Stock Discs vs. Baer

1966conv · Oct 28, 2004

A huge amount of info in this thread, most of it is great info, but for the different type car/driver.
I have 4 different V8 cars that all started out with manual drums and have no comparison to the oem discs.

No. 1: I kept stock 4 drums, I really only drive it to shows on a sunny day.
No. 2: I went with the aftermarket Wilwood front disc and dual master cylinder. (much improvement but still wouldn't want to go open tracking with it)
No. 3: Baer Serious Street discs, This is a daily driver and occasional open track fun car. Much improvement over the Wilwoods and no comparison at all to the drums.
No. 4: This is the setup Kelsey Hayes 4 piston, with Coleman 12 x 1 1/4" rotors on Wilwood hats on 70 spindles with a 66 lincoln dual MC. Basically the same as Cobra Automotives $$$ setup. This will be used on an open track car.

Your usage should determine the application. Anything is better than the drums and only goes uphill. The questions I have is what is the availability of Mustang oem disc brake (caliper) parts. I've heard they're hard to find. Do the MC upgrade and when the calipers crap out then see whats available as their might be something better yet then.

gp001 · Oct 28, 2004

BAD67FUN said:
OH MY GOSH!!! I feel like such a VICTIM!!

I've been betrayed and bamboozled into thinking my Baer brakes are nothing but bling bling and just not worth it. Ha Ha....

I wouldn't say bamboozled. Baer, as does almost every other aftermarket manufacturer, even says this on their website

http://baer.com/Support/FAQ.aspx#1

http://wilwood.com/Centers/Information/Pages/faqs.asp#question7

You get less performance and less longevity with crossdrilled/slotted. It's just a fact. For performance stick with the plain, old solid rotor.

BAD67FUN · Oct 28, 2004

My last name isn't Andretti or Foyt... I'll never know how much performance or longevity I'd miss by going with cross drilled as opposed to solid.

So give me the cool looking ones....

gp001 said:
I wouldn't say bamboozled. Baer, as does almost every other aftermarket manufacturer, even says this on their website

http://baer.com/Support/FAQ.aspx#1

http://wilwood.com/Centers/Information/Pages/faqs.asp#question7

You get less performance and less longevity with crossdrilled/slotted. It's just a fact. For performance stick with the plain, old solid rotor.

The Dan · Oct 28, 2004

FINALLY...I posted a controversial thread!!!

Thanks to everyone here as always. So, looks like a dual master cylinder and SS lines and I'll be set. The stock breaks are fine, even with the fruit jar I can easily lock the front tires up on 15" Goodyear Nascar Eagles. But, like I said, with the addition of the new engine mods, I want some insurance on the breaks, i.e. dual master cylinder as a fail safe. Last thing I want to feel is the floorboard when I hit the break pedal at 90mph coming off the freeway!

I can do the swap with the lines and all for about $200. No comparision to the Baer kit $$$. Not to mention I'm running styled steel wheels, which means you'll never see the rotors anyways, so looks are not a concern...yet anyways. 17's someday...maybe?

jaredgoodwin · Oct 28, 2004

I have 1977 Granada disc and stock rear drums (power). Work great, good enough I don't need to spend $$$ to get some bling bling brakes. Save your money for something you need...

DarkBuddha · Oct 28, 2004

gp001 said:
For performance stick with the plain, old solid rotor.

You mean plain, old vented rotors, right?

Great68 · Oct 28, 2004

2nd Mustang said:
Your MC to booster push rod might need adjustment.

How do I go about doing that?

Hack · Oct 28, 2004

The Dan said:
I can easily lock the front tires up on 15" Goodyear Nascar Eagles.

Very good. You've hit on the key point here. If you can lock up the tire, more brake won't help. If you use the brakes a lot during a race or something, get fade and can still lock them - you have a huge safety margin.

gp001 · Oct 28, 2004

BAD67FUN said:
My last name isn't Andretti or Foyt... I'll never know how much performance or longevity I'd miss by going with cross drilled as opposed to solid.

