Lotusmark2
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| posted on 28/1/05 at 04:30 PM |
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go long
can anyone think of any major issues with adding around 16" into the cockpit and another 4" into the engine bay (around 4-6" wider
aswell)
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ned
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| posted on 28/1/05 at 04:31 PM |
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are the bigger mcsorley plans no good then?
Ned.
beware, I've got yellow skin
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Lotusmark2
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| posted on 28/1/05 at 04:32 PM |
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nope even the biggest ones are not even close
To give you an idea even the Viento is not long enough in the cockpit.
[Edited on 28/1/05 by Lotusmark2]
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Stu16v
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| posted on 28/1/05 at 05:03 PM |
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16"???
I've gotta ask: Why? That is a lot of extra legroom. A standard chassis will accomodate 6'+ folk with careful postioning...
A couple of minus points I can think of...
1. I think you will seriously consider extra bracing, and/or 'up' the material spec for a car of these dimensions.
2. It is likely to look well out of proportion.
3. It is going to be very long. If you do need to trailer it, you might struggle finding one the car will actually fit on - lentgh wise, and to a
lesser extent, width wise.
HTH Stu.
Dont just build it.....make it!
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Lotusmark2
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| posted on 28/1/05 at 05:11 PM |
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Main problem is that I am 6ft 8" tall with very long legs and as an American football player I also have a 50" chest
[Edited on 28/1/05 by Lotusmark2]
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Dale
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| posted on 28/1/05 at 05:28 PM |
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You will lose a fair bit of the nimbleness of a seven--- I added 4 in the cockpit and 4 in the engine bay and somemore at front to have a narrow rad
shroud--not quite sevenish-- I have a 108 inch wheelbase,which I think suits the design I went with but would look a bit silly on a standard seven.
Balance is pretty good so far front to back and will end up a bit rear heavy. Extra triangulation on the sides was used and I am going to bring the
scuttly back in a curve to the side rail to shorten the cabin look.
btw 245lbs and 6"4
Dale
[Edited on 28/1/05 by Dale]
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James
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| posted on 28/1/05 at 06:06 PM |
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quote:
Originally posted by Lotusmark2
Main brobel is that I am 6ft 8" tall with very long legs and as an American football player I also have a 50" chest
Locostbuilders... the land of giants!
For some reason there's a way higher than average height on this forum!
Mark,
As a guide:
I'm 6'3" tall. (short for this forum!  )
My cockpit is 10% longer than standard. IIRC that's *about* 6" longer.
I mounted my seat last night. Bearing in mind most of my height is in my legs and the seats are quite thick (Cobra Clubmans) there is atleast
8" of space between the back of the seat and the rear bulkhead.
What I'm saying is- you really don't need to add as much as 16" to the car!
Also, I wouldn't go wider than +4". It just gets too hard sorting bodywork.
HTH,
James
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Lotusmark2
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| posted on 28/1/05 at 06:10 PM |
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Just did the old sit against the wall and get measured trick, with my back against the wall it is 59" to the balls of my feet.
Have a compare
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James
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| posted on 28/1/05 at 06:14 PM |
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quote:
Originally posted by Lotusmark2
Just did the old sit against the wall and get measured trick, with my back against the wall it is 59" to the balls of my feet.
Have a compare
I'm glad you added the "of my feet" to that! 
Will compare when I get home.
Anyway (seeing as you're far enough away not to pull my arms off) how come you're playing a batty game like American football when
there's proper games like Rugby around?
James
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Lotusmark2
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| posted on 28/1/05 at 06:20 PM |
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Played rugby for many years (including the Gloucestershire second team). Just fancied a bit more violence and trust me you get that in American
football
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Stu16v
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| posted on 28/1/05 at 06:48 PM |
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quote:
Just did the old sit against the wall and get measured trick, with my back against the wall it is 59" to the balls of my feet.
Have a compare
Do remember that you should allow for a slight bend in the legs for driving.
I have just measured my legs as you describe...46"! OK, so I have a low centre of gravity. But, I actually shortened my chassis by three inches
after sitting in a 'standard' chassis, and not being anywhere near the pedals. My seat is quite a well padded item, which is mounted
(seated position) approx three inches from the rear bulkhead. This wasnt my plan; that was to have bare seat shells, but the seats turned up cheap.
However, I am still sat comfortably (albeit with fairly bent legs).
So 46"+3"+3"= 53".
At a guesstimate, I reckon an extra 6 - 8" *should* accomodate you, with careful choice of seats, and thought given to the positioning of the
pedals, steering wheel, and seat (angling the base/back can help). Making the seat an integral part of the chassis as a lot of cars of this type still
do.
Of course, all the above might be sh!te. Have you sat in a Velocity and tried it for size?
Dont just build it.....make it!
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chunkielad
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| posted on 28/1/05 at 06:49 PM |
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What do you Sothern Girls know about rugby? It's Union down there!!!
