Rorty
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| posted on 29/10/05 at 06:58 AM |
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Cortina uprights anyone?
Due to the scarcity of the venerable Cortina uprights, I came up with these Cortina upright designs for an old mid-engine project, simply because I
couldn't be bothered redesigning the wishbones to suit more recent uprights.
I've made and used both types in the past though based on VW uprights and not Cortina ones.
They're not really DIY in the same way the RHS uprights are, but if someone here has the facilities to laser, fold and machine the parts,
I'll gladly supply the DXF files. Perhaps someone will stick their hand up and produce quantities for Locost members or whatever.
I'm sure they'd sell and would be more "Locost" than those horrid Sierra "uprights".
ROD END TYPE UPRIGHT
 
Rescued attachment Cort_upright_01.jpg
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Rorty
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| posted on 29/10/05 at 06:59 AM |
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BALLJOINT TYPE UPRIGHT.
 
Rescued attachment Cort_upright_04.jpg
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Rorty
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| posted on 29/10/05 at 07:01 AM |
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This is the general idea.
 
Rescued attachment Cort_upright_03.jpg
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Triton
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| posted on 29/10/05 at 07:13 AM |
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Cool idea mate....keep it coming.
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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marc n
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| posted on 29/10/05 at 07:51 AM |
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nice one rorty, we are looking to make something as a cheaper alternative to raceleda that enables people to have a proper front end rather than the
sierra setup
can find out costs etc if this is going to be locost based we have a company we use at the mo who are just down the road who laser and fold etc
best regards
marc
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Triton
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| posted on 29/10/05 at 08:03 AM |
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Marc,
Are you going to be at Exeter?
Cheers
Mark
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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marc n
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| posted on 29/10/05 at 08:11 AM |
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hi mark
yep will be at exeter, are you there with ken ?
best regards
marc
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Deckman001
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| posted on 29/10/05 at 08:23 AM |
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Rorty, I've been away all week, my how things can change on the site !! 
Will be in touch about the uprights soon 
Jason
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JonBowden
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| posted on 29/10/05 at 12:15 PM |
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perhaps a dumb question, but is it possible to fabricate front uprights similar to the way frequently used for rear uprights ?
Jon
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Rorty
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| posted on 29/10/05 at 12:26 PM |
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quote:
Originally posted by marc n
nice one rorty, we are looking to make something as a cheaper alternative to raceleda that enables people to have a proper front end rather than the
sierra setup
can find out costs etc if this is going to be locost based we have a company we use at the mo who are just down the road who laser and fold etc
best regards
marc
Marc, it seems like you're in an ideal position to make these uprights. A nice bit of TIG would make a job of them.
If you don't have your own design, you're welcome to the DXF files for these uprights.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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marc n
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| posted on 29/10/05 at 12:42 PM |
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hi rorty
yep we could do, special deal on the locost builders forum to members, then some royalty for yourself, we did get half way through doing it about 6
months ago then had no time to finish, so would be any easy option, also have got a good deal on the raceleda alloy hubs discs etc to compliment
them
best regards
marc
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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Rorty
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| posted on 29/10/05 at 01:36 PM |
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Marc, It's just gone 11:30 pm and my CAD puter is shut down, but I'll email you with the files tomorrow.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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andyd
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| posted on 29/10/05 at 02:55 PM |
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Marc, I'd certainly be interested in a cheaper alternative to a raceleda setup based on Rorty's design. What kind of price (ballpark) do
you reckon you could produce these for? Also how much for your version of the hubs too?
Rorty, any chance when your CAD is back up (and you are too! ), you could make available a 3d model of both varieties to aid my own (and others)
designs?
Andy
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Rorty
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| posted on 29/10/05 at 10:19 PM |
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quote:
Originally posted by JonBowden
perhaps a dumb question, but is it possible to fabricate front uprights similar to the way frequently used for rear uprights ?
I missed this post before. Yes, the front uprights can be made in a number of ways.
Probably the easiest way for true DIY is the RHS route.
If you have easy access to a laser, you could also make a keyed upright which just slots together much like a jigsaw puzzle.
The only part that may cause a headache is the stub axle; fine if you've got a lathe, but trailer stubs can work well too.
RHS UPRIGHT
 
