rawalnut Posted February 21, 2012 Report Share Posted February 21, 2012 I may add disc brakes later but for now I want to add a dual reservoir master cylinder for the added safety. I had a total brake failure once many years ago and I have decided it need nver happen again. Has anyone just replaced the master cylinder with some commom readily available master cylinder? I have read most of the other postings and did not figure out the answer to my question. Thanks, Bob Quote Link to comment Share on other sites More sharing options...
Rusty O'Toole Posted February 21, 2012 Report Share Posted February 21, 2012 One problem on your car is that the brake pedal pivots on the master cylinder itself. One solution I saw, was to leave the original master cylinder in place and mount a new one behind it, with a long rod through the old master cylinder to the new one. This required making a bracket for the new cylinder but was a simple solution. Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 21, 2012 Report Share Posted February 21, 2012 What postings did you read. Was this one of them? http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=22469 Quote Link to comment Share on other sites More sharing options...
Chester Brzostowski Posted February 23, 2012 Report Share Posted February 23, 2012 I would very much like to do this also. I was also trying to keep my front drum brakes but the systems out there are mostly sold along with the front disk setup. I think using drums or disks will affect which master is used. I had a setup on order and cancelled it after reading Don’s horror story. Needless to say I still want to upgrade for safety reasons so I will also do the front disks at the same time. If you come across any proven kits please drop me a line. Chet… Quote Link to comment Share on other sites More sharing options...
Robert Horne Posted February 23, 2012 Report Share Posted February 23, 2012 I may add disc brakes later but for now I want to add a dual reservoir master cylinder for the added safety. I had a total brake failure once many years ago and I have decided it need nver happen again. Has anyone just replaced the master cylinder with some commom readily available master cylinder? I have read most of the other postings and did not figure out the answer to my question.Thanks, Bob On my 48/49 Dodge, I used a new Mustang II MC, $20. Was an easy install, making a bracket of angle iron to add to the original Mc. Added a 9" rod to go through the original MC. The shoes, wheel cylinders, etc, are stock.. Brakes have been working good... There are several threads on here, where people have done something similar.. Quote Link to comment Share on other sites More sharing options...
norville Posted February 23, 2012 Report Share Posted February 23, 2012 I just did a ton of searching on this topic. I have a 51 and originally planned on doing what Bob did above. then I found this site that sells Brake Mast brackets. for $21 And just weld it to the frame and core out the original master. https://www.welderseries.com/blog/online-store/master-cylinder-bracket-2-2/ after thinking it over and calling ECI I went with their bracket and master setup. I had read of installation issues but talking with the guy he said they solved all that and designed a new bracket for the later cars. Quote Link to comment Share on other sites More sharing options...
Kirby D34 Posted February 23, 2012 Report Share Posted February 23, 2012 I used the ECI bracket, bolted in, moved the brake pedal to right about 1/2 inch, I have 50 Dodge 318 904 trans. Kirby 1 Quote Link to comment Share on other sites More sharing options...
greg g Posted February 23, 2012 Report Share Posted February 23, 2012 There is still the standby of gutting the stock MC, lengthening the actuator rod passig it through the orig MC and mounting the new one to the frame to the rear of the stock one. Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 23, 2012 Report Share Posted February 23, 2012 after thinking it over and calling ECI I went with their bracket and master setup. I had read of installation issues but talking with the guy he said they solved all that and designed a new bracket for the later cars. Please post the details of your install. I am interested in what problems they solved. Quote Link to comment Share on other sites More sharing options...
norville Posted February 23, 2012 Report Share Posted February 23, 2012 Please post the details of your install. I am interested in what problems they solved. According to the guy on the phone, they made a new pivot for the separate brake and clutch style of my car and they notched the bracket to work with the fluid drive (manual) for the dodge. Quote Link to comment Share on other sites More sharing options...
rawalnut Posted February 23, 2012 Author Report Share Posted February 23, 2012 Butch's makes a pedal set up and master with 7 inch power brake unit anyone used one ? Quote Link to comment Share on other sites More sharing options...
Chester Brzostowski Posted February 24, 2012 Report Share Posted February 24, 2012 (edited) after thinking it over and calling ECI I went with their bracket and master setup. I had read of installation issues but talking with the guy he said they solved all that and designed a new bracket for the later cars. Are you also using their disk brake kit. They told me that you can't have a dual master and the old drum brakes. Also I believe the stock rims don't work with their setup. I have a 48 P15. 15" wheels. My suspension is a little higher in the rear then the front so maybe 16” in the front. Doesn’t the 46/47 have 16” rims ? Chet... Edited February 24, 2012 by Chester Brzostowski Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 24, 2012 Report Share Posted February 24, 2012 I just did a ton of searching on this topic. after thinking it over and calling ECI I went with their bracket and master setup. I had read of installation issues but talking with the guy he said they solved all that and designed a new bracket for the later cars. That is all well and good. But did they solve the no pedal stop problem? Did they solve the side to side pedal slop issue or did they tell you that the side play is acceptable? Did they solve the master cylinder issue when using stock drum brakes? Did they tell you that you will have to buy special fittings to connect your brake lines? I hope you dont have to go through what I did to make there setup work. Quote Link to comment Share on other sites More sharing options...
