mleds

I have researched the archives and want to reopen this topic for some new light.
Should a strut brace in a 993 or 993TT have any preload, and if so, which way and how much tension. Should it seperate the shock towers more or pull them together. Please help me out on this....
Thanks,
Michael

Jim

Just a little tension, the strut brace is merely there to keep the struts exactly where they started from. They apparently have a tendency to come closer to one another under load.

AOW162435

Jim,
I was under the impression that in a turn, the outer strut tower will 'flex' outwards. Hence the myriad debates regarding the actual vs. perceived strengths of various strut bar designs. Some have suggested that a steel cable (if properly sized & anchored) could do the same job as a proper, rigid, bar.


Andreas

slant911

My understanding is that the bar should be pre-loaded pushing the towers apart slightly.

993_Pilot

That was my impression too. The instructions on mine said to set it with no load on a level surface. Hopefully somebody with more expertise than me will step up and set us straight.

ppressle

I was told that tension is correct, to mimimize the camber change. When cornering, the outer wheel will attempt to pull the top of the wheel (and thus the top of the strut tower) out. The strut bar will distribute that load to minimize the deflection.

The other use is to keep the towers from pushing together during a heavy compression. You would want compression for that.

Of the two, I opted to minimize camber change. I also think that since the bar isn't going to stretch or compress much either would work and it is pretty much a non issue.

I can't claim expertise here. I can however regurgitate that which I have read and which makes sense to me.

mleds

So far I am more impressed with my Carrera RS factory strut brace, but I will post a follow up at a later time.

BillJ

Ideally, you want a triangulated brace that permits movement in neither direction, but not sure that anyone makes a bolt-on in this style?

Bull

The strut brace should be snugged down, but no "tension" in any direction. Don't forget to loosen during alignment, etc., then tighten last.

kkim

http://www.klaindustries.net/993stb/993-stb-install.htm