ZR vs. Z rear coil springs

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08-30-2007, 01:42 PM

gunslinger

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ZR vs. Z rear coil springs

The rear springs for the roadsters have different part numbers than the rear springs for the Z coupe. I've yet to see an explanation why. Anybody know? Are they really different?

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08-30-2007, 02:03 PM

Built2shredZ

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The rear springs on the ZR might be a tad stiffer because of the added weight (reinforcement and roof mechanism)... Otherwise I'm not sure...

I used the Nismo Suspension (coupe) on my Roadster and haven't had any problems.

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08-30-2007, 08:10 PM

gunslinger

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Quote:

Originally Posted by Built2shredZ

Everything I've found has pointed to the springs being the same stiffness (Rear = 342 from 03-04 and 427 from 04.5 on).

My 04 ZR has stock springs and I think it's lower than stock coupe's. Which makes me think that maybe the spring length is different?

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08-30-2007, 10:08 PM

Built2shredZ

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It could be there just the same but since there for different model cars they give them different numbers, even tho there the same...

Otherwise the Coupe Nismo Suspension Kit I got wouldn't of lowered my car..

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08-31-2007, 09:30 AM

Zazoozle

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I was wondering about the roadster suspension too... I just bought hotchkis springs and sways to put on this weekend...am I right to assume I won't have any problems?

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08-31-2007, 09:31 AM

iStan

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You will have no problems with your sways. I imagine springs will be fine too

Last edited by iStan; 08-31-2007 at 09:34 AM.

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08-31-2007, 09:33 AM

dutchboy350Z

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From my understanding the springs are the same but the roadster sit a tad lower because it weighs about 200 pounds more.

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08-31-2007, 11:13 AM

gunslinger

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Quote:

Originally Posted by Zazoozle

I was wondering about the roadster suspension too... I just bought hotchkis springs and sways to put on this weekend...am I right to assume I won't have any problems?

You'll have no problems with either. Even if there was a slight difference between zr and z springs, I doubt you'd notice anyway.

I also want to point out that it's not just the part number that's different. The springs are also marked differently. Which makes no sense at all if they're the same.

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08-31-2007, 01:28 PM

Zazoozle

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Sweet, thanks everyone - Arg! I'm on the edge of my seat today cuz I can't wait to leave work to go work on my car!

once I get my Zr a little more modded, I'll post some nice pix!

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