norville Posted February 24, 2012 Report Share Posted February 24, 2012 That is all well and good. But did they solve the no pedal stop problem? Did they solve the side to side pedal slop issue or did they tell you that the side play is acceptable? Did they solve the master cylinder issue when using stock drum brakes? Did they tell you that you will have to buy special fittings to connect your brake lines? I hope you dont have to go through what I did to make there setup work. Don, I read through the issues you had , before I install anything I'll be checking it over carefully. They did ask if I was still using Drum/ Drum and provided me with a residual valve. Also the told me the outlets will be facing the tranny. Quote Link to comment Share on other sites More sharing options...
Chester Brzostowski Posted February 24, 2012 Report Share Posted February 24, 2012 That's funny. I spoke with ECI today and they told me they didn't have a dual master setup for the stock P15 hydraulic system. This was the same info I got from them while Don was trying to get his setup working. Maybe they have it for the 51 but the P15 has 6 drum cylinders and they said they have not found a compatible duel master to work with this 6 cyl setup in the P15. Chet.... Quote Link to comment Share on other sites More sharing options...
Young Ed Posted February 24, 2012 Report Share Posted February 24, 2012 51s have that same 6cyl setup. Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 24, 2012 Report Share Posted February 24, 2012 Don, I read through the issues you had , before I install anything I'll be checking it over carefully. They did ask if I was still using Drum/ Drum and provided me with a residual valve. Also the told me the outlets will be facing the tranny. Great! Glad to hear it! Please post your observations after you check it over carefully. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted February 24, 2012 Report Share Posted February 24, 2012 Don..it is customer feedback from observant installers that force them to offer a better kit to survive amongst the competition..am sure after the input from you the master was looked at a bit deeper.. Quote Link to comment Share on other sites More sharing options...
Robert Horne Posted February 24, 2012 Report Share Posted February 24, 2012 There is still the standby of gutting the stock MC, lengthening the actuator rod passig it through the orig MC and mounting the new one to the frame to the rear of the stock one. I lengthened the rod to about 9 inch. 1 Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted February 24, 2012 Report Share Posted February 24, 2012 Don..it is customer feedback from observant installers that force them to offer a better kit to survive amongst the competition..am sure after the input from you the master was looked at a bit deeper.. I agree on the feedback issue. However they never once told me they would look into the problems I had. They did tell me the pedal side to side slop was normal and that without it the pedal would bind once some dirt built up in the crack. Made me feel as if they were not listening to what I was telling them. Once I completed the modifications there product does work well. Quote Link to comment Share on other sites More sharing options...
littlemo Posted February 24, 2012 Report Share Posted February 24, 2012 Don C.; I was reconsidering the direction I went with the "add-on" new MC in my P-15, and was thinking about ordering a new ECI setup; now I'm reconsidering my reconsidering ?? Cass, alias littlemo... Quote Link to comment Share on other sites More sharing options...
jeff0547 Posted February 25, 2012 Report Share Posted February 25, 2012 Here's a link to what FalconVan did. Check with him to find out how it turned out. http://www430.pair.com/p15d24/mopar_forum/showpost.php?p=269805&postcount=59 Quote Link to comment Share on other sites More sharing options...
james49ply Posted February 26, 2012 Report Share Posted February 26, 2012 I cannot take credit for this, found this on an earlier thread that someone did to thier car, I am planning on doing the same to mine, looks like it will work great without haveing to remake the pedal support. Quote Link to comment Share on other sites More sharing options...
chopt50wgn Posted February 26, 2012 Report Share Posted February 26, 2012 When using a disc/drum setup, the M/C should have a larger bore for the volume needed for discs. A proportioning valve should also be used along with a 2 lb residual inline valve. Quote Link to comment Share on other sites More sharing options...
littlemo Posted February 26, 2012 Report Share Posted February 26, 2012 James49ply: There have been several postings on this type of MC upgrade; most I have read as well as my own "new" MC installation had one main drawback; the filler cap of the new MC was above the floor level, centered in front of the front seat. This then requires a "cover" which results in a raised "lump" in the front floorboard !!!( see my and several other threads ) Cass, alias littlemo... Add: Maybe we can get falconvan to "mass-produce" that new bracket??? Quote Link to comment Share on other sites More sharing options...
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