Question on Lowering my 86' Z31 - Nissan Forum
Z31 300ZX(T) 1984-1989 Zs - Engine and Chassis Discussion

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#1 Old Nov 29th, 2004, 10:16 PM
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Red face Question on Lowering my 86' Z31

Im about to lower my Z31 soon [ 2-3 weeks or so ] after I save a little bit of money, and was going to purchase the ST [ Suspension Techniques ] Springs for my car to lower it as well as give it a stiffer ride. But I read on this Page over at Z31 http://www.z31.com/springsshocks.shtml and it says "If you get harder springs you also need firmer shocks to hold the springs."

Well the ST Springs will lower my car 1 inch, as well as make my suspension from 136/140 [ Front/Back ] to 200/226 [ Front/Back ] weight.

Will I need to correct my camber if the drop is only 1 inch?
Can I just keep stock camber, and how bad will my camber be?

Also do I need new shocks cause it states that the stock shocks cant hold stiffer springs.

Im confused, someone please help.

Any pics as well of cars with ST springs?
Thanks again.
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#2 Old Nov 30th, 2004, 07:49 AM
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Yes you need new shocks. Putting performance springs on stock struts/shocks is simply stupid. The spring rates are more then the stock struts and shocks can handle. Get either the Tokico Illuminas or the Blisten struts and shocks.

As far as camber it seems to depend on the condition of the car. Some need to have the camber modification done http://www.az-zbum.com/modification....e.camber.shtml


Some cars though don't need to have the camber fixed; it just depends on the car.

Zpooled Zo Zya
#3 Old Nov 30th, 2004, 09:18 AM
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holy....

If I bought everythign and needed new camber, there is simply NO WAY of me being able to do that "custom" mod, its a "buy it" or dont touch it type of thing, especially when ive never seen a welder in my life.
#4 Old Nov 30th, 2004, 09:53 AM
z31
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Quote:
Originally Posted by BoBakTXL
holy....

If I bought everythign and needed new camber, there is simply NO WAY of me being able to do that "custom" mod, its a "buy it" or dont touch it type of thing, especially when ive never seen a welder in my life.
pay someone to do it, or live with the camber. ST springs on my 85 gave me 2.5-3 degrees of camber. I'm sure replacing the bushings would've helped it out a little though.

David Wright
1988 Nissan 300ZX Turbo SS
1998 Audi A4 1.8TQ - the winter beater
1990 VW Cabriolet - GF's new project :)
#5 Old Nov 30th, 2004, 10:07 AM
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I would take it somewhere and have it done then if you can't weld. You might not have the problem it doesn't always occur it seems to just be dependant on the condition of the car. I wouldn't try living with to much camber out back it will kill your tires and it can hurt performance.

Zpooled Zo Zya
#6 Old Nov 30th, 2004, 10:54 AM
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I will have a picture of my car done-- hopefully in like a couple weeks or whenever I get the time to do everything at once.

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#7 Old Nov 30th, 2004, 10:55 AM
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Im doing the suspension tech springs by the way-- with tokico illuminas.

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#8 Old Nov 30th, 2004, 10:57 AM
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I'm not convinced of the longevity of the Illuminas. Anyway, I'd sooner spend the money on the Bilsteins and not worry about getting them dialed in right. Because you can really screw up the cars handling dialing in the wrong settings on the Illuminas.

1992 Yamaha FZR 1000. 145 Hp, all stock..
#9 Old Nov 30th, 2004, 12:27 PM
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The illuminas are pretty good. I finally think I have decided to go with them. Todd where did you get yours from and how much. I can pick up Blistens for about 430 and illuminas for about 400. If you don't mind me asking how much you had to spend.

Zpooled Zo Zya
#10 Old Nov 30th, 2004, 02:03 PM
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Quote:
Originally Posted by JAMESZ
The illuminas are pretty good. I finally think I have decided to go with them. Todd where did you get yours from and how much. I can pick up Blistens for about 430 and illuminas for about 400. If you don't mind me asking how much you had to spend.

Heh...I got a full set of illuminas for $200, good luck finding them that cheap
#11 Old Nov 30th, 2004, 03:14 PM
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I just went with the ole Tokico's. The non-adjustable bolt ins.

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#12 Old Nov 30th, 2004, 07:45 PM
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Quote:
Originally Posted by SKD_Tech
I just went with the ole Tokico's. The non-adjustable bolt ins.
what are you doing for springs?? If you are using The ST's you at least need Illuminas to handle that strong spring rate...If not you'll have bad results.
#13 Old Dec 1st, 2004, 12:40 AM
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Quote:
Originally Posted by Domdogg123
what are you doing for springs?? If you are using The ST's you at least need Illuminas to handle that strong spring rate...If not you'll have bad results.
Not everyone goes the ST route.

Zpooled Zo Zya
#14 Old Dec 1st, 2004, 09:15 AM
z31
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Quote:
Originally Posted by B@lliZtiK
I'm not convinced of the longevity of the Illuminas. Anyway, I'd sooner spend the money on the Bilsteins and not worry about getting them dialed in right. Because you can really screw up the cars handling dialing in the wrong settings on the Illuminas.
bilsteins also can be rebuilt to whatever spec you want.

I've got over 30k miles on the ones in my SS, so they seem to hold up pretty well.

David Wright
1988 Nissan 300ZX Turbo SS
1998 Audi A4 1.8TQ - the winter beater
1990 VW Cabriolet - GF's new project :)
#15 Old Dec 1st, 2004, 01:17 PM
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Quote:
Originally Posted by z31
bilsteins also can be rebuilt to whatever spec you want.

I've got over 30k miles on the ones in my SS, so they seem to hold up pretty well.
Just that a couple people I have talked to had shock "blowouts" with the Illuminas, perhaps this was because of bad roads or maybe a defective shock. However, I've heard absolutely nothing bad about the Bilsteins, so that's the way I may go.

1992 Yamaha FZR 1000. 145 Hp, all stock..
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