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Re: Front Lower Brace
[Re: Nigel]
#670284
28/08/2008 22:14
28/08/2008 22:14
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Joined: Dec 2007
Posts: 2,252 Windsor/ Reading
knight7660
Competition Level
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Competition Level
Joined: Dec 2007
Posts: 2,252
Windsor/ Reading
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i think someone should do a poll for a group buy, i would but i dont get on the net that much
LE53 (452BHp & 389ftlb's with Quaife) Wine red VIS FOOFY Audi RS4 B7
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Re: Front Lower Brace
[Re: Begbie]
#670494
29/08/2008 11:50
29/08/2008 11:50
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ben20vt
Unregistered
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ben20vt
Unregistered
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I have ordered one of the 156 braces from rallydesign.co.uk as Having read about and experienced Strutbracer's customer support first hand, I'm not keen to repeat that.... Anyway, he has none in stock, and OMP have just come back off their annual shutdown...If anyone else wants one, the order will be going in early next week, and will not be repeated until next month....
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Re: Front Lower Brace
[Re: Nigel]
#670574
29/08/2008 13:51
29/08/2008 13:51
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paul20vturbo
Unregistered
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paul20vturbo
Unregistered
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I also would be intrested in one to
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Re: Front Lower Brace
[Re: Begbie]
#670783
29/08/2008 21:12
29/08/2008 21:12
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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Re: Front Lower Brace
[Re: Jimbo]
#670796
29/08/2008 21:49
29/08/2008 21:49
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sparkyman
Unregistered
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sparkyman
Unregistered
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Tight, very tight Jimbo.
Only 50 quid..mmmm
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Re: Front Lower Brace
[Re: ]
#670803
29/08/2008 22:19
29/08/2008 22:19
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sprintsteve
Unregistered
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sprintsteve
Unregistered
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whats the ground clearance like jimbo,you hit it on anything yet?
tempted at 50 quid
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Re: Front Lower Brace
[Re: Gaz]
#674172
04/09/2008 20:17
04/09/2008 20:17
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symonh2000
Unregistered
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symonh2000
Unregistered
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I have been thinking about this, and I reckon it would be possible to use a piece of Flat steel bar bolted between the front wishbone mountings.
As it is flat it souldn't affect ground clearance much. It would also be cheap, probably less that £15 even if it was powder coated.
What do you all reckon? I have access to some free 50x8mm flat bar at work, as well as some longer bolts for the wishbones.
What do you guys think?
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Re: Front Lower Brace
[Re: ]
#674191
04/09/2008 21:05
04/09/2008 21:05
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Nobby
Unregistered
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Nobby
Unregistered
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Clearance to the downpipe is an issue with the lower support braces. I'm sure someone will be along with a technical metalurgist type assessment of tube/solid vs flat bar.
Chris
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Re: Front Lower Brace
[Re: ]
#674215
04/09/2008 21:53
04/09/2008 21:53
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Joined: Dec 2005
Posts: 17,370 Staffordshire
Nigel
Forum veteran
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Forum veteran
Joined: Dec 2005
Posts: 17,370
Staffordshire
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flat bar (especially only 8mm) would flex under compression Tube is just as strong as solid bar under compression and tension, and is possibly even stronger in flex. However, my experience of tube is that it is much less resistant to large rocks and bricks, and will end up being bashed flat at some point in its life (especially if you're already lowered) I spent a LONG time designing my lower brace and came up with solid 20mm stainless bar - not exactly the lightest solution, but highly resistant to everything that's hit it so far. Now polling to see if there's enough interest in a new batch new subframe brace GB thread
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Re: Front Lower Brace
[Re: Nigel]
#674227
04/09/2008 22:10
04/09/2008 22:10
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symonh2000
Unregistered
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symonh2000
Unregistered
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Thanks for that Nigel.. I did think that it may flex, but I thought I may as well ask as I have it freely availably.
Do you think 25x25 3mm wall box section with mounting tabs welded at the ends would work? As I have access to that as well as a welder.
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Re: Front Lower Brace
[Re: Nigel]
#674253
04/09/2008 22:58
04/09/2008 22:58
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symonh2000
Unregistered
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symonh2000
Unregistered
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Ok then, thanks Nigel.
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Re: Front Lower Brace
[Re: Nigel]
#674371
05/09/2008 09:23
05/09/2008 09:23
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k9huff
Unregistered
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k9huff
Unregistered
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it would work better than flat plate, but it will still flex more than tube or circular bar A bit of a generalisation! It would flex less then a 25mm diameter round tube of 3mm steel.
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Re: Front Lower Brace
[Re: ]
#674383
05/09/2008 09:43
05/09/2008 09:43
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Joined: Dec 2005
Posts: 9,706 Gone
Jimbo
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 9,706
Gone
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Re: Front Lower Brace
[Re: Nigel]
#674416
05/09/2008 10:25
05/09/2008 10:25
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k9huff
Unregistered
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k9huff
Unregistered
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That is a common misconception. Bending resistance is governed by the second moment of area, and a square section wins over a round one given equal sizes i.e. diameter of round section is same as the egde of the square section and same wall thickness.
The reason that round tubes are used for some space framed cars (many use square) is that for a given resistance to bending, round tube is lighter, i.e. it's a more efficient use of material.
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