ok im building a low buck t bucket with a "56 235ci inline chevy and three speed.i want to use this pedal/master set up.it has a 8" rear with stock drums and the small metric speedway front disc set up.any body ever use these?the size is 7/8 bore for the brakes 3/4 for the clutch.my only real concern is that i have to share all four wheels with one master.what do you guys think?
People have safely driven BILLIONS of miles with single master cylinder brake systems. Independent dual master cylinders are _mostly_ for idiot-proofing m***-produced, ill-maintained cars... ...all IMHO, of course.... .
dont you have to figure the volume of the 2 front calipers, and the 2 rear brake cylinders and make sure it doesnt exceed the volume of the master cylinder?
that sure dont LOOK lowbuck to me! No reason to sweat the single MC... I'd use it if thats what i had. Just finished mine. Drums all the way round, just remember your residual pressure valves since it looks like thats an on the floor setup.
well,if the system is fully bled and the master cylinder is full i dont think it will empty the master when you press the pedal ,i mean your talking like several ounces of fluid moving in the system to take up the space of the moving disc brake cylinder (which barely moves) and the rear wheel cylinders.i think the master will be ok, just wonderin about the size of the bore.
its on top of the floor,and its only about 180.00 for the whole set up.there made for dune buggies ,so there pretty compact which is what i need on my t.
yeah, mines underneath and i used a cable clutch that i flipped so its down there too. i can sympathize with the lack of space inside. i'm 5'8" and i barely fit! i dont see anything wrong with the single MC. like the guy said, they used em from the factory for an awful long time p.s. that roadster looks great! mines a ****pile in comparison...but its a RUSTY ****pile.
The biggest concern is safety, the dual splits the system between front and rear. If there is ever a failure in the line you'll still have the front or rear.
It looks like it has a single master cylinder with a two compartment reservoir. That would work get, and if you think it will fit. Then I would go for it.
I've used a similar pedal setup in several race cars-no problems.Easy to change m/c bore size later if you want.T-bucket looks great,proportions right on with the inline 6.Alot farther along than mine.You mind telling me what your firewall to front crossmember measurment is?Thanks
ill check that measurement when i go to the shop tomorrow,i built the frame based off a total perf frame but i didnt like there 1 1/2 x 3 frame so i built mine from 2x3 .theres plenty of room in front of the motor,infact im gonna have to space the fan off the pulley about an inch to get it where i want it.ill get some pics of that too.
I just talked to eci hotrod brakes about my brakes which are metric gm on front and late model discs on the 8" rear. He said they normally recomment 7/8" master to get the pressure up to overcome the situation with those quick take up or whatever they call them calipers on the front. The stock application MC has a wider bore at the front then the rest is smaller to get them against the disc faster. I think your MC is probably a good size, I'm just not convinced your reservoir is big enough or you'll have enough pedal travel. That said, maybe cuz it weighs nothing everything will work great. I don't have actual experience with your setup so I'm just speculating aka talking out my *** so take it for what its wworth. That pedal ***sembly does look great.
it will stop a oval track car it will stop that little t but you have to ust a residual pressure valves
i used a single master with a 7/8 bore for my budget build t/modified, never drove it but i have ran the same on buggies and trucks and they have all worked fine
Here is the pedal I made out of a old wrench ... it had a lot of leverage (the longer the pedal the easier it will be to stop the car)<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>
If worst come to worst, does the manufacturer offer a 1" bore cyl? Personally, I'd expect it to be okay. But some random guy on the internet 'expects it's okay' really isn't a good safety factor for brakes.\ But don't worry, you'll save enough on spark plugs vs. a V8 that after a few tune ups, you'll have saved enough to pay for a master (if you even need it). Neat dune buggy... (trust me, that means something here on the HAMB) -Bill
OLDTOM the measurement from the 3 in tube that the spring mount is welded to ,to the firewall is 44 1/8 inches .i took some more pics after work today.im pretty comfy with the brake set up,so im gonna order it up ill post some pics of of when i get it.
Baloney.... Parts fail. Back up systems are there to keep you (and others) alive. Aircraft are religiously maintained yet often use doubled redundant systems for safety...but not because the pilot or Mechanic is an idiot. It's because **** happens. So your saying that driving on the road isn't as critical or life and death as flying a plane? Tell that to the driver who's running into a telephone pole at 60 mph or hitting a pedestrian because a $.02 rubber seal flipped over in his fruit jar... Today, single systems belong on vehicles that get limited use. For real world use you need to consider more than cool looks, and you need a good emergency brake as well. Half a brake system might not be very good compared to the full system, but it sure beats dragging your foot and blowing the horn. IMHO.
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