'65 Front brakes - bigger rotors or better pads?
Hey guys. I am working on my braking system here in MN and need some advice. I will start by telling you what my current setup is.
front disc/rear drum setup, manual brakes:
Raybestos MC-36440 - new in Feb. '16
SSBC prop. valve - new in Feb. '16
Front brake hoses - new in Feb. '16
K-H front calipers - new in March '15
Hawk HPS front pads - new in April '14
Rear drums & Porterfield R4-S shoes (all drum internals also new) - new in Feb '16
10 lb residual valve in rear brake line - new in Feb '16
I have been trying to get the car to stop better and made a fair improvement last spring with the new rear drums & porterfield shoes. Before I adjusted the prop valve I was able to lock up the rear brakes but have NEVER been able to lock up the fronts. It's not that I need to be able to lock up the front brakes, the car just doesn't stop that well.
About a 2 weeks ago I ordered a SSBC brake pressure gauge kit to check what I was generating on the front calipers.
I was able to get 1000-1300 psi on both sides depending on how much I pushed the pedal. From what I have read, this is normal/adequate.
Before I installed the Hawk pads I took the rotors to a machine shop to get turned but they were too thin and at the time I didn't want to buy new rotors/bearings/races so I installed the new pads with the old rotors. I cleaned up the old rotors and sanded them down lightly but now I am thinking that maybe they were glazed enough that the new pads didn't quite bed in properly.
My wheels are large and fairly heavy (17" diameter - 22lbs each) and I am trying to decide if I should upgrade to larger rotors or go with a higher friction pad and new rotors with my stock calipers.
From all the posts I have read the K-H calipers are a good braking setup. I have never been impressed with the Hawk pads but maybe this was a glazed rotor problem and not a pad problem. Either way, if I stick with the K-H calipers I will most likely be switching to an EBC pad. I really don't want to buy new stock rotors and new pads only to find out that my large wheels are the problem and I still need larger rotors to make a difference.
I have been looking at the Mustang steve bracket kits and if I knew the 13.2" kit would fit inside my wheels I would probably go that route. If they don't fit I would be using a 12.5" rotor which I believe is only about 1 inch larger than the stock rotors...not a huge improvement in my opinion.
Do you guys think new stock rotors with EBC pads and my K-H calipers will get the fronts to lock with my wheels? Anyone out there running similar size/weight wheels with the K-H calipers? Thanks for taking the time to share your input.
1965 A code Fastback, C4 to T5 conversion, Arning drop, 3.55 rear differential, 17" wheels, 3G alternator conversion, CAA Perfect Fit Elite A/C
Daily Driver: 2015 F-150 XLT crew cab EcoBoost
Former Fords: 1972 F-100 390, 1988 Escort GT, 1992 F-150 XLT reg. cab 5.0, 2001 F-150 XLT supercab 5.4, 2003 F-350 XLT Diesel crew cab 6.0, 2005 F-150 XLT crew cab 5.4, 2013 F-150 5.0