So give me the cool looking ones....

And there is absolutely nothing wrong with that. I just wanted other people in the thread who may not know this to be aware. We all spend $$ on things that may have more asthetic value than performance.

gp001 · Oct 28, 2004

DarkBuddha said:
You mean plain, old vented rotors, right?

Solid surface, but you knew that Do they even sell just "solid core" rotors? Aren't all of them vented/vaned ?

DarkBuddha · Oct 28, 2004

gp001 said:
Solid surface, but you knew that Do they even sell just "solid core" rotors? Aren't all of them vented/vaned ?

I knew you knew what you meant. I think you're right about our vintage cars having rotors that are vented/vaned. But I've been under plenty of imports and late model cars with plain unvented completely solid rotors. I think this is why a lot of late model cars and imports suffer from warped rotors so often. My brother's '98 SHO had solid rotors and habitually warped the rotors once a year. Expensive.

HistoricMustang · Oct 28, 2004

Cold water on hot disc is what usually results in warping. Vented or non-vented.

HistoricMustang
www.historicmustang.com

Billgear · Oct 28, 2004

The stock setup works pretty good on the street, the addition of the SS lines should help firm up the braking. A dual master would be a big plus also. The baers sure do look cool though! (notice no slots of holes)

65fsbkhipo · Oct 28, 2004

HistoricMustang said:
Cold water on hot disc is what usually results in warping. Vented or non-vented.

HistoricMustang
www.historicmustang.com

Worn shocks is the main culprit for warping dics...

Snail50 · Oct 29, 2004

I went from 4 whl drums to 4 whl Baer discs, and the difference is mucho.

66P51GT · Oct 29, 2004

No. 4: This is the setup Kelsey Hayes 4 piston, with Coleman 12 x 1 1/4" rotors on Wilwood hats on 70 spindles with a 66 lincoln dual MC. Basically the same as Cobra Automotives $$$ setup. This will be used on an open track car.

Do you happen to have part numbers for the Calipers, Rotors, and Hats?

Route666 · Oct 29, 2004

gp001 said:
Solid surface, but you knew that Do they even sell just "solid core" rotors? Aren't all of them vented/vaned ?

Just to add a bit more, my little car has about 10" solid rotors on front, drums on back. I haven't had problems with warping, etc. They're like motorcycle rotors, not vented, but not as thick as vented car rotors. Drag racing can benefit from slightly smaller, solid rotors, as they're good enough for one hard stop, and are rather light. Especially the ceramic or whatever ones you can get.

66HertzClone · Oct 29, 2004

65fsbkhipo said:
Worn shocks is the main culprit for warping dics...

Maybe you could explain the relationship between worn shocks and warped rotors for me? I had always thought that overheated rotors, dragging calipers, or a "left foot braker" were the primary cause of warped rotors. My daily driver Audi with 45k miles has had the front and rear rotors replaced but the shocks (struts) have yet to be replaced. I guess it is time to have those replaced?

65fsbkhipo · Oct 29, 2004

Most people believe that the shock absorber or struts are designed to dampen the bumps in the road. Generally speaking, they are. But more specifically, they are designed to keep the tires on the road. That downward force reduces wheel hop and other attributes associated with tire rotation. This downward force holds the tire to the road and reduces vibration. This same vibration has a major impact while braking. Think about it, your disks are rotating several hundred times a minute, your going over uneven terrain, during braking your disks are being heated by the pads. These pads heat the disks mainly at the point of contact. With the added vibration allowed by weak shocks they will tend to warp. Ask any skilled mechanic.

mdjay · Oct 30, 2004

I think there is a clear difference between cross drilling and slotting the rotors. The cross drilling is just aesthetic and as said, if anything, it hinders overall performance and shorten the life of the brake pads and rotors. (I also agree on the looks). The slotting on the other hand is more performance oriented and will help to reduce brake fade for performance applications. Normal street cars should use normal street brakes...

Stock Discs vs. Baer

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