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Old 2010-06-15, 10:13 PM   #3
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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Dude, thanks for all the info! I'm on my phone reading this so I'll have to go back over it later when I can think about it more clearly. I think I understand the relationship between the steering rod angle and the instant cente of the control arms, but I don't know that I understand what the instant center looks like on a mcstrut suspension. Plus, it's going to be a bit of work to properly measure the svx in order to really diagram what my issue is since I've never had to measure suspension geometry before. I'm sure my margin of error will be pretty big.

Just from driving the car though, I'm willing to bet the car is toe in under bump. If it wasn't, I'd expect it to be darty under braking what with the wide tires and bumpy braking zones at rfr. Since it's really stable under hard braking, plus all the understeer, toe in sounds most likely.

And yeah, the weight distribution is terrible. Probably more like 65/35 in reality, but it's bad enough that the rear suspension goes light when you put just the front of the car on jackstands.
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