NEW SEVEN Design Proposal

NEW SEVEN Design Proposal

Author
Discussion

fuoriserie

Original Poster:

4,560 posts

276 months

Wednesday 11th May 2005
quotequote all
I just thought of showing you my two design proposals for a modern day seven update.

I would like to hear your feedback on the design direction I'm taking, and if it has potential

www.fuoriseriedesign.com

thanks guys

cheers
Italo

Incorrigible

13,668 posts

268 months

Wednesday 11th May 2005
quotequote all
Hi Italo

I saw your sketches on the kit car thread, good job

I can't see how you can compete on weight and/or chassis stifness with the more intersting front end. You may fall foul of some SVA regs with the lights like that too

Have you got any calculations FEA etc ?? I'm currently getting some ideas together for a design of my own track day special so it would be interesting to compare notes

Ben

fuoriserie

Original Poster:

4,560 posts

276 months

Wednesday 11th May 2005
quotequote all
Hi Ben

I do have other renderings with SVA abiding front lights, and they are not the ones you see in some of those renderings.....

I'm in the process of deciding if I will be building a prototype or not, but it all depends on the feedback I get on these designs, and if its worth spending all that money.!!!!.

Cheers
Italo

Incorrigible

13,668 posts

268 months

Wednesday 11th May 2005
quotequote all
Likewise

My design would involve me building all the suspension from scratch, which would be a bloody pain if it didn't work as intended.

I'm trying to source hubs, brakes etc from a current design. There's quite a lot out there that would do the job

Any Idea what you're going to base yours on ?

Incorrigible

13,668 posts

268 months

Wednesday 11th May 2005
quotequote all
Likewise

My design would involve me building all the suspension from scratch, which would be a bloody pain if it didn't work as intended.

I'm trying to source hubs, brakes etc from a current design. There's quite a lot out there that would do the job

Any Idea what you're going to base yours on ?

fuoriserie

Original Poster:

4,560 posts

276 months

Thursday 12th May 2005
quotequote all
My designs were based an the new Caterham svr, using that as a design parameter, but if you wanted, you could use any other seven replica chassis.......

I wouldn't design a new chassis because it would be more expensive to manufacture, but instead take an exhisting chassis and then place on top my new body design.

It's already expensive just to make new moulds for the new bodywork, I wouldn't want to get into designing a new chassis when I could find a decent one in the specialist car industry.

Maybe it will not have all your design specifications, but it won't cost you money,time, hassles and other to see the finished project through.
This could also turn out to be so expensive if you are not careful when planning....


Cheers
Italo

Incorrigible

13,668 posts

268 months

Thursday 12th May 2005
quotequote all
The trouble is my chassis design is quite different to anything else currently on the market

I've built and repaired quite a few cars from different states of completion and disrepair, even made the odd fibreglass buck and I don't see how the designs are going to work out that expensive. Time consuming yes

Likewise with the chassis

>> a load of mile steel and ally is going to cost a lot less than a Caterham Chassis

>> Edited by Incorrigible on Thursday 12th May 10:05

DustyC

12,820 posts

261 months

Thursday 12th May 2005
quotequote all
Great designs, love em.

Look forward to seeing yours too Ben. How's the Acadmey going?

Incorrigible

13,668 posts

268 months

Thursday 12th May 2005
quotequote all
DustyC said:
Great designs, love em.

Look forward to seeing yours too Ben. How's the Acadmey going?
There's a thread on this very page matey

5th after one event, next one 4th June @ Goodwood

DustyC

12,820 posts

261 months

Thursday 12th May 2005
quotequote all
Not on PH so much now (apart from the odd stress reliving arguement!) so didnt see it.

I'll see you at GW in June then. Doing a sprint there myself soon. I'll try not to damage anything before you get there!

Neezer

391 posts

235 months

Thursday 12th May 2005
quotequote all
Think they look brilliant!

groomi

9,323 posts

250 months

Thursday 12th May 2005
quotequote all
Nice looking concepts.

I think the glass roof idea is good, don't know why nobody has developed a hard-top for the existing 7 - surely there's a market out there?

