67dartgtgo
Well-Known Member
Hi gang, have a 67 dart gt original 273 car with 360/300 in it. Here's the story. Piece mealed parts in stages due to bugdeting, lol. Originally had 4 wheel drum manuals. First change was power booster and new master cylinder, 7" dual diphragm 1 1/8 bore, while keeping the drums all around. Braking improved but still needed a very heavy foot to come to a complete stop.
Secondly wanted to keep small ball joint upper CA's and convert to front discs with large bolt pattern, so purchased an 11" disc brake at the wheels kit from SSBC. It installed fairly easily even though the instructions weren't the best. Installed an adjustable proportioning valve downstream of the metering block in the single rear brake line. Adjusted many times with no change. Bleeding was difficult as well with an extremely hard pedal while bleeding the rears.
The problem: Holy cow, fronts do grab some but braking is pretty terrible. Peddle is very hard but will stop the car with some needed distance. Definitely not drivable as is.
The breakdown:
21" of vacuum at the booster.
1 1/8" bore power MC from NELCOs Hotrods.
SSBC 11" rotors.
SSBC 4 piston calipers.
Aftermarket adjustable proportioning valve.
Bled brakes the traditional way, starting with the furthest away rear.
Any thoughts would be great.
Secondly wanted to keep small ball joint upper CA's and convert to front discs with large bolt pattern, so purchased an 11" disc brake at the wheels kit from SSBC. It installed fairly easily even though the instructions weren't the best. Installed an adjustable proportioning valve downstream of the metering block in the single rear brake line. Adjusted many times with no change. Bleeding was difficult as well with an extremely hard pedal while bleeding the rears.
The problem: Holy cow, fronts do grab some but braking is pretty terrible. Peddle is very hard but will stop the car with some needed distance. Definitely not drivable as is.
The breakdown:
21" of vacuum at the booster.
1 1/8" bore power MC from NELCOs Hotrods.
SSBC 11" rotors.
SSBC 4 piston calipers.
Aftermarket adjustable proportioning valve.
Bled brakes the traditional way, starting with the furthest away rear.
Any thoughts would be great.