the way that mine is: there is a F & R and each circuit goes to one end of the car, not across the car in an X pattern. -K --- Rob P <fristpenny@xxxxxxxxxxx> wrote: > I'm not brake engineer. The only non-factory brake > job I've ever done is to > switch to 11.75" Mopar rotors in place of the 10.87" > on one car. That won't > keep me from chiming in though. If you have the > brakes all together already > I'd drive it and see how it is. IF your problem is > that you are afraid of > the front overpowering the rears or vice versa, just > plumb an adjustable > proportioning valve. They are fairly cheap and easy > to do-not that I've > done one ;). I think the reason the factory did > one front and one rear per > mc chamber was because if you ended up with all > rears you could swap ends > when you tried to stop. This would still be > preferable to no brakes at all. > > I'm hope somebody that knows brakes will post a > better explanation and let > me know if I am all wrong. > > Rob > > >From: Kenyon Wills <imperialist1960@xxxxxxxxx> > >Reply-To: mailing-list@xxxxxxxxxxxxxxxx > >To: mailing-list@xxxxxxxxxxxxxxxx > >Subject: IML: Dual MC Conversion Logic Puzzle > >Date: Thu, 7 Apr 2005 09:19:42 -0700 (PDT) > > > >I did a conversion on my currently > unfinished/untested > >1960. > > > >I have been talking to Mark Lamp about his brake > >lockup problem on the phone and his problems now > have > >me questioning my setup. > > > >In general, I really abhor putting non-stock parts > >onto my cars. The 67-69 supra disc conversion is > the > >only one that seems to make sense. I do this > because > >I generally think that I'm not in the same position > to > >make intelligent design decisions as Chrysler > >Engineering was when the car was designed, and I > >really want the car to work durably and correctly > for > >the long term. > > > >On the other hand, the single master cylinder setup > on > >the older cars is admittedly not as safe in the > event > >of a failure, and I plan to drive the car quite a > bit, > >so decided to deviate from stock on this one item. > > > >So I violated my own rule of going stock and am now > >second-guessing myself, and here's why: > >================================================= > >I put a 1967-69 full-size Chrysler (Newport, etc.) > >Bendix Master Cylinder on and fabricated new brake > >lines and installed 100% new everything brake-wise. > > > >http://imperialclub.com/Yr/1960/Kenyon/Page09.htm > >Photo E = front brake > >Photo F = rear brake > > > >I roll the car out of the garage and down the > driveway > >and they work great for that, seem to be operating > on > >all 4, but they are untested in a driving situation > >(engine not done/installed yet). > > > > > > > >The 1967-69 cars had Bendix brakes. These have one > >two-piston wheel cylinder per wheel. > > > >===================================================== > >http://imperialclub.com/Yr/1964/FSM/html/05-002.htm > >http://imperialclub.com/Yr/1964/FSM/html/05-003.htm > >===================================================== > > > > > >The 1960 that the 67-69 MC is on has the older > Center > >Plane brakes that have TWO! single piston wheel > >cylinders on the front and one dual on the rear. > > > >====================================================== > >http://imperialclub.com/Repair/Lit/Master/138/page07.htm > >====================================================== > > > >The question that I have is: If there are two on > the > >front and one on the rear, is there a difference > from > >having one on each? (I don't think so?) > > > >Since the single piston ones on the front are > >functionally similar to having a dual, as there are > >still 2 pistons per corner that are similar (I > think) > >in size, shouldn't things be the same? > > > >This all comes down to measuring the diameter of > the > >1960 wheel cylinders and comparing them to the > >diameter of the 1967/69 cylinders, I suppose. > > > >The 1960 single MC Applies pressure to all 6 wheel > >cylinders equally. The 1967/69 applies pressure in > >either equal or unequal rates depending on whether > >those wheel cylinders are the same size. Since > they > >are Bendix, and the Bendix on my 1964 are the same, > I > >am leaping to the assumptive conclusion that the > 67-69 > >bendix are also the same inner diameter, front and > >rear. > > > >If all four 67-69 wheel cylinders are the same > inside > >diameter, and all 1960 wheel cylinders are the same > >inside diameter, and all have a total of 2 pistons > per > >wheel, they should operate the same, riiight? > > > >Lastly, the 1960 Wheel cylinders appear to have a > >larger diameter, so the same amount of pressure in > the > >line might move them fractionally less? Pedal > travel > >seems very acceptable, and I'm not bothered about > it > >so far. > > > >Did I mention that I absolutely hate math and > consider > >myself a marginal engineer? Now that I'm thinking > >about this, I'm fretting about it, despite having a > >car that's set up, done, and seems to work > >superficially. > > > >Will the 3 club members that are still awake after > >reading this offer a technical opinion? I'll > probably > >leave the stuff on there till I get to drive the > car, > >but would like to be mentally settled, so that's > why > >I'm asking. > > > >Kenyon Wills > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >----------------- http://www.imperialclub.com > ----------------- > >This message was sent to you by the Imperial > Mailing List. Please > >reply to mailing-list@xxxxxxxxxxxxxxxx and your > response will be > >shared with everyone. Private messages (and > attachments) for the > >Administrators should be sent to > webmaster@xxxxxxxxxxxxxxxx > >To UN-SUBSCRIBE, go to > http://imperialclub.com/unsubscribe.htm > > > > > > === message truncated === Kenyon Wills ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm