Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

anyone here crash on the way to irwindale last night?

Old 09-04-2009, 09:00 PM
  #11  
Starfury
6th Gear Member
 
Starfury's Avatar
 
Join Date: Aug 2007
Location: Elk Grove, CA
Posts: 5,896
Default

I beg to differ. My factory drums worked fine at stopping the vehicle. I don't think the discs work much better as far as stopping distance.

The problem with them is that they don't stop straight.
Starfury is offline  
Old 09-04-2009, 09:04 PM
  #12  
67mustang302
6th Gear Member
 
67mustang302's Avatar
 
Join Date: Apr 2007
Location: California
Posts: 10,468
Default

Try making the first turnout at the drag strip here from 110mph. Drums will fade out before you ever get under 50mph. It's not that drums don't work, they just suck at heat dissipation. In really hot climates and highway speed they get hot and don't work as well. Stopping hard, especially a heavy vehicle, puts a lot of heat into the brakes. Especially if you're going down a hill.
67mustang302 is offline  
Old 09-05-2009, 03:21 PM
  #13  
trashline
2nd Gear Member
 
trashline's Avatar
 
Join Date: Jan 2008
Location: PA
Posts: 201
Default

when I daily drove my 66 for about 3 years I had 4 wheel drum, I will admit stopping straight was a pain but I always spent alot of time adjusting. I never did get them perfect.

Responding from home to the firehouse sucked in that car, I would be able to stop from home using the trans/ clutch down shift from 3rd to 2nd at about 60-70 mph, it would lock the back wheels up and make them chirp haha, and give me enough stopping/slowing down power to make a reasonable stop in the parking lot. If i came from a distance further then home (which was about .7 miles) and thru any light or traffic that forced me to slow down I could not stop worth a crap even using the trans, and would have to brake earlier down the road. It is not a fun feeling when you have to shut the car off and use the clutch to stop the car just before hitting a light pole or building.
trashline is offline  
Old 09-05-2009, 03:26 PM
  #14  
cprstreetmachines
4th Gear Member
 
cprstreetmachines's Avatar
 
Join Date: Aug 2007
Location: Socal
Posts: 1,235
Default

Originally Posted by 67mustang302
Try making the first turnout at the drag strip here from 110mph. Drums will fade out before you ever get under 50mph. It's not that drums don't work, they just suck at heat dissipation. In really hot climates and highway speed they get hot and don't work as well. Stopping hard, especially a heavy vehicle, puts a lot of heat into the brakes. Especially if you're going down a hill.
yuuuup. Used to stop down with the 8 second cars trying not to over heat them. lol And in bad climate weather, look out for puddles. Then they really pull.
cprstreetmachines is offline  
Old 09-05-2009, 06:41 PM
  #15  
HGC
4th Gear Member
 
HGC's Avatar
 
Join Date: Oct 2007
Location: Central Illinois
Posts: 1,751
Default

As long as you know how to drive with them there is nothing wrong with drum brakes. I don't drive my 65 over 70 MPH so fade is not much of a problem for me. I know what you're thinking...and no, even though I am 58 I don't drive like an old man wearing a hat. I had the 05 Mustang up to 120 last week. But back to the point, rain won't affect drums that much. Driving through standing water can cause them to lose a lot of stopping power briefly, but as long as you know how to dry them out that is not much of an issue either. In fact, with the right technique you can prevent the standing water from causing a problem in the first place. I drove a 67 Buick LeSabre down Pikes Peak with manual drums without a problem, and that car only had one low gear (yep, an automatic with just D and L) which would not allow me to use the engine for braking.
HGC is offline  
Old 09-05-2009, 10:43 PM
  #16  
gothand
5th Gear Member
 
gothand's Avatar
 
Join Date: Nov 2006
Location: North Fulton, GA
Posts: 2,287
Default

Originally Posted by 67mustang302
Which is why you leave distance, so you have time to react to sudden events. You should have at LEAST 3 seconds following distance, 5-6 gives you a better margin, most people have less than 2.
Don't know what time this accident took place, but it is pretty darn hard to keep that much space on the 605. Not saying that it isn't a good idea, but that freeway gets pretty congested, even by L.A. standards (I worked on the HOV lane addition design in the early 90's).
gothand is offline  
Old 09-05-2009, 10:49 PM
  #17  
JMD
6th Gear Member
 
JMD's Avatar
 
Join Date: Jan 2007
Location: AR
Posts: 5,469
Default

IDK,,, I think drums kind of get a bad rap, especially as they relate to daily drivers, the drums in my heavy *** Lincoln (4300 lbs + driver) stop the car pretty damn good. (good enough to lock all 4 wheels at will)

OVER 99% of big trucks built even today will still have drums. (Disk brakes have been available for a long time)

Drum brakes have their good points as well as their weak points...
JMD is offline  
Old 09-05-2009, 11:19 PM
  #18  
Canary94GT
4th Gear Member
 
Canary94GT's Avatar
 
Join Date: Aug 2008
Location: Seattle, WA
Posts: 1,233
Default

I've never really worked on brakes before, but I have a 94 Mustang as a daily driver and a 65 with manuals drums and, after driving both, I just couldn't see why people gave drum brakes such a bad rep.

But I didn't know or think about the braking *straight* thing. It does seem like there is a little more "looseness" when stopping the 65, but it is nothing I would consider unsafe under normal conditions.
Canary94GT is offline  
Old 09-06-2009, 12:10 AM
  #19  
67mustang302
6th Gear Member
 
67mustang302's Avatar
 
Join Date: Apr 2007
Location: California
Posts: 10,468
Default

Drum brakes have a real hard time in performance applications. They're used a lot on big trucks because they're much cheaper than discs that large. But, that has it's price, around here there are numerous trucks that burn down every year when the brakes catch fire trying to keep from going out of control down long grades...though a lot of that is just bad truck driving as well, starting out too fast at the top of the hill. Trucks with smoke pouring off their brakes barreling down Hwy 58 is a very common(several times a day) occurrence around here.

Disc brakes are just way more reliable though, they don't have nearly as many things that can go wrong that drums do.
67mustang302 is offline  
Old 09-06-2009, 01:26 AM
  #20  
Carlos Pineiro
3rd Gear Member
 
Carlos Pineiro's Avatar
 
Join Date: Jul 2008
Location: Santa Monica, Calif.
Posts: 958
Default

Drum brakes are simply not as efficient as discs. Also, drums will not apply even pressure they way discs do so with real hard braking the car gets squirrelly.

I have both, and so far, I have successfully stopped my car many times.

CP
Carlos Pineiro is offline  

Thread Tools
Search this Thread
Quick Reply: anyone here crash on the way to irwindale last night?



All times are GMT -5. The time now is 09:22 PM.