interestedparty
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| posted on 5/8/10 at 09:44 AM |
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quote:
Originally posted by Davey D
Cant see it being that hard to add corrent lighting etc to it
Bit more to it than that, though. That long nose is going to have to be shortened or raised quite a bit before it will be road usable. Then there are
other issues like not being allowed to have the fuel tank in the engine compartment (see the Pulse GT1 above). Plus the lights have to be high enough
too.
And is there enough room inside?
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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khm
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| posted on 5/8/10 at 09:50 AM |
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going to box tanks in, yes room for 3 !!
work in progress LMAO ' the money pit ' !!
I'd rather be scared to death, than bored to death !
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alistairolsen
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| posted on 5/8/10 at 10:22 AM |
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oh I fully understand the metallurgy aspect and why one uses steel as opposed to stainless. I also understand the weight penalty and clearly there are
efficiencies to be borne in mind. That said however I cant think of a single reason why one would make a car chassis less stiff than possible for any
given mass.
KHM, did you scratchbuild that?
[Edited on 5/8/10 by alistairolsen]
My Build Thread
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khm
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| posted on 5/8/10 at 10:33 AM |
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no, bougt it as a project, was built to race in british GT series but they changed the rules 2 weeks before it ran, i bought a pile of bits with no
engine or box - been a bit of work LOL
all built from T45 tubing - strong & light
[Edited on 5/8/10 by khm]
I'd rather be scared to death, than bored to death !
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Fred W B
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| posted on 5/8/10 at 11:21 AM |
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Hi KHM
Thats an awesome looking project, how about you put some more details or a build thread up in the middy section - it's been a bit quiet there
lately.
Cheers
Fred W B
[Edited on 5/8/10 by Fred W B]
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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Alan B
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| posted on 5/8/10 at 11:23 AM |
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quote:
Originally posted by franky
quote:
Originally posted by scootz
quote:
Originally posted by Liam
Seem to remember quite a good site about an ultima build ages ago. The guy did some fea on the standard chassis and found it was a bit carp in
siffness terms, and looking at the chassis it was easy to see why. He made significant improvements (a few times stiffer i beleive) with extra braces,
panelling etc. Was al good. Then a BMW V12 went in it. Mmmmmmm
Can't be that bad... designed by Lee Noble and subsequently used by McLaren as their 'mule' chassis for what became the F1.
There seems to be a fascination with supremely stiff chassis... the Ultima chassis was designed to do an overall job - not just win torsional rigidity
tests!
+1 to both the above.... a chassis thats too stiff is worse than one thats not stiff enough!
With all due respect, that's nonsense....you can't have a chassis that is too stiff. Stiffness doesn't mean brittleness...a well
designed stiff chassis will deform in the right places when subjected to high enough forces, but it will keep it's suspension pickups where they
were designed to be during normal use so that the suspension can do its job.
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khm
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| posted on 5/8/10 at 12:05 PM |
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can't beat having a stiff one 
I'd rather be scared to death, than bored to death !
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Liam
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| posted on 5/8/10 at 12:45 PM |
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quote:
Originally posted by scootz
Can't be that bad... designed by Lee Noble and subsequently used by McLaren as their 'mule' chassis for what became the
F1.
That may be true, but then the eventual McLaren F1 came out with a torsional rigidity almost 10x higher than an Ultima chassis! Like a book Locost,
the standard Ultima fails the Aussie torsion test.
Ah - here's the site - very interesting...
http://www.ultimav12.ca/
Not saying the Ultima is bad by any stretch of the imagination, but it's by no means great and can be improved easily.
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alistairolsen
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| posted on 5/8/10 at 12:52 PM |
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Thats a serious project, I second the calls for more! What box does it run? I assume the box is a stressed member carrying the rear suspension?
My Build Thread
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BobM
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| posted on 5/8/10 at 01:03 PM |
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quote:
Originally posted by orton1966
Why so expensive to build?
Even 500+ HP of V8 or turbo V6 can be had reasonably cheaply so once you have the kit (yes quite expensive) and assuming you went for a minimalist
but smart racer interior, what else puts the cost up? I guess the wheel and tyre options don’t come cheap, is it just the incremental effect of things
like these?[Edited on 5/8/10 by orton1966]
Wheels/tyres, bespoke ally uprights, bespoke GKN driveshafts, bespoke steering rack, bespoke seats, bespoke windscreen, aircon (try selling an Ult
without aircon, or driving one for that matter), Porsche transaxle, humongous AP brakes etc. etc.
None of the bits are excessively expensive individually and it's all high quality but they aren't cheap. ISTR mine cost me about £46k and
that was a few years ago.
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procomp
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| posted on 5/8/10 at 02:19 PM |
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Hi
If you look at the Retoga setup you'll find it was a very very poor and blatant copy of the Lynx AE Which
has a proven track record and built by a guy who does know what he's doing. Seriously worth a look if looking at this sort of car. And the all
new version has had an updated body due to the Retoga making a copy of the old.
Cheers Matt
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interestedparty
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| posted on 5/8/10 at 02:45 PM |
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problem with the lynx ae is that is uses a polycarbonate windscreen, so nfg for road use unfortunately.
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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khm
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| posted on 6/8/10 at 02:22 PM |
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quote:
Originally posted by Fred W B
Hi KHM
Thats an awesome looking project, how about you put some more details or a build thread up in the middy section - it's been a bit quiet there
lately.
Cheers
Fred W B
[Edited on 5/8/10 by Fred W B]
http://www.locostbuilders.co.uk/viewthread.php?tid=140981&page=1
I'd rather be scared to death, than bored to death !
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