Caterham Dimensioned Locost

Whether it's a "book" chassis or another variant, FEA talk or roll cage advice that you're looking for, this is the place to talk frame construction.

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photoman
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Re: Caterham Dimensioned Locost

Post by photoman »

Well let's see now. A locosty with features everyone wants.
1. wider cockpit
2. more footroom
3 .reclining seats
4. cup holders
5 .radio
6. CD player
7. automatic transmission
8. automatic climate control with air conditioning
9. anti lock brakes
10. automatic light dimmer
11. adjustable suspension with "sport" setting
12. air bags
13. tinted glass
14. lighter
15. ashtray
16. locking console
17. padded dash
18. GPS system
19. rev limiter
20. and last but not least, my favorite---keyless entry. :cheers: :cheers: :cheers:
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a.moore
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Re: Caterham Dimensioned Locost

Post by a.moore »

photoman wrote:20. and last but not least, my favorite---keyless entry. :cheers: :cheers: :cheers:


I thought that was standard on any breed of 7? :D
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Tim Taylor
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Re: Caterham Dimensioned Locost

Post by Tim Taylor »

George Cushing has some good info.
http://www.georgecushing.net/Lotus7.html
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photoman
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Re: Caterham Dimensioned Locost

Post by photoman »

a.moore wrote:
photoman wrote:20. and last but not least, my favorite---keyless entry. :cheers: :cheers: :cheers:


I thought that was standard on any breed of 7? :D

Very perceptive of you.
JSullivan
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Re: Caterham Dimensioned Locost

Post by JSullivan »

photoman wrote:5 .radio
6. CD player


Nah, just set the speakers up for a 2.5 or 3.5mm input jack, plug your ipod/phone in. A CD player would probably be the easiest way to do this, however.

7. automatic transmission


Hell, wouldn't that be easier?

11. adjustable suspension with "sport" setting


Hell, you could do that already pretty easily, if spendy. Get one of those custom TEIN electronic setups. But a lot of people use adjustable shocks and coilovers to start with, you just have to adjust it by hand. With the suspension generally so external, you could just swap out the springs/shocks when you get to the track/fun roads anyway. So why the joke?

12. air bags


Isn't there somebody using air bag suspension? Wouldn't be hard to do in any case. :cheers:

Now safety airbags, that could get complicated. :BH:

13. tinted glass


Use sunglasses!

14. lighter


Well you need to plug your charger in, so your phone/ipod doesn't die mid-drive, you know?

15. ashtray


Good for them, being responsible and not ashing everywhere. :cheers:

16. locking console


Not a big deal? :roll: Don't several kits offer exactly this?

17. padded dash


Padded for what? :lol:

18. GPS system


See lighter.

19. rev limiter


Don't most ECU's have one? :wink:

20. and last but not least, my favorite---keyless entry. :cheers: :cheers: :cheers:


Ooh, what's the fee? Or is it a 'look how much standard equipment we have!' selling point? :cheers:
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JSullivan
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Re: Caterham Dimensioned Locost

Post by JSullivan »

Oh, and to be on-topic: Isn't there a fully modeled CSR chassis on a sketchup database somewhere?
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Adrian
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Re: Caterham Dimensioned Locost

Post by Adrian »

Sorry to drag this ancient thread up to the top, but I was looking for info on the original SI, II, III 7's V's the book dimensions and this was the most prolific (and unfortunately contentious) thread on the subject.

The reason I was searching was WRT D Mod chassis. It seems that anything with a vaguely 7esc nosecone on gets called a 7 for D Mod. I was trying to find what the minimum wheelbase was for the class and what the wheelbase deviation allowed from stock is. I assume there is no restriction on lengthening wheelbase as some cars seem to have a very long wheelbase. Why wouldn't people build cars to the smallest footprint allowed under the rules or based on the original Series I cars which I believe was 88"?
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zetec7
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Re: Caterham Dimensioned Locost

Post by zetec7 »

"Rev limiter"...LOL, well, last time I checked, every engine ever built had one of those! As I recall, a racing buddy had his tachometer marked thus:
- 5500 rpm - amber section
- 6500 rpm - red section
- 7500+ rpm - marked "BANG!"
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Vovchandr
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Re: Caterham Dimensioned Locost

Post by Vovchandr »

Anybody ever try to buy the Caterham chassis?