Rescued attachment Cort_upright_05.jpg
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Rorty
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| posted on 29/10/05 at 10:20 PM |
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KEYED UPRIGHT (not Cortina)
 
Rescued attachment keyed_upright.jpg
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Rorty
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| posted on 29/10/05 at 10:55 PM |
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quote:
Originally posted by andyd
Rorty, any chance when your CAD is back up (and you are too! ), you could make available a 3d model of both varieties to aid my own (and others)
designs?
While, on this occasion, I'm quite happy to supply the DXF files to one or two Locost vendors/manufacturers for them to make the uprights, as
policy, I don't release non-contracted CAD models. Sorry. 
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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Rorty
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| posted on 29/10/05 at 11:41 PM |
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Thanks to all those who contacted me about knocking out these uprights.
I think to be fair to everyone, and for the benefit of the Locost community at large, it would be best if a couple of industry entities produced the
uprights as they already have either the machinery to produce them or have well established trade contacts to draw on.
Assembly and marketing is another area where the manufacturers will have an advantage over the keen amateur enthusiast.
To this end, I will be sending the CAD files to MNR Sportscars and Triton Sports Cars for them to evaluate. No doubt they'll let everyone know
of any progress.
None of this should stop any individual having a go at copying this design of upright for themselves in the true Locost tradition!
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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andyd
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| posted on 30/10/05 at 08:58 AM |
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quote:
Originally posted by Rorty
as policy, I don't release non-contracted CAD models. Sorry.
That's fine, I understand.
Andy
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fatfranky
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| posted on 30/10/05 at 10:52 AM |
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Rorty, Marc etc.
Forgive my ignorance but what is wrong with Sierra uprights?
I appreciate that they are basically the bottom part of a MacPerson strut adapted to accept an upper ball joint but what is wrong with this
arrangement?
And why are Cortina uprights so superior?
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liam.mccaffrey
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| posted on 30/10/05 at 12:24 PM |
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they look better and i believe are a bit lighter
Build Blog
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flak monkey
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| posted on 30/10/05 at 12:26 PM |
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quote:
Originally posted by fatfranky
Rorty, Marc etc.
Forgive my ignorance but what is wrong with Sierra uprights?
I appreciate that they are basically the bottom part of a MacPerson strut adapted to accept an upper ball joint but what is wrong with this
arrangement?
And why are Cortina uprights so superior?
As Liam said, plus the geometry is also better suited to a double wishbone set up.
David
Sera
http://www.motosera.com
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Rorty
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| posted on 30/10/05 at 09:38 PM |
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Does anyone know the weight of one of the Sierra uprights?
The original Cortina upright weighs 2.57 kg, my balljoint plate upright weighs 1.86 kg, the rod end plate upright 1.79 kg and the RHS upright weighs
1.74 kg.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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blueshift
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| posted on 30/10/05 at 11:13 PM |
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Bah now I want to build new uprights. Although I have perfectly good refurbished cortina ones.
If I had a lathe and my friend with a laser at work hadn't quit his job..
.. then I'd never get the car finished
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James
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| posted on 31/10/05 at 12:30 PM |
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quote:
Originally posted by flak monkey
quote:
Originally posted by fatfranky
Rorty, Marc etc.
Forgive my ignorance but what is wrong with Sierra uprights?
I appreciate that they are basically the bottom part of a MacPerson strut adapted to accept an upper ball joint but what is wrong with this
arrangement?
And why are Cortina uprights so superior?
As Liam said, plus the geometry is also better suited to a double wishbone set up.
David
Clearly I know next to bugger-all about suspension design etc. but I had a long chat with Darren (GTS) and Peter from Raceline about the benefits of
each and I was pretty sure that they felt that apart from the weight the Sierra was a better design in terms of geometry.
Amongst others the things I remember were the scrub radius was better with the Sierra and the position of the wheel relative to the bearings meant
less strain on the wheel bearings.
Either way, it'd be good to get an accurate/comprehensive set of measurements of the Sierra upright to Rorty so he could do a Sierra version!
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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NS Dev
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| posted on 31/10/05 at 01:05 PM |
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surely the scrub radius will depend on what offset wheels are used! You can't say one is better than the other without including the full
package.
All I know is I would rather use something designed for a job than adapt something that wasn't.
I know the cortina upright wasn't designed for our application but it was a lot closer than the bottom of a McPherson leg!
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