Quote:
Originally Posted by Spooler
Penske's are one of the best. AST or JRZ has nothing on them. The problem with Penske's is finding someone who can set them up for the 370z. Sounds like this guy did just that. He found someone who built him what he wanted. They are setup real stiff due to autocrossing. That's what he was doing. Not sure how they would do on the street. On the track they would be awesome. If you are set on JRZ, keep on looking. I am sure Hotrodz knows the right people to get you in touch with.
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This^^^^^^^. Penske's are the gold standard for dampers. Between Penske, JRZ, and AST, I'd go with Penske every day of the week. Only reason I have AST instead of Penske's on my car is I could find someone to work with within the time frame I needed.
The spring rates of those used Penske's are right where you'd want them for performance driving. They'll be a little stiff on the street but nothing that's too hateful to drive. With the Penske valving, they probably actually drive rather well.