Their British parts website has them listed for around $4k GBP. Plus VAT for whoever that includes (not sure if that includes international sales).

Last I talked to local dealers by email, they just forward their parts requests to the Brits and get it shipped, I don't believe they stock anything. (At least not the Buffalo one).

I emailed both Parts site and US dealer and got no response in regards to just getting the chassis with a bunch of individual parts ordered in the mix (might as well get OE body panels for OE chassis).

Anybody had any luck or quotes?
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zetec7
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Re: Caterham Dimensioned Locost

Post by zetec7 »

I tried to get a couple of parts from Cat****m. They refused to even speak to me unless I could provide them with the VIN number of my genuine Cat****m.
Scratch building, at continental-drift speed, a custom McSoreley-design framed, dual-Weber 45DCOE carburated, Zetec-engined, ridiculously fast money pit.

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rx7locost
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Re: Caterham Dimensioned Locost

Post by rx7locost »

I for one, could get behind a more svelte, traditional looking Locost build with bench seats and no roll bar. I've been tossing the idea of a Midget/Sprite-based build. The original Seven size ( smaller than a book Locost) would work well I think. I don't know if I will ever get around to it though.
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cs3tcr
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Re: Caterham Dimensioned Locost

Post by cs3tcr »

I tried to get a couple of parts from Cat****m. They refused to even speak to me unless I could provide them with the VIN number of my genuine Cat****m.


That's quite strange, I know that they're very strict on selling chassis' or CBU's, but smaller parts they should sell to the general public. When David Saville-Peck was still alive, I used to order through him (he was the Caterham dealer in Chemainus) and he never gave me any hassle. Then again, Caterham has dropped a lot of the older parts, but those are now supplied by Redline ( http://www.redlinecomponents.co.uk/ ). I did order some items from them a long time ago, and again no hassle.

've been tossing the idea of a Midget/Sprite-based build. The original Seven size ( smaller than a book Locost) would work well I think.


That sounds like something I too have been thinking about. But, after building the Eleven with a Nash Met axle (same basic axle as the Midget), I'd start looking into finding a Morris Minor axle along with the axle out of the Spriget. The Minor axle is wider, but what you can do is cut down one side, re-weld and use the Spridget half shaft. This centers the diff input flange (or close to it) and allows for a slight increase in tire to chassis clearance, along with maintaining the Spridget bolt pattern & brake set up.
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a.moore
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Re: Caterham Dimensioned Locost

Post by a.moore »

cs3tcr wrote:
've been tossing the idea of a Midget/Sprite-based build. The original Seven size ( smaller than a book Locost) would work well I think.


That sounds like something I too have been thinking about. But, after building the Eleven with a Nash Met axle (same basic axle as the Midget), I'd start looking into finding a Morris Minor axle along with the axle out of the Spriget. The Minor axle is wider, but what you can do is cut down one side, re-weld and use the Spridget half shaft. This centers the diff input flange (or close to it) and allows for a slight increase in tire to chassis clearance, along with maintaining the Spridget bolt pattern & brake set up.


I'm seriously considering doing the same for the next car. I'm pretty sure you could make a good new set of axles if you have access to some basic machine tools and widen the Spridget axle housing yourself.
CodySimonson
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Re: Caterham Dimensioned Locost

Post by CodySimonson »

I know it's not exact but once I finish up my frame design that is sized very similarly to a Donkervoort D8 I could upload the sizes. I've designed it based off of lots of pictures and measurements from various sources. I'm also doing a Torsional rigidity FEA on the chassis as well.

That is, if anyone wants to see....
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Lonnie-S
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Re: Caterham Dimensioned Locost

Post by Lonnie-S »

CodySimonson wrote: . . . That is, if anyone wants to see....


Of course we do! Look forward to it.

Cheers,
Damn! That front slip angle is way too large and the Ackerman is just a muddle.

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