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Making shorter anti roll bar drop links. Any downsides?

Posted: Mon Oct 26, 2015 11:11 pm
by fefelarue
Hey y'all.

My rear anti roll bar links on my 3g are screeeewed. One of them has snapped. I can't find any anywhere, except from Honda which are FOURTY FIVE POUNDS EACH!!!!! I'm not spending £90 on two fancy bolts that have to be sent from Japan with a month wait.

Sooooo..

I can quite easily make my own from a bolt and some washers (I have new polybushes for it) but it would be a fair bit shorter than the original. The internet kinda says shorter links firm up the handling, which i want! But they'd be decreasing from about 80mm C-C, to more like 30-40mm. Is this a big deal? Commonsense tells me it would just firm up everything.

I assume it's okay, but wanted to check with you Prelude Pros, as I'm a complete noob when it comes to suspension and handling, and I'm basing this entirely on what the internet says.

Any help / advice / horror stories would be much appreciated :D

Peace out

Posted: Tue Oct 27, 2015 6:44 am
by wurlycorner
If they are shortened both sides, it won't make any difference to stiffness - the stiffness only comes as each side pulls in opposite directions, making the bar try to twist, which won't change.
They will have been that length for another reason though, e.g. for clearance purposes as the suspension travels going over bumps.
You don't want to be messing around changing the length of something like that imo.

Posted: Tue Oct 27, 2015 6:49 am
by fefelarue
Thanks for the reply :)

No worries, I'll probably just get some longer bolts and make a standard length one then.

Posted: Tue Oct 27, 2015 9:44 am
by RattyMcClelland
Don't skimp. £45 each aint bad.
I just bought all 4 drop links, all 6 lower balls joints all from Honda. I'm about £500 lighter.

Posted: Tue Oct 27, 2015 10:23 am
by fefelarue
It's not a case of skimping, it's that I can make the exact same thing from stainless bolts and metal brackets, but bolts of that length are harder to find..

Posted: Tue Oct 27, 2015 12:05 pm
by RattyMcClelland
I see. Be aware the drop links are meant to move to allow the roll bar some twist. They are basically 2 ball joints. Unless you already knew that.

Posted: Tue Oct 27, 2015 12:29 pm
by fefelarue
Yeah I understand basically how they work. But on that logic, I thought a shorter one would firm it up by allowing less movement, and acting more like a strut brace? Haha spot the noob over here

Posted: Tue Oct 27, 2015 12:37 pm
by fefelarue
Right don't worry guys, I finally understand it :D

Posted: Tue Oct 27, 2015 12:38 pm
by fefelarue
any movement while driving is gonna be directly along the direction of the drop link. So unless it's long enough to compress it along its axis, the length makes no difference?

Posted: Tue Oct 27, 2015 1:15 pm
by RattyMcClelland
No the bar needs to allow some movement or it can't twist and may rip out off the suspension.