New Rear Wing
Author
Discussion

Storer

Original Poster:

5,024 posts

237 months

Saturday 11th January 2014
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I have yet to start the repairs to my rear clip and wing but I have been thinking about the wing and possibly trying a newer looking design.

What got me thinking was this



or this



Both would require quite a lot of work to achieve.

Not thinking of trying to recreate the braking effect but possibly the raising and lowering so that at less than, say, 60mph it is down and part of the rear bodywork and above it rises up.

Discuss.


Paul

Justaredbadge

37,069 posts

210 months

Saturday 11th January 2014
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Have a look at what the f1 teams were doing 1968/1969.

Lotus was controlled by w wire with a bungee strap to pull it back in to place, Ferrari used hydraulics iirc.

barriejames

902 posts

201 months

Saturday 11th January 2014
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I think the rear wing as standard is pretty spot on

Storer

Original Poster:

5,024 posts

237 months

Saturday 11th January 2014
quotequote all
I knew this would polarise opinions.

My current wing is an early Factory standard 2 element and is very similar but not identical to the current design and will therefore need parts made specially to repair it (something the Factory supplier can do btw) but it will not be 'inexpensive'.

If I am going to spend a fair amount I am considering designing my own 'special' wing. It may not be a route I go down, but it is one I wish to investigate.

I am also thinking about changing to on the move hydraulically adjustable front dampers and if I do the pump could also power the wing up and down.

The biggest problem is the fact that the wing is mounted to the rear clip which in turn is only attached to the chassis by two ball joints at the rear that will have to take the increased load/weight. I know it is the same for the current wing so this may not be an issue.


Paul

deadscoob

2,265 posts

282 months

Sunday 12th January 2014
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The current wing doesn't move though. You'd need to attach it to the chassis directly if you wanted a real benefit from it, not just the aesthetics I think. Plus a new ecu, or some way of controlling it? Hard to package on a standard car.
SSS may have some ideas....

dandare

959 posts

276 months

Sunday 12th January 2014
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I think that's a great idea, Paul. I like it when people customise their Ultimas. Nice though the cars are, it does get a bit boring looking at the same shape, so any deviation/potential improvement will be interesting at least.

Why not keep the same top surface as the the rear clip, so that it sits flush when not needed? When it raises, it could help with under-clip temperature reduction by leaving a hole in the clip. Controlling it wouldn't necessarily be difficult. You can get stand-alone programmable modules to control it, so that it raises on braking and cornering, or at a certain speed.

Do it!
Daniel

Pedders

269 posts

306 months

Sunday 12th January 2014
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F.C.

3,899 posts

230 months

Sunday 12th January 2014
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Pedders said:
Saw this a while back, If it were used as an air brake I suspect the current mountings would give up pretty quickly.
A new under clam mount for lateral and vertical movement.

Pedders

269 posts

306 months

Sunday 12th January 2014
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F.C. said:
Saw this a while back, If it were used as an air brake I suspect the current mountings would give up pretty quickly.
A new under clam mount for lateral and vertical movement.
Agreed. I guess ideally you would attach the wing supports to the chassis, which would need some creative thinking around how to allow the rear clam to hinge whilst avoiding big slots in it!

Edited to add, as an afterthought, you might be able to add chassis mounted supports which sit just underneath the rear clam mounted wing mounts (and would transmit the force from the wing) rather than being directly connected.

Edited by Pedders on Sunday 12th January 11:32

hedgefinder

3,418 posts

192 months

Sunday 12th January 2014
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I think Stuarts Time Attack car had an adjustable rear wing.. ask SS.

F.C.

3,899 posts

230 months

Sunday 12th January 2014
quotequote all
Pedders said:
Agreed. I guess ideally you would attach the wing supports to the chassis, which would need some creative thinking around how to allow the rear clam to hinge whilst avoiding big slots in it!
The wing supports are already attached to the chassis via the clam hinge, though only with "normal" use in mind.

Justaredbadge

37,069 posts

210 months

Sunday 12th January 2014
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The most efficient place to mount it would be directly to the uprights, however this may not be possible due to the size of the wheels.

so you will be looking at a chassis mounted design. there's enough chassis at the back to mount something to fairly easily. opening the clam will be your biggest issue. Do you want to remove the wing elements before opening the engine bay each time? could it raise with the clam and latch down solidly when closed?

Storer

Original Poster:

5,024 posts

237 months

Sunday 12th January 2014
quotequote all
The above comments are, as usual, helpful in the thought process.

Having the wing the shape of the rear clip is a good one and along the lines of my previous thoughts. It could sit in a cut out of the rear clip which would still be able to open when the spoiler was in the retracted position.
The rams could be mounted to the chassis and the wing supports could be a telescopic tube. The hole left when the wing raises could either give more ventilation (not really needed at more than 60mph) or it could be the shape of the underside of the wing blanking the engine bay off and sealed with rubber door seal.

I don't know how easy or practical it would be but food for thought.

The SS adjustable rear wing requires a complete redesign of the rear clip and is probably a step to far for me.


Paul


EddyP

874 posts

242 months

Sunday 12th January 2014
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Hi Paul,

I looked into doing similar on my Vortex, in the end I decided it was a bit too much work and never got round to it. There's a thread in the readers cars area, a guy with a honda civic, who has made an actuated rear wing and his own controller etc… might be worth a look for you. I'll see if I can find it somewhere.


EDIT - Found it http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Edited by EddyP on Sunday 12th January 20:16

Storer

Original Poster:

5,024 posts

237 months

Sunday 12th January 2014
quotequote all
Thanks for the link Ed

I am not sure that Bowden cables would be strong enough for the pressure exerted by air at 150+mph. Hydraulics would be much stronger.


Paul

Justaredbadge

37,069 posts

210 months

Sunday 12th January 2014
quotequote all
Storer said:
Thanks for the link Ed

I am not sure that Bowden cables would be strong enough for the pressure exerted by air at 150+mph. Hydraulics would be much stronger.


Paul
The Lotus 49 used a bowden cable to flatten the wing and two bungee straps pulled it in to position. In Mexico 1968, one of the.bungee cords fell off, But the wing still worked enough for Hill to win the race and the championship.

Don't rule out the concept as it is compact and very lightweight compared to anything hydraulic.

Storer

Original Poster:

5,024 posts

237 months

Sunday 12th January 2014
quotequote all
Perhaps I should go compressed air then.


Paul

EddyP

874 posts

242 months

Sunday 12th January 2014
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Quite agree Paul, however thought it might be useful, especially as the guy might people able to help you out on the electrical controlling side of things.

Pneumatics would be nice, but think it's tricky to control an pneumatic actuator to stop in a mid way position which you may want to adjust wing angle, the advantage of using the ables and a linear actuator is you can stop it anywhere.

V8Dom

3,547 posts

224 months

Monday 13th January 2014
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rear wing from the chassis best bet as per sports not gtr


yes Paul you are right but I feel all it needs is different end plates to make the change

Dom...x

anonymous-user

76 months

Monday 13th January 2014
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Storer said:
The amount of work that went into that^^ particular active spoiler is beyond belief, especially getting it to rise and lower "level" rather than on-the-piss.......... ;-)