Front Strut Brace (987)?

[Verner]

Hi,

has anyone and recommendations for 987 Front Strut Braces?
I am possibly looking to purchase one and would like a little help if possible?
Are they any good and can they be fitted to allow all the plastic frunk covers to be put back into place?

Any help would be greatly appreciated,

Verner

 

[MrDemon]

oem Porsche and also fit a rear sub frame brace bar which is more important.

 

[legin]

I have a carbon fibre one and with a little trimming it fits under the plastic. Only thing is it does little or nothing I can detect. As D says fit the the factory one off 986/996 or dont bother.

 

[CLIFFWILKINS]

Hi.
Personally I don't see much benefit from front strut brace especially for road use.
Enjoy. []

 

[911hillclimber]

Can't help but agree ^^^
I have fitted a strut brace to 2 cars, my 91973 9911 T hillclimb car ans the car that followed, a '96 Subaru Impreza hillclimb car with 370 bhp.

Noticed no difference at all on a hillclimb, and similarly on the road with either.

As to a Boxster, the whole shell and suspension is so much stiffer than those two cars plus Porsche didn't fit one either, so doubt there is much to be gained?

 

[Motorhead]

Verner,

I agree with the above and also have to ask why you want to fit it? For an open-top car the Boxster is plenty stiff enough for both road and "enthusiastic” track use, and a relatively small diameter bolted-in tube will do little or nothing to increase the torsional stiffness, which presumably is what you’re hoping to achieve. The effectiveness of the brace’s end conditions is critical and a few small bolts will achieve very little compared with appropriate turret gusseting and welding a large diameter tube in position, which is what’s really required.

Personally I’d forget it.

Jeff

 

[911hillclimber]

In my (albeit limited) experience, best mod to a chassis is a set of better tyres designed for the car's principle purpose.

 

[MrDemon]

Verner,

I agree with the above and also have to ask why you want to fit it? For an open-top car the Boxster is plenty stiff enough for both road and "enthusiastic” track use, and a relatively small diameter bolted-in tube will do little or nothing to increase the torsional stiffness, which presumably is what you’re hoping to achieve. The effectiveness of the brace’s end conditions is critical and a few small bolts will achieve very little compared with appropriate turret gusseting and welding a large diameter tube in position, which is what’s really required.

Personally I’d forget it.

Jeff

the 981 and 718 now have rear sub mount bracing which the 987 did not have, you can also buy front OEM bracing. So yes worth it other wise Porsche would not upgrade later models ! esp when you start buying newer rubber which is more sticky. I have all these parts , plus tranny mounts. engine mounts, RSS mono balls etc etc and the cars night and day better.

people say the 981 chassis has moved on , but it's the same as the 987 but with an added rear sub frame brace really !

 

[Motorhead]

Correct me if I’m wrong D but I thought that the 981 rear subframe stiffener only came on the 981 GT4 and was carried-over to all the 718-series cars? Every manufacturer manages to achieve an improvement in both bending and torsional stiffness of their body-in-whites with time, (hopefully!) with corresponding improvements in ride and handling.

Back in the day I was consulting with Jaguar trying to improve the dynamic torsional stiffness of the XJS convertible and we ended up putting in some substantial cross-bracing front and rear on the underside which gave us some improvement. The most effective thing to do is to fit a roof! []

Jeff

 

[MrDemon]

Correct me if I’m wrong D but I thought that the 981 rear subframe stiffener only came on the 981 GT4 and was carried-over to all the 718-series cars? Every manufacturer manages to achieve an improvement in both bending and torsional stiffness of their body-in-whites with time, (hopefully!) with corresponding improvements in ride and handling.

Back in the day I was consulting with Jaguar trying to improve the dynamic torsional stiffness of the XJS convertible and we ended up putting in some substantial cross-bracing front and rear on the underside which gave us some improvement. The most effective thing to do is to fit a roof! []

Jeff

all 981 have the added sub frame brace at the rear I am sure and every model always gets wider track, if you want your car to handle better these parts are a must have and I have always said fit 7mm spacers at the front only, my front tracks 27mm wider with GT3 arms not spacers.

The Cayman R is about 1000 time stiffer in the body than the Boxsters hence they have harder sus and stiffer ARB etc and drive better unless you mod the Boxster.

So yes buy a Cayman R but these are £50k now for a 10 year old car, or spend a £200 on some new parts for the 987 Boxster

my 987.2 Spyder is very special thing to drive.

 

[MrDemon]

Here are the 2 Brace bars Porsche left out !!! but I added back in def feel a differance full chat into a round about the front feels more solid some how.

http://www.clubspyder.co.uk/spyder/brace1.jpg