Player0

Hey guys,

I picked one of these chassis braces up for the hell of it:

http://www.lindseyracing.com/LR/Parts/944SUSLCB.html

And I have the Elephant Racing Monoball

http://www.elephantracing.com/suspen...m#control_rear

The LR part came with longer bolts. However, the bump on the monoball means the LR bracket doesn't want to sit flat.

I can take up the slack with 4-5 standard washers (or try to find some thicker ones). But I'm wondering if this is stupid? Is that going to weaken this mount considerably?

Player0

While I'm at it, the hardware store doesn't have new metal 12x1.50 locking nuts for the eccentric rear a-arm bolt. It had nylon versions.

Should I use the new nylon nuts, reuse the old metal locking nuts, or try to find new metal locking nuts?

Player0

Am I going down uncharted territory here?

Reimu

Yeah I wasn't even aware LR sold anything like that, I don't think it's a popular purchase...
Maybe email them and ask what they think?

Player0

I've seen some other stores sell something similar. I guess my question wasn't specifically about the brace, but the risks of having too many spacers on the rear mounting point. I've heard that extending bolts like that can be detrimental to their strength. The brace itself is putting extra load on these bolts, and it's mostly sheer load I think.

But it's probably fine and I'm just paranoid

MAGK944

I would be tempted to drill those bearing mounting holes out and fit an extended tubular steel sleeve that clears the bump. I just don't like stacking washers in place of spacers, just my 2c.

Player0

Hmm, that's not a bad idea. I wonder if that would weaken the block though.

mikey_audiogeek

My view is that the bolts are loaded in tension only, and the mount is maintained in position by the clamping force and friction (just like wheel bolts).
A longer bolt has a lower spring rate and therefore is less likely to lose clamping force under dynamic conditions. And the brace reacts load from one mount to the other, effectively sharing the load and relieving the mount of some load. So, all in all, no concern.

I would use spacers rather than a stack of washers just to avoid all the negative comments from people who look under the car... amazing what people will pick up on!

Cheers,
Mike