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  #1  
Old 10-03-2007, 03:10 PM
winmutt's Avatar
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Whats needed to mount these on a W123?

http://cgi.ebay.com/ebaymotors/Mercedes-190E-16V-2-6-2-3-EVOI-4-PERFORMANCE-CALIPERS_W0QQcmdZViewItemQQcategoryZ33563QQihZ011QQitemZ320165904474QQrdZ1QQsspagenameZWDVW

Any guesses?

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  #2  
Old 10-03-2007, 03:22 PM
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at a minimum, you are looking at different mouting brackets, different brake hoses, different rotor diameters and friction areas, different master cylinder, and different booster. I do ABS brake engineering for a living, and let me tell you that just swapping out the calipers is no small chore.
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  #3  
Old 10-03-2007, 03:24 PM
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you will probably need a proportioning valve as well to try and keep the current front to rear balance. Which will need to be tuned for your caliper displacements and master cylinder size
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  #4  
Old 10-03-2007, 03:32 PM
winmutt's Avatar
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Quote:
Originally Posted by TTCummins View Post
you will probably need a proportioning valve as well to try and keep the current front to rear balance. Which will need to be tuned for your caliper displacements and master cylinder size
Your taking all the fun out of this. I suppose I could get all these things from a junker 124. I really wonder how hard it is to do. It looks like this is the closest thing to more than one piston.

I think I will take a caliper (measuring kind) and see what can be found.
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  #5  
Old 10-03-2007, 06:18 PM
Craig
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Why do you want to do this?
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  #6  
Old 10-03-2007, 06:57 PM
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Quote:
Originally Posted by Craig View Post
Why do you want to do this?
Why would I want 4 pot brake calipers on my car? To stop faster of course.
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  #7  
Old 10-03-2007, 07:05 PM
t walgamuth's Avatar
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you can bolt up 126 fixed caliper brakes or probably 126 floating caliper off a coupe, both with the vented rotor. I doubt that these for a 124 will bolt on.

Anything more is probably overkill and will not decreases braking performance.

Tom W
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  #8  
Old 10-03-2007, 07:11 PM
Craig
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Originally Posted by winmutt View Post
Why would I want 4 pot brake calipers on my car? To stop faster of course.
I doubt you will gain anything, you can lock up the wheels on your W123 at will with the stock calipers. The calipers are not the limiting factor, the amount of rubber on the road is. I have never had my W123 brakes fade, have you? It is very unlikely you will end up with a net improvement in brake balance/performance.
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  #9  
Old 10-03-2007, 09:46 PM
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Quote:
Originally Posted by Craig View Post
The calipers are not the limiting factor, the amount of rubber on the road is.
The 9" wide tires are listed in my sig. I have plenty of contact patch. I have yet to break that patch. Next weekend is the first trip into the mountians. In spring I am going here :


Here is the elevation map.



I dont want to become one of these :

Quote:
2006 - Two deaths: One rider went off road and hit tree another low sided into an oncoming vehicle.
2005 - Three deaths: All three deaths involved failing to negociate corners - two went off the mountain and one slid into an oncoming vehicle.
2004 - Two deaths: Both deaths apparently caused by speed and then overbraking.
2003 - No deaths: There were several deaths in the surrounding area of the Dragon, but none that we know of on the 11 miles of the Dragon itself.
2002 - Two deaths: On June 16 a 29 year-old Dale Bently a Valkyrie rider from Michigan died on the Dragon. The rider was passing a car near the Horns of the Dragon when he wrecked and suffered fatal head injuries. The second death occurred on Sunday August 4 when Lendry R. Obanna Jr., 24, of Jacksonville, Florida, lost control of his 2000 Yamaha R6.
2001 - Two deaths: The entire Blount County (home of the Dragon) saw a total of four motorycle fatalities in 2001. The total includes the deaths of a 27-year-old Knoxville man who died March 10 in a collision on Old Knoxville Highway in Rockford, the May 5th death on the Dragon, the July 5th death of a 43-year-old Maryville man in an accident on Happy Valley Road, and the October 27th death on the Dragon.
2000 - One death: Blount County had four motorcycle deaths in 2000 including one fatality on the Dragon.
1999 - One death: Only one motorcycle death in 1999
1998 - No deaths: No fatal motorcycle crashes in 1998.
1997 - One death: A single motorcycle fatality is listed in 1997.
1996 - One death: A single motorcycle fatality in 1996.
1995 - Two deaths: In 1995, two men died in separate July 3 motorcycle crashes on the Dragon during the July 4 holiday weekend.
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  #10  
Old 10-03-2007, 10:19 PM
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hmm.. looking at the stories on the deaths, those are mostly caused by speeding or overzealousness. Just drive safe and at a speed you know you are in control of off the car. Dont drive too fast. Unless you want to feel like Takumi in Initial D on a mountain pass.

That way, you'd just to worry about all other vehicles around you that may lose control and hit you.

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  #11  
Old 10-03-2007, 10:30 PM
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Quote:
Originally Posted by redbaronph123 View Post
hmm.. looking at the stories on the deaths, those are mostly caused by speeding or overzealousness. Just drive safe and at a speed you know you are in control of off the car. Dont drive too fast. Unless you want to feel like Takumi in Initial D on a mountain pass.

That way, you'd just to worry about all other vehicles around you that may lose control and hit you.

Those are motorcycle deaths only. The totals are higher when cars are included. The point is I have larger than stock rubber and I need larger than stock brakes.
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  #12  
Old 10-03-2007, 10:44 PM
Craig
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Originally Posted by winmutt View Post
The 9" wide tires are listed in my sig. I have plenty of contact patch. I have yet to break that patch. Next weekend is the first trip into the mountians. In spring I am going here :
Have fun; but if you really want to play on the tail of the dragon, bring a sport bike not a 25 year old diesel sedan. Your brakes (if they are working correctly) will still not be the limiting factor, all you are going to do is mess up the front/rear balance by changing the calipers.

If you are saying you cannot lock the wheels on you W123 (even with wide tires) you need to repair you braking system, not try to re-engineer it. We have some little mountains here too, the stock brakes are more than adequate for that car.
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  #13  
Old 10-04-2007, 07:05 AM
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Quote:
Originally Posted by Craig View Post
If you are saying you cannot lock the wheels on you W123 (even with wide tires) you need to repair you braking system, not try to re-engineer it. We have some little mountains here too, the stock brakes are more than adequate for that car.
bah.
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  #14  
Old 10-04-2007, 01:47 PM
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if you really want to play on the tail of the dragon, bring a sport bike not a 25 year old diesel sedan.
I heard a rumor the other night that they're talking about putting speed bumps along the Dragon.
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  #15  
Old 10-04-2007, 02:04 PM
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I heard a rumor the other night that they're talking about putting speed bumps along the Dragon.
Thatd be more dangerous than just posting a cop at the top and bottom and measure time.

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