Well, we upgraded the brakes on the car with a better master cylinder. I got the "safety valve" below the master, and the line lock below that. Had to make several lines to up grade. I had a 0.920 bore master on the car but the pedal went 75% to the floor before hard braking. So, that came off and went with a 0.975 bore which brought it up to mid travel, which is pretty much normal for everybody's car.
I might add that there is so much mis-information about dual masters and how they work. Without that "valve", what ever you want to call it, you still have a single point complete failure of brakes. You have to have that valve to cut off the front/back, which ever has failed or leaks. AND, that only works when there is a relatively sharp change in pressure from front to back.
Lots of racers and street cars have a dual master thinking they have a "dual" system, but not without that valve.
What exactly is the mc for? What about the valve? I need to change the system on 65 Coronet!
I got to get back to you on the master. The valve is from a 74 Dart. The valves I will call reasonably universal if you get one for your system, drums back, discs front, or all disks.
Those masters from about late 70's to the 90's look ALL THE SAME. But the bore size is different, and the actual bore may also be different from what the parts book says. That .902 bore is stated as 7/8", but that does not translate over (.875). I think the .975 was listed as 15/16, but that doesn't translate exactly either.
What is a little surprising is the pedal travel change in the .073 bore size change.
Edit: O'reilly's part number NMC11257 and the same NMC1983. I believe this was from a Dodge Dynasty mid to late 80's. Bring your caliper when you go, manual brakes you want about an inch bore.
Hey, good for you Jerry! That power glide just might do you right.
Its funny, 'cause I remember back in the day a friend bought a nice used '66 Chevelle with a 396! He was all puffed up about it until asked what kind of tranny it had. Completely deflated, he said "powerglide". Course to the rest of us, it was a powerslip tranny. Funny how things completely change, eh?
So Jerry, what you are saying is that running Mopars in general, especially the Hemi cars, you are too excited running down the track, and need to shift one less time ? I remember the rage in Bracket racing many years ago was to run a Glide in any brand car plus put a 2 bbl carb on it. Maybe Damon could work his magic and cut your 8 barrels down to 2. Having run early 70's GM cars most of my life, I have popped a couple of brake lines, the valve is called a proportioning valve on them, and they do work, they will close off the leak side with a valve as soon as the pressure goes away, so you have front or rears, whichever, not real strong braking, but at least you have something. That is one awesome thing about us running on the big 1/4 mile tracks, plenty of shut down. I have also popped brake lines on big trucks that have a single master cylinder, you have absolutely nothing, except the emergency brake. Going to be a long time till the Nostalgia Rendezvous in May. Hopefully see some of the Victory Family at Clay and Rosie's Christmas Party December 1st.
Polarpirate, I (as you say) popped a valve on my son's beater truck when the front pad came out (yeah, how does that happen?). Ya got brakes, but very poor. On my signature street rod (since sold) I had a dual 68 Plymouth master, without a valve, that went to heck. And, no brakes. That is how I found out about "the valve". Did a lot of research since then.
There is a lot of street rods and racers out there with dual masters and no valves that just don't know. Which is why I brought it up.
Hi Tom, miss hanging out with you guys. I love harassing Jerry, all in fun, of course. Since we are on brakes, anybody out there that has older brake lines on their car, maybe should check the lines under holders/brackets, where dirt etc. collects. That is where I have seen leaks on almost every vehicle I had to replace a line on, they hold moisture and start pitting, then pop. Kind of like how body trim holds junk then rusts under the trim.
Working on a friends sure grip that turned out to be tore up, I found an interesting, yet worthless fact. The axle shaft spline and diameter is the same as the 727 output shaft spline.
Yes, interesting in that they have the commonality, yet worthless 'cause what does it get us? Carry on.
I have a picture of an axle gear on the output shaft, but can't load it due to web is full.
