Pedal box adjustment mod ( if only)

Pedal box adjustment mod ( if only)

Author
Discussion

Snaaakeey

Original Poster:

144 posts

72 months

Thursday 6th May 2021
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Forgive the ramble as I'm quite bored at work today and in many ways this is a relatively pointless idea as I'm not sure many peddle boxes have very been adjusted from the standard position when they left the factory but...

I'm a little over 6ft tall and I have always wanted to move the peddle box away from me so my wrist can touch the top of the steering wheel and I can get into 3rd and 5th with out feeling like I'm being dragged of the gear stick when applying the "beans". When said position is achieved my legs are too bent up to heel toe comfortably so moving the peddle box away from me seems like a good idea.

Question: Has anyone DIYed this and if so would access to the chassis rail require a lift or would it be doable if bit cramped doing this on axel stands?

Any who..to the crux

Do any of you Mechanical genii think a kit placing the peddle box on a set of runners inside the footwell would be a good or even possible idea. This would allow freedom to adjust without getting the car up on a lift (like a modern sports car by god.....!). last I checked the job of adjusting drilling and bolting the pedal box to a new position wasn't a cheap one from one of the big 3. I know the requirement of such a kit is in some ways superfluous as people may think they would only use it once so just bolt it to the new position and have done with it but i like the idea!

The bonnet conversion was a great bit if kit ( 1st one i did) I think this would sell well too ( shame I don't have the fabrication skills required).

Well there you have it. Stupid post really but I'm bored!

What's your thoughts?



Edited by Snaaakeey on Thursday 6th May 14:33

spitfire4v8

3,992 posts

181 months

Thursday 6th May 2021
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You can go even further and do what marcos did with some of their models and have the peddle box moved by an electric motor from a switch under the dash!

CerbWill

670 posts

118 months

Friday 7th May 2021
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I moved the pedal box in our Tuscan asthere's 3 sets of holes in the chassis mounting plate for it. The Mrs is 5ft tall so I moved it to the rear set so she can drive it comfortably. I had to replace some of the bolts with new ones with an extra nut welded on the side of the head so you don't have to get a socket on them to tighten. Was as simple as taking the aluminium cover off the pedal box, removing the 4 nuts underneath, moving the box and bolting it back in. Simple, but rather fiddly.

TwinKam

2,980 posts

95 months

Friday 7th May 2021
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CerbWill said:
I moved the pedal box in our Tuscan asthere's 3 sets of holes in the chassis mounting plate for it. The Mrs is 5ft tall so I moved it to the rear set so she can drive it comfortably. I had to replace some of the bolts with new ones with an extra nut welded on the side of the head so you don't have to get a socket on them to tighten. Was as simple as taking the aluminium cover off the pedal box, removing the 4 nuts underneath, moving the box and bolting it back in. Simple, but rather fiddly.
...making you perfect candidates for an instantly adjustable set up idea

Earlier Marcoses (the svelte 6 cylinder ones of the 70's) had a manually adjustable pendulum pedal box, sliding on greased 1/2" rods, with a length of threaded rod extending rearwards under the dash to a hand-wheel within reach of the drivers right hand. A neat trick and maybe gives some ideas for how it could be done.
I'll bet they used exactly the same heavy iron-work just with the addition of a Granada window motor on the later ones that Jules recalls laugh

Basil Brush

5,083 posts

263 months

Friday 7th May 2021
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TwinKam said:
...making you perfect candidates for an instantly adjustable set up idea

Earlier Marcoses (the svelte 6 cylinder ones of the 70's) had a manually adjustable pendulum pedal box, sliding on greased 1/2" rods, with a length of threaded rod extending rearwards under the dash to a hand-wheel within reach of the drivers right hand. A neat trick and maybe gives some ideas for how it could be done.
I'll bet they used exactly the same heavy iron-work just with the addition of a Granada window motor on the later ones that Jules recalls laugh
I'd keep it factory looking and go with velcro.

Snaaakeey

Original Poster:

144 posts

72 months

Monday 10th May 2021
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I had a look at the peddle box at the weekend.

looks doable!

Not much room behind the box to move it back though. There is a load of copper plumbing back there which I think will yield but there is a large round black object bolted to the rear of the pedal box ( diaphragm housing for the break peddle?) which seems to have a pipe going straight back through the bulkhead. This hole assembly (pedal box and all) will move back and forth to the new positions with out additional jiggry pokery will it? I'm going to pull the bolts (which un-did beautifully) and renew and clean up the chassis plate the assembly bolts to.

Anyone moved it back to the rear most position before?

TwinKam

2,980 posts

95 months

Monday 10th May 2021
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Basil Brush said:
TwinKam said:
...making you perfect candidates for an instantly adjustable set up idea

Earlier Marcoses (the svelte 6 cylinder ones of the 70's) had a manually adjustable pendulum pedal box, sliding on greased 1/2" rods, with a length of threaded rod extending rearwards under the dash to a hand-wheel within reach of the drivers right hand. A neat trick and maybe gives some ideas for how it could be done.
I'll bet they used exactly the same heavy iron-work just with the addition of a Granada window motor on the later ones that Jules recalls laugh
I'd keep it factory looking and go with velcro.
WOT? No tywraps? tongue out

Basil Brush

5,083 posts

263 months

Monday 10th May 2021
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I think mine was on the middle setting (it's out of the car at the moment) but as you say, it's pretty tight behind it already.

If you wanted to make it easily adjustable it would need a couple of flexible lines to replace the copper clutch and brake lines from the master cylinders.

Snaaakeey

Original Poster:

144 posts

72 months

Monday 10th May 2021
quotequote all
Thanks baz.

I think I will be happy if I can just move it the once to the furthest rear position for now. I will get the bolts out this weekend and see if the the pedal box will move back far enough to align with the rear hole plates. Wouldn't make sense to have the holes pre drilled in the chassis plate and not be able to move the pedal box assembly back there but this is a TVR so we will see.