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#1
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Brake Pads
I've read some comments here about brake pads but doing a search, I'm not finding much.
I just put Wilwood D52s on and I realize that those calipers themselves aren't going to improve braking over stock. But the pads don't feel great. I haven't done a full force application yet but I've pressed hard enough that I think they should lock , but they don't. Of course, they wouldn't lock before either which is part of the reason I changed them. What are your favorite pads for street use?
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#2
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Are your front hoses new?
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#3
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Yep, I got the Wilwood braided steel hoses to replace the factory rubber.
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#4
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Talk with a Wilwood tech about brake pad compound choice.
https://wilwood.com/Pdf/Catalogs/BrakePadCatalog.pdf .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#5
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Quote:
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear https://youtube.com/shorts/gG15nb4FWeo?feature=share |
#6
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I use Hawk HPS pads on teh front of a 500+hp 72 firebird that runs low 11s with ease, stock rear drum. That car stops better than even my 81 t/a with 4 wheel disc & another brand of carbon fiber "performance" pads up front.
The 72 is mostly a street car and the hawk pads have very little dust and stop just as good when cold as hot, they act like OEM pads when cold or normal braking, but when needed they stop the car noticeably better than a mostly stock 4 wheel disc car. Very little or no noticeable rotor wear too. |
The Following User Says Thank You to 78w72 For This Useful Post: | ||
#7
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Quote:
Thanks
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"No replacement for displacement!" GTOAA--https://www.gtoaa.org/ |
#8
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This car stops so much better than my 81 4wheel disc car. The 81 turbo does mid 14's, (99% stock) have to use very firm pedal pressure to make the 2nd turn off on the track at upper 90's mph... the 500+hp firebird runs low 11's with ease averaging 119-123mph, I can make the first turn off with just mild brake pedal force, its amazing how well this car stops with stock rear drums. Can definitely tell the difference on the street too. Very impressed with the hawk pads, I was considering rear disc for this car but dont really feel the need to upgrade to rear discs, looking into larger drums &/or performancce shoes at this point. |
The Following User Says Thank You to 78w72 For This Useful Post: | ||
#9
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i use cheap organic d52 pads on the front of my 65 gto. such a massive improvement over the original front drums ...
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#10
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They will improve your stopping power a little. Larger piston surface area
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
#11
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You can use D153 pads. They use the same plate as the D52. Their application is light duty 3/4 ton pickups, 87 and earlier.
They have more friction area than the D52's. I always use semi-metallic pads, usually Wagner.
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1977 Black Trans Am 180 HP Auto, essentially base model T/A. I'm the original owner, purchased May 7, 1977. Shut it off Shut it off Buddy, I just shut your Prius down... |
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#12
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1. "D52" calipers can have several piston sizes. Depends on how the casting is machined. Bigger pistons = more clamping force per PSI of fluid pressure.
2. Seized, or semi-seized (sticky) pistons will reduce clamping force. There may be "zero" clamping force if the piston is seized totally. 3. About the same for seized mounting pins/sleeves. If the caliper can't float on the mounts, braking force is dramatically reduced. 4. LOOK at the pads/shoes you're considering buying. The "cold" and "hot" friction ratings are marked on the pads/shoes using a two-letter code. The farther down the alphabet you go, the more friction the pads have. "AA" would suck, "GG" isn't bad, and letters higher than "G" are pretty good. First letter is "cold" friction, second letter is "hot" friction. One photo attached. These shoes are "GG". Sometimes the friction rating is inked onto the friction material itself. |
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#13
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I put these Wilwood D52 callipers on my 71 Trans Am. They fit under 15" Ralley II rims with a little clearancing of the callipers. I didn't know this when I put them on so the wheels did the clearancing for me..
Anyway, I never even considered using the pads that came with. You can put D614 pads (I think Impalla SS or Malibu SS or something is the application). They're the biggest pads that fit a D52 calliper. Those Willwood D52 callipers come in "front" and "back" flavours. The "back" ones have smaller pistons. If you do the maths, even the "front" ones have less piston area than a stock calliper but then again they weigh less than half! I'm using EBC greens since I mostly daily drive but underwhelmed with them. Will probably use yellows when I replace the pads next. Sam
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-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#14
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Quote:
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1978 Black & Gold T/A [complete 70 Ram Air III (carb to pan) PQ and 12 bolt], fully loaded, deluxe, WS6, T-Top car - 1972 Formula 455HO Ram Air numbers matching Julep Green - 1971 T/A 455, 320 CFM Eheads, RP cam, Doug's headers, Fuel injection, TKX 5 Spd. 12 Bolt 3.73, 4 wheel disc. All A/C cars |
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#15
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I used the Wilwood brake pads and mine stops great.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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