Hey Tom! 1st. off You going to be at Clay & Rosie get together? 2ndly Do you have an E/M address for All Balls Racing for the trunnion boot I'm needing a couple! See you in a couple of weeks hopefully! Steve
chaplainksw: Free camping sat night at WabashValley dragway. This is to create interest for next year and a Nostalgia weekend. See Wabash Valley Dragway sponsored by Your of Brazil on FaceBook!
Aug 10, 2021 15:03:52 GMT
chaplainksw: This Saturday is the Nitro in the Valley event at Terre Haute, Indiana. All Nostalgia Super Stocks are welcome, with no charge at the gate Sat. (Friday night test and tune
Aug 10, 2021 15:01:30 GMT
sportf: JB Cuda Yes, we have several members running hemis. BTW, I've never noticed this shout box before and I've been around a long time. Hope to see you at the track.
Mar 14, 2021 0:00:14 GMT
jbcuda: Hello super stock racers, I’m looking forward being part of the group,anyone running hemis?
Feb 26, 2021 15:10:59 GMT
rogerstanke1: Stanke Motorsports is proud to announce the launching of our new Mobile Friendly/Shopping Cart web site: www.stankemotorsports.com. Our new siste allows you to view and purchase our items directly on line. Thanks for your interest.
Apr 8, 2020 17:18:50 GMT
bosspete: On behalf of "Just in Time Racing".we'd like to wish everyone in the Victory Family a Very Merry Christmas and a Happy New Year.Stay well and safe.. Look forward to first race of the 2020 season.Take Care All. BossPete.
Dec 25, 2019 19:48:11 GMT
bosspete: As the new year approaches,,it would be really nice to see more of our cars lettered up to present that Nostalgic race look from years ago.I think that we have more fun and present a better nostalgic product than any other group I've ever seen in the past.
Oct 21, 2019 17:03:05 GMT
Hollywood: A show of hands please, how many subscribe to Hemmings Muscle Machines? What are your thoughts about the Magazine? Like it? Don't like it? if you do like, what do like about it? Don't like it?
Sept 1, 2019 17:28:04 GMT
sportf: Hey BossPete, I agree with you. We are racers second, friends and a true gang first. See you all soon.
Aug 17, 2019 13:43:10 GMT
bosspete: Hey,,everyone,,,Victory is here because of all of you. Victory would not be without you. Us old guys have finally found a place to race the cars we love,,and have fun doing it. No nitrous,no big Egos,,just a driver and his car. Cordova Awaits us.
Aug 9, 2019 23:45:02 GMT
moparsteve: George & Susi I posted the get together at Rons this weekend It has the address and phone number if you need directions!
Mar 13, 2019 14:01:55 GMT
maxattac: We'll be there Friday and Saturday nights! Thanks!
Aug 10, 2018 20:13:40 GMT
moparsteve: Damon, Didn't get a message!
Feb 4, 2018 21:07:15 GMT
Hollywood: Hey Detroitman what kind of Mopar do you need that 489 case and gear for? I might have what your looking for.
Oct 21, 2017 17:31:39 GMT
detroitman: 8 3/4" pig assembly must be 489 case with tapered pinion, need to have 4.88 or 5.13 ratio with a spool. Or ill buy just the gears.
Oct 11, 2017 1:16:38 GMT
polarapirate: Hello fellow Victory racers, doe's anyone have a 440 good to go, maybe 500hp, you want to sell reasonable. My 440 is in poor shape. Hoping to be ready for August Gateway. Thank's !! George
Jul 13, 2017 12:29:17 GMT
polarapirate: Great racing with you guys for the first time, and thanks to everyone for the underhood help Friday night, Tom, Tommy, Stanley, and others !!!!!!!!!!!!!!!!!!!!!!!!!!!!
May 14, 2017 18:05:49 GMT
Hollywood: A tip of the cap to Tommy Morgan, Tommy thank you for your generosity and thoughtfulness.
May 8, 2017 11:41:02 GMT