I've played both League and Union (League professionally) and I assure you League is a harder game. You bunch of Southern Pansies!!!
Anyway after meeting Mark, I can see what he's saying!! I felt like a dwarf at 5'10"!!! I'm 16.5 stone and he made me look
positively Ethiopian!!
I'm still not sure those measurements aren't overkill though mate!!
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Liam
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| posted on 28/1/05 at 06:49 PM |
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Odd... my 6'7" mate could just about drive my standard car sitting on a custom really thin backed seat, with the pedals adjusted right to
the end of the footwells. A plus 6 long and plus 4 wide would give him acres of space! May sound stupid, but, you are meant to bend your knees
Having said that 59" sounds massive! Have you actually sat in a viento then?
Glad i'm a short arse,
Liam
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Lotusmark2
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| posted on 28/1/05 at 06:53 PM |
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Yep sat in the Viento at Stoneleigh and if you removed the pedal box I fitted fine but not with the pedals in place
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Stu16v
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| posted on 28/1/05 at 07:06 PM |
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Hand controls?
Dont just build it.....make it!
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Lotusmark2
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| posted on 28/1/05 at 07:10 PM |
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You'll be suggesting amputation next
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DorsetStrider
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| posted on 28/1/05 at 08:58 PM |
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OH MY GOD!!!!!
Ok I feel tiny now..... I'm not quite 5'9"!
Pursonally I think it's just selfish of you guys hogging all the height!
Who the f**K tightened this up!
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David Jenkins
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| posted on 28/1/05 at 09:27 PM |
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My trouble is that I'm too short for my weight...
DJ
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albertz
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| posted on 28/1/05 at 09:41 PM |
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I am 6'5" and can/do fit in a standard chassis with a Baby Cub seat, fair enough i need a tiny Momo flat bottomed wheel.
If i was building again (which the wife tells me i am not) then i would build slightly larger just for the extra comfort. But then i suppose comfort
doesn't really come into it too much.
Each to their own and all that, but +16" seems a lot.
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dblissett
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| posted on 28/1/05 at 09:58 PM |
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pluss 4
i have built a mcsorley 442 i am 6 1 and fit with loads of space behind the seat
my brother inlaw is 6 5" and he fits in with room behind the seats
my seats are cobra clubman do you fit in the seats to start with if so i will measure the leg room with the seat right back
please remember that if you go to wide what back axel or diff will you get thats wide enough i think 46" wide is about the max for a sierra
back end
finaly do your feet fit in a standard 13" high chassis or will the extra 2" height of a 442 get your feet in
cheers dave
[Edited on 28/1/05 by dblissett]
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Peteff
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| posted on 28/1/05 at 10:46 PM |
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QE 2 or what?
You'll have to find a different axle for a +6" build and 20" longer overall is going to add complications unless you upgrade some of
the tubes and add bracing. Build it, try it, then cut a foot out of it. It's the only way you're going to find out.
Stu, So 46"+3"+3"= 53". Almost .
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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mangogrooveworkshop
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| posted on 28/1/05 at 11:59 PM |
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Keep it the MAC sizes and move the rear bulk head rearwards.
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krlthms
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| posted on 29/1/05 at 12:03 AM |
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quote:
Originally posted by Lotusmark2
Main problem is that I am 6ft 8" tall with very long legs and as an American football player I also have a 50" chest
[Edited on 28/1/05 by Lotusmark2]
Your chest is not a problem since sevenesques are below-the-waist affairs, so no bodywork will get in the way of your upper body. However, you may
also want to expand the chassis in the vertical direction, because otherwise you may have problems sliding under the steering wheel/scuttle (a quick
release wheel would help). Also, recently someone on this forum mentioned that you could tilt the seat back 20 degrees or so, resulting in more kink
at the knees. Apparently this is quite comfortable driving position, and would save some distance.
All this notwithstanding, you want to build a car that you can get out of in in a few seconds in an emergency. This, to mind, is just an important
consideration as your comfort while driving normally. Besides, "comfort" is a very relative thing when sevensques are concerned.
Cheers
KT
[Edited on 29/1/05 by krlthms]
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Lotusmark2
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| posted on 29/1/05 at 05:25 AM |
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I think I am going to grab some wood this weekend an mock up drivers side cockpit so I can really see what I would need. Can anyone with floor mounted
pedals have a measure for me to see how much room I need to allow for them.
Cheers
Mark
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907
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| posted on 29/1/05 at 08:39 AM |
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Hi,
Here's how I did mine.
I cut a large square hole in the panel on the end of the footwell and mounted a removeable box in it.
On this box I mounted the master cylinders. The clutch required a different depth box to the brake,
hence the step in the back of the box. The back of the pedals, when fully depressed, go into the box.
I gain a couple of inches by doing this, without an increase in chassis length.
They feel OK when I opperate them.
I hope this helps
Paul G
 
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