Slimy38
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| posted on 17/7/13 at 09:19 PM |
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pedal box - floor mounted or not?
Having only ever driven tintops where the pedals pivot from above, is there a reason why the seven designs favour a floor mounted pedal box? What is
considered the best option, or is it just a personal preference?
I don't really intend to deviate from the Haynes book without good reason, I just wondered why it is how it is.
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RK
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| posted on 17/7/13 at 11:01 PM |
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I depends on how much room you have for the master cylinders.
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iank
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| posted on 17/7/13 at 11:44 PM |
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The normal reason given is a bottom hinged pedal works with the natural movement of your ankle rather than against it. Whether it makes any real
difference isn't clear (at least to me).
It also brings the weight lower in the car, but again the difference is going to be pretty marginal.
I've always felt the pedals in the book "look" a little flimsy, so it might be worth looking at the ones made from tube rather than
plate since they are going to be considerably stiffer (for a similar or lighter weight).
See http://vouchtroadster.blogspot.se/2012/05/pedalier1-pedal-box1.html for details.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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mark chandler
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| posted on 18/7/13 at 06:43 AM |
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I'd say personal preference.
I made mine hung from the top bulkhead tube
 
Steering and pedals 12 Feb 06
Not that clear in this picture, holes in the pedal arms have welded tubes, effectively made from off cuts but have served me well.
Regards Mark
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Slimy38
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| posted on 18/7/13 at 07:29 AM |
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quote:
Originally posted by iank
I've always felt the pedals in the book "look" a little flimsy, so it might be worth looking at the ones made from tube rather than
plate since they are going to be considerably stiffer (for a similar or lighter weight).
See http://vouchtroadster.blogspot.se/2012/05/pedalier1-pedal-box1.html for details.
That's very useful, thanks. I definitely like the idea of using existing lengths of tube rather than having to cut plates to suit.
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Dualist
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| posted on 18/7/13 at 05:18 PM |
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That box section pedal set up looks the mutts nuts and so much more up to the job.
Rotary build coming soon...
quote:
Originally posted by RichardK
I recently discovered that pigs can p i s s sideways when being transported 
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ElmrPhD
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| posted on 11/9/13 at 01:58 PM |
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I'm wishing that I had made, at least the accelerator/noise pedal hang from above, for heel-toe reasons. The other 2 don't matter, but I
think one can better "jab" the accelerator with their heel if the force vector isn't in line with the pivot point. But I'm no
expert, so I'm sure someone will point out why I'm wrong.
Steve, in the NLs
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loggyboy
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| posted on 11/9/13 at 02:19 PM |
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I quite like the Strikers system, which is top hung pedals, ala most tintops, but is done mainly due the cramped nature of the chassis, but works well
IMO.
Mistral Motorsport
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fimi7
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| posted on 13/9/13 at 07:04 PM |
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Floor mounted mine, primarily because love the setup and takes up less space.
Another big benefit is the lower center of gravity, anything you can keep low, keep low. Brake parts are not light when you consider all the pieces
all together.
--- Ali
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atomic
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| posted on 23/10/13 at 11:36 AM |
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If you do go with the floor mounted type you will most likely also want to fit some residual pressure valves in the lines, (2lbs. for discs and 10lbs.
for drums) as chances are your master cylinders will sit lower than your calipers.
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TimC
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| posted on 23/10/13 at 12:15 PM |
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The ergonomic argument has always struck me as a fallacy when most of us are using top-mounted pedals 99% of the time in our tin-tops. Floor mounted
(MK, MNR, Locost, Westfields) have always felt odd to me as a result. On the basis that I want my racecar to feel as natural as possible when I
jump-in after weeks away, I've therefore gone for a heavily modified Escort bias box.
With lightened pedals (drilled) it weighs next to nothing too.
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PhillipM
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| posted on 28/10/13 at 02:35 PM |
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I think the ergonomic arguement is wrong tbh, having had floor mounted pedal boxes, they're a pain in the arse, it's natural to apply
braking and clutch force with your knee, not you ankle, which has less power and less travel available, it makes it much less smooth.
The accelerator I can take or leave, but as someone said, it makes heel and toe a pain in the arse unless you physically lift your foot as you swing
it.
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