S1 Exige rear chassis brace

The Oily Bits S1 Specific Topics
1

For those of you who have braced the gap where the exhaust would usually run towards the backbox, what have you used?

If anyone has any piccies, that would be great. Ta

2

Is your undertray lowered ( to clear the Honda sump ) or standard ?

3

A piece of 15mm steel box section will do the job.

4

Is your undertray lowered ( to clear the Honda sump ) or standard ?

Standard I think.

5

A piece of 15mm steel box section will do the job.

Yes

[image]http://img.photobucket.com/albums/v471/AndrewDovey/b1.jpg[/image]

[image]http://img.photobucket.com/albums/v471/AndrewDovey/b2.jpg[/image]

But it may interfere with the exhaust when the engine rocks … mine did…

But now I have a machined solid aluminium bar … took me 4 hours on the Bridgeport though …

If you dont have an engine mount like I do the best answer is to fit some box section to the undertray to line it up for the M8 bolts.

look at the wishbones

6

look at the wishbones

I’ve gone all moist!

7

look at the wishbones

I’ve gone all moist!

I’ll bring more pics at Easter

8

I’ll bring more pics at Easter

Not bringing the car, Andy?

9

Did you use rivnuts for the M8 bolts?

Anyway cheers, thats looks fairly easy. I’ll have a go this weekend.

10

Did you use rivnuts for the M8 bolts?

Anyway cheers, thats looks fairly easy. I’ll have a go this weekend.

There already there to hold the undertray on

11

stupid question. whats the brace for?

12

stupid question. whats the brace for?

I was trying to work that out too

13

look at the wishbones

I’ve gone all moist!

carefull…that’s how the rust starts in the first place…

14

It just helps eliminate any flex in the chassis beteween those two points shown in the picture. Apparently well worth doing.

15

It just helps eliminate any flex in the chassis beteween those two points shown in the picture. Apparently well worth doing.

Especially if the boot floor has been removed to accomadate the Link Up “race spec” exhaust manifold.

16

Doesn’t the undertray have to be modified?

17

First I’ve heard of this mod since having my exhaust fitted at Hofmann’s last year!

18

It just helps eliminate any flex in the chassis beteween those two points shown in the picture. Apparently well worth doing.

Especially if the boot floor has been removed to accomadate the Link Up “race spec” exhaust manifold.

Would be surprised if the boot floor actually made it more structurally rigid ?

If you’ve got the Link-up race exhaust then the best way to do it would be to fill the entire space up between the subframe as is done to Waynes’ colleagues Audi car - looked a really neat job.

http://forums.seloc.org/viewthread.php?tid=195877&page=1

19

It just helps eliminate any flex in the chassis beteween those two points shown in the picture. Apparently well worth doing.

Especially if the boot floor has been removed to accomadate the Link Up “race spec” exhaust manifold.

Would be surprised if the boot floor actually made it more structurally rigid ?

If you’ve got the Link-up race exhaust then the best way to do it would be to fill the entire space up between the subframe as is done to Waynes’ colleagues Audi car - looked a really neat job.

SELOC Forums >

Just before and ET racers get excited, it’s not allowed.

Boot floor will make no difference.

20

Can’t see how the boot floor would make any difference at all, although you could replace it with a structural section which would be less efficient.

Best answer would be to weld in a plate to fill in the “horseshoe” cutout. A Brace will work okay too, although I can’t see it having a huge effect on the car since the rear subframe is quite substantial, and is solidly mounted to the chassis and the car’s not that heavy.