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Old 2004-07-30, 09:53 AM   #12
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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Bumpage...

I ordered a used set of 7kg/mm rear springs with 1.6kg/mm tender springs. I figure, since the majority of the bounce is from the rear (as postulated on NASIOC, and backed up by multiple 1st person reports that re-installing stock rear struts all bounce is eliminated), the tenders should cut it down drastically.

Also, many people recommend running equal rates front and rear on the JICs (so now I'll have 7k mains front and rear, which is approx 390lb/in). And if the car is a bit too loose like that, I can always go up to 8k or 9k front springs.

So, basically I'm hoping the rear tenders will eliminate the freeway bounce w/o having to give up linear main rates, or dealing with the turn-in setup delay that occures with progressive front springs.

Either way, the used springs, *with helpers and shipping* were cheaper than getting just a new set of mains from JIC.

If that doesn't work, then it's time to get Nate calculating a matched set of Eibach mains and tenders for me.

BTW: I found this on JIC's japanese website... since I can't read Japanese I don't know what it says. Plus the chart is really tiny. And I don't even know if the US spec dampers match the JDM spec dampers. But, that's the closest I've found to shock dyno data for my FLT-A2s.
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