You're windscreen looks a bit dangerous though. The top is too close to the occupants heads. I suggest you move the whole windscreen forwards - keep the top in the same place as the production windscreen and move the bottom forwards to get the required angle.

Good luck with the project!

chimburt

751 posts

266 months

Thursday 12th May 2005
quotequote all
without wanting to start a fight, and without denigrating your work ( looks really nice - you have a good hand ), there's something of the Atom in there?

Eric Mc

122,855 posts

272 months

Friday 13th May 2005
quotequote all
Hard tops have BEEN designed for Sevens in the past. On one occasion it was just to ensure the car qualified as a GT for a race series.

On the whole they just look awkward and ugly. Most Seven drivers are loathe to put the hood on, let alone a hard top.

fuoriserie

Original Poster:

4,560 posts

276 months

Friday 13th May 2005
quotequote all
Thanks for your feedback guys

Groomi
I agree with your point, in fact in my side view renderings,(not shown for the moment) I've done just what you reccomend, the windscreen is pushed forward and more angled.

The only problem is finding the right windscreen with the same curvature. The idea was to have an off the shelf Lancia Stratos replica windscreen, but I'm not sure it would fit the chassis, I will have to do my homework on this one......

On the Atom, yes I like the Ariel Atom concept and foresee an evolution of my seven concepts in that direction for the future...

A motorbike on wheels for the track, but with some weather protection.
So if you spotted some influence it was deliberate and will be more so in my other future concepts.

Very good points taken, I need your constructive critisism to improve the design

Cheers
Italo

DustyC

12,820 posts

261 months

Friday 13th May 2005
quotequote all
Eric Mc said:
Hard tops have BEEN designed for Sevens in the past. On one occasion it was just to ensure the car qualified as a GT for a race series.

On the whole they just look awkward and ugly. Most Seven drivers are loathe to put the hood on, let alone a hard top.


Good point but if the choice of a well designed car with a roof like this was around then I reckon it may sway people when trying to decide between a Caterham or a "practical" Elise (or similar).

mechsympathy

54,248 posts

262 months

Friday 13th May 2005
quotequote all
DustyC said:

Good point but if the choice of a well designed car with a roof like this was around then I reckon it may sway people when trying to decide between a Caterham or a "practical" Elise (or similar).


The problem (IMO) is as much the noise as the look. Even the soft hood keeps much more transmission noise in. So you'd probably have to add sound proofing, and therefore even more weight. And then doors that fit.

DustyC

12,820 posts

261 months

Friday 13th May 2005
quotequote all
Ah, never thought of that. Haven't driven one with the roof on.

Perhaps THE hardcore car should never have praticallity built in.

Plus I bet most people would still drive it without the roof to save weight!


Just realised, is that roof all glass? Thats gonna be pretty heavy. And if its perspex will it not scratch easy?

mechsympathy

54,248 posts

262 months

Friday 13th May 2005
quotequote all
DustyC said:
Haven't driven one with the roof on.


It's not nice. Especially if it's raining so hard water is getting in over the top of the screen (And around the doors:shiver: )


As an aside IIRC the Atom's chassis is steel, is it not? How much does it weigh? And how much does a 340R (I assume they're ali?) weigh? Am I right in thinking an Elise is about 750-800kg?

There must be weight savings available using an ali space frame.

And another thought, how about putting a sliding perspex dome (flatter than, but similar to a fighter aircraft) on an Atom. With perspex sides on the frame. They must have enough torque with the supercharger that the weight wouldn't be noticeable. That would make one hell of a daily driver.

chimburt

751 posts

266 months

Friday 13th May 2005
quotequote all
I don't know that the added complexity of building the atom chassis in ally, for what would likely be a very small saving in weight, is worth the hassle.
look at quality steel-framed push bikes compared to ally - the weights really aren't that different, unless you start to get really smart about the profiling of the tubes, as although ally is lighter, you need more of it to gain the same strength.
there's certainly an argument to use it in terms of stiffness, as steel has a bit more natural 'spring', but trying to assemble a chassis like that out of ally would be quite a feat - and then if you have a small prang and knock some lugs off it ( for instance ), it will again be quite a specialist job to repair it.
weight of the atom is 500kg( ish +/- )