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Old 2011-08-25, 09:10 AM   #34
sperry
The Doink
 
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Real Name: Scott
Join Date: Nov 2002
Location: Portland, OR
Posts: 20,335
 
Car: '09 OBXT, '02 WRX, '96 Miata
Class: PDX/TT-6
 
The way out is through
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Quote:
Originally Posted by AtomicLabMonkey View Post
That's cutting it pretty close in terms of avoiding coil bind, which really is an instant spring rate jump.. far more so than a rubber stop engaging. You should have it spaced to allow full stop compression before coil bind, plus a little margin.
Well, I slapped a pair of the smaller Legacy GT bumpstops under there, and if I'm hitting them at all, I haven't noticed it. So, I'm going to call it "done", at least until after Saturday when I take the car to the track. We'll see how much tire rubbing and bump stop bumping I do. I get the feeling I'm going to need to clearance out the fenders a tiny bit at least.

Also, I put some polyurethane offset LCA bushings on the front suspension. They add a bunch of caster... so much so that the wheel is noticeably pushed forward in the wheel well. I'm actually rubbing up front at high steering angles, when parking the car for example. Plus, if any one single bushing makes the biggest difference in NVH on a Subaru, it's that LCA bushing. The damn polyurethane makes any rough road (like all the crappy slurry sealed roads in my neighborhood) scream with a low growl. I think I'm going to ditch the bushings after the track day... which sucks because 6.5 deg of caster really makes up for the tiny -2.1 deg of camber Cory was able to max out of the suspension. But, I'm an old man now apparently, and I can't stand a noisy car. I think I'll have to get a set of the heavy-duty STi LCA bushings... no caster help, but they should be quieter and hopefully won't tear in half the way the stock Outback ones do.
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