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-   -   Front Suspension 'discovery'? (https://www.ft86club.com/forums/showthread.php?t=1537)

Dimman 07-21-2011 05:07 AM

Front Suspension 'discovery'?
 
Looking at the see-through Subaru Geneva display I shocked myself into thinking that it may have a double-wishbone front suspension, instead of the Subaru usual MacStruts.

However I'm putting it in quotes with a question mark because it could just be a support to hold everything together.

But here's what I think I see:

http://i821.photobucket.com/albums/z...f/IMG_2658.jpg

http://i821.photobucket.com/albums/z...f/IMG_2657.jpg

http://i821.photobucket.com/albums/z...f/IMG_2608.jpg

Like I said, I may be getting over excited on what could turn out just to be something to hold the strut up.

But if it is an actual control arm it may look like this:

http://i821.photobucket.com/albums/z...suspension.png

Here is 'normal':

http://i821.photobucket.com/albums/z...inkdiagram.jpg

Thoughts?

Random_Art 07-21-2011 09:24 AM

It could be, but whether that's the setup that will make it into the production model is anyone's guess.

For comparison: Double wishbone http://fc02.deviantart.net/fs71/i/20...el-d3398h7.jpg
Macpherson Strut
http://www.raw4x4europe.com/images/macpherson_strut.gif

Ryephile 07-21-2011 10:39 AM

It's not likely the production car will have SLA, even though I'd prefer that. What you see appears to be a brace to hold the strut in position since there's no strut tower sheetmetal.

McPherson is probable because:
A) the Subaru press release said so
B) the McPherson struts shown in the see-through concept wouldn't be used on an SLA [short/long arm] suspension setup. SLA's typically use compact coilovers that aren't designed for lateral load-bearing.
C) the proposed upper control arm angle would result in an asinine camber curve
D) the engine shape dissuades upper control arm mounting points
E) McPherson strut setups are slightly cheaper, and cheap is a big priority
F) hubs and control arms could be easily parts-binned from other Toyota/Subaru cars, since they both use plenty of McPherson setups, thus making the car even less expensive.

That's my deduction.

1660 07-21-2011 01:27 PM

It looks like a double wishbone suspension. It would be great if they did, but I don't think it will make it.

Matador 07-21-2011 01:51 PM

Quote:

Originally Posted by Ryephile (Post 51311)
It's not likely the production car will have SLA, even though I'd prefer that. What you see appears to be a brace to hold the strut in position since there's no strut tower sheetmetal.

McPherson is probable because:
A) the Subaru press release said so
B) the McPherson struts shown in the see-through concept wouldn't be used on an SLA [short/long arm] suspension setup. SLA's typically use compact coilovers that aren't designed for lateral load-bearing.
C) the proposed upper control arm angle would result in an asinine camber curve
D) the engine shape dissuades upper control arm mounting points
E) McPherson strut setups are slightly cheaper, and cheap is a big priority
F) hubs and control arms could be easily parts-binned from other Toyota/Subaru cars, since they both use plenty of McPherson setups, thus making the car even less expensive.

That's my deduction.

Sound Logic.

madfast 07-21-2011 04:39 PM

Quote:

Originally Posted by Ryephile (Post 51311)
What you see appears to be a brace to hold the strut in position since there's no strut tower sheetmetal.

:word:

that concept also has the steering arm in front of the axle (brake calipers behind the axle), whereas the spy photos clearly show the brake calipers in front of the axle and so the steering arm behind.

Dimman 07-22-2011 01:21 AM

Quote:

Originally Posted by madfast (Post 51426)
:word:

that concept also has the steering arm in front of the axle (brake calipers behind the axle), whereas the spy photos clearly show the brake calipers in front of the axle and so the steering arm behind.

Which means that anything we 'learned' from the clear model, is not necessarily 100% valid... And Moto P hinted that there was room for design differences between the two models... Hmmm...

They could in theory be using a compact double wishbone setup, like the one Random Art posted!

But yeah, I did think of the support, but just never figured out why I never noticed it before.

70NYD 07-22-2011 05:57 AM

Hmm that sucks
I remember thinking this was macpherson from the get go from the pics originally, but then thinking it could be wishbone.. Still confused as back in march
But I know for a damn fact that if this has macphersons and costs 40kAUD, the only thing I would benefit from this car over the 8 (1300kg, 185kw, lsd, dwb front with multylink rear) is the proposed low consumption.. In that case everything else would be a step back.. So if they disappoint me here I will be getting a turbo in my 8 :)
Win win yea?

Abflug 07-22-2011 04:58 PM

superstrut maybe :)

Neutral_Eyes 07-22-2011 08:31 PM

Struts weren't a deal breaker for me. Cheaper and lighter sounds great, as long as they take the time to tune it - which they seem to be doing.

Abflug 07-22-2011 08:43 PM

:word:

Dimman 07-22-2011 11:45 PM

Quote:

Originally Posted by 70NYD (Post 51520)
Hmm that sucks
I remember thinking this was macpherson from the get go from the pics originally, but then thinking it could be wishbone.. Still confused as back in march
But I know for a damn fact that if this has macphersons and costs 40kAUD, the only thing I would benefit from this car over the 8 (1300kg, 185kw, lsd, dwb front with multylink rear) is the proposed low consumption.. In that case everything else would be a step back.. So if they disappoint me here I will be getting a turbo in my 8 :)
Win win yea?

Not that I'm terribly surprised, but you sure haven't been as busy here since you got the RX8. It's probably doing a fine job filling the need for a great handling RWD 2+2. (despite the rotary weirdness...) :)

(or is it the new job?)

70NYD 07-23-2011 07:30 AM

Quote:

Originally Posted by Dimman (Post 51656)
Not that I'm terribly surprised, but you sure haven't been as busy here since you got the RX8. It's probably doing a fine job filling the need for a great handling RWD 2+2. (despite the rotary weirdness...) :)

(or is it the new job?)

Nah it's not the rx8 it's the work. The higher workload means I can't read through 20 pages of noobs talking shit to actually see what was said and contribute validly :( I still read the forums every day, but with the influx of people posting random, mainly useless and invalid stuff I just don't have time to argue for the truth, sanity and common sense like I used to haha. And some people (rednecks and kids) are still arguing that this car should have a v8 and turbo without actually ever driving a nimble car lol so I gave up. That and some of my posts were deleted so I don't give a shit, if ignorance prevails I still know what I know and I still get payed for it lol

On a side note what happened to your mk3? Just noticed it sais it's gone??

Dimman 07-23-2011 09:22 PM

Quote:

Originally Posted by 70NYD (Post 51681)
Nah it's not the rx8 it's the work. The higher workload means I can't read through 20 pages of noobs talking shit to actually see what was said and contribute validly :( I still read the forums every day, but with the influx of people posting random, mainly useless and invalid stuff I just don't have time to argue for the truth, sanity and common sense like I used to haha. And some people (rednecks and kids) are still arguing that this car should have a v8 and turbo without actually ever driving a nimble car lol so I gave up. That and some of my posts were deleted so I don't give a shit, if ignorance prevails I still know what I know and I still get payed for it lol

On a side note what happened to your mk3? Just noticed it sais it's gone??

The good one's gone, in exchange for money to buy tools and equipment that can hopefully make more money in the future (Tig welder :)).

I still have an old 86.5 hardtop with a 7M and auto that is going to be a guinea pig for above equipment which will include complete control arm and sub-frame replacement (eventually).

Is the RX-8 a proper double-wishbone front/multi-link rear like the Supra?


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