Pedal placement
#2617533
02/05/19 10:57 PM
02/05/19 10:57 PM
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Joined: Feb 2009
Posts: 773 Crofton, Ky.
rattler
OP
super stock
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OP
super stock
Joined: Feb 2009
Posts: 773
Crofton, Ky.
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I have a new project that will be my next big build. It's a 35 Plymouth coupe. Plan is to use my 512 stroker motor, and maybe a 4 speed. Question is, is it better to mount the pedals under the dash, or up through the floor? Will up through the floor cause me trouble with exhaust and such? Thoughts?
1957 Dodge truck, Snakeskin Green with a little stroker motor. 1964 Plymouth Savoy wagon ( my new project)
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Re: Pedal placement
[Re: rattler]
#2617570
02/05/19 11:59 PM
02/05/19 11:59 PM
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Joined: Jan 2003
Posts: 10,486 Freeport IL USA
poorboy
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,486
Freeport IL USA
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A 35 Plymouth has a pretty narrow firewall. A power brake booster takes up a lot of space on a firewall, and will want to occupy some space the motor will want to occupy. I would recommend against using the small diameters brake boosters, I've not heard of many that did not experience issues with the small diameter boosters. If you can get by with a non-power brake master, that frees up a lot of firewall space, and I would want the master mounted on the firewall rather then under the floor. Installing 3 pedals between the trans tunnel, around the steering column, and keeping everything inside of the body at the firewall can add a lot of interesting challenges to the deal. Hopefully the 512 is offset towards the passenger side, and you have small feet.
Under the floor master cylinders require the pressure valves, which are not usually a big deal, just something else that could cause problems down the road. I don't like the master under the floor, they are a pita to fill. You are also limited to pedal position by the frame location, exhaust, and clutch linkage. There are some advantages, with the proper brackets, you can move the master towards the rear of the car more, and also closer to the frame rails, which may help with exhaust clutch linkage, and starter clearance.
I much prefer to hang the pedals off the firewall, but that might be just me. Gene
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Re: Pedal placement
[Re: poorboy]
#2618065
02/07/19 12:21 AM
02/07/19 12:21 AM
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Joined: Feb 2009
Posts: 773 Crofton, Ky.
rattler
OP
super stock
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OP
super stock
Joined: Feb 2009
Posts: 773
Crofton, Ky.
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Thanks Gene. No power brakes on this one. That motor doesn't pull enough vacuum.I'll probably go with a hydraulic throwout bearing too. That will help with the linkage issues.
1957 Dodge truck, Snakeskin Green with a little stroker motor. 1964 Plymouth Savoy wagon ( my new project)
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Re: Pedal placement
[Re: wannadrag]
#2686370
08/10/19 10:13 PM
08/10/19 10:13 PM
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Joined: Jan 2003
Posts: 7,471 Minnesota
Hemi_Joel
master
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master
Joined: Jan 2003
Posts: 7,471
Minnesota
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On my 31 Plymouth coupe, I used a Wilwood triple master race car setup that hangs under the dash, but keeps everything out of the way under the dash. One master is for the clutch, one is for the front brakes and one for the rear. It has an adjustable balance bar between the 2 brake master cylinders to mechanically adjust front/rear brake bias. I like it. FOr the gas, I used a '64 Buick Riviera setup that has a nifty little firewall pass thru for the throttle arm. I cut it down to fit as needed, and welded a little foot pad on it. Very simple, compact and reliable.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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