a strange manual master cylinder kit like BMR or others offer, we have a specific manual master ABS delete kit that is designed to work with those master cylinders.
Steve
Mechanical Engineer
SJM


