Tein s-tech vs. Hotchkis sport spring
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iight guy heres the question, i have used the search button and have found many things on the tein springs but not much on the hotckis i only want about a .7 or .8 inch drop in the front and possible the same in the back....the tein caught my eye,.. but the front is .7 and the back is .6 ...i wanted more in the rear..so thats where the hotchkis kit comes in...what do you guys reccomend for my problem. Any problems, issues with either of the kits. and does anyone have any pictures. Please help i wanna order springs today.
P.s i have 18X8.5 front 18X9.5 rear rims
Thanks
Joe
P.s i have 18X8.5 front 18X9.5 rear rims
Thanks
Joe
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If you car has the unrevised suspension, I'd go Hotckis.
If your car has the revised suspenison, I'd go S-tech.
Why?
Because of how the oem shocks differ between the two suspension's. Problem is, 2004 car's can have both oem setups.
To find out what you have take a look at your rear shocks and see if they have the same smooth non ribbed dust shields and shock part number stickers (see the yellow on the labels) as seen in the pic below. If they do, you have the revised suspension,. If not, they you have the unrevised suspension.
If your car has the revised suspenison, I'd go S-tech.
Why?
Because of how the oem shocks differ between the two suspension's. Problem is, 2004 car's can have both oem setups.
To find out what you have take a look at your rear shocks and see if they have the same smooth non ribbed dust shields and shock part number stickers (see the yellow on the labels) as seen in the pic below. If they do, you have the revised suspension,. If not, they you have the unrevised suspension.
![](http://pics.montypics.com/gcoupe35/2007-03-31/1175403852_3shock.jpg)
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Originally Posted by Gsedan35
If you car has the unrevised suspension, I'd go Hotckis.
If your car has the revised suspenison, I'd go S-tech.
If your car has the revised suspenison, I'd go S-tech.
Oh and were the S-techs designed around the revised suspension.
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now im confused because the drivers side date says 02/04 but the stickers on the front stocks look excatly like the ones in ur pictures..idk if this has anything to do with it but i have the knee pads on either side of the radio consel ..i thought only 04.5 had those.........
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Originally Posted by Ztouring04
now im confused because the drivers side date says 02/04 but the stickers on the front stocks look excatly like the ones in ur pictures..idk if this has anything to do with it but i have the knee pads on either side of the radio consel ..i thought only 04.5 had those.........
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Originally Posted by Gsedan35
You have the revised suspension. The unrevised shocks do not have any stickers applied to them, the shock part numbers are stamped into the steel case the fact that you say the stickers on the front shocks pretty much seals the deal. And since your rear dust shields are smooth vs having ribbing on the outside likely mean's rear stickers simply fell off.
I must say you diffently know your stuff....Thank you for all your help i will be ordering the tein s-tech springs with the intensepower rear chamber kit....Thanx again
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Originally Posted by Sensi09
I know the hotchkis springs were designed with the older suspension in mind, but it seems that people with the revised shocks have been pleased with the Hotchkis springs.
Oh and were the S-techs designed around the revised suspension.
Oh and were the S-techs designed around the revised suspension.
The Hotchkis setup has specific tuning where the rear rates are lower to try and extract better behavior as a reslut of less then ideal shock control on the unrevised suspension's shocks. That doesn't mean they won't work well on the revised suspension too. IMO however, when someone is considering both springs and they do have the revised suspension, IMO the S-tech's higher spring rates represents a better choice.
Unrevised spring rates 2003-2004
314/342
Revised spring rates 2004.5-2007
314/427 (rear shock dustshields/bump stops differ, with a soft foam insert added to the bumpstop makeup) Front sway's are 17% stiffer as well.
Hotchkis 350Z Linear springs .6”/.8”
Spring rates in lbs 340/330
Tein S-tech 350Z springs .7“.6“ (fronts are slightly progressive, rears are linear)
Spring rates in LBS 386/402 (estimated front intial rate is 327lbs)
In their own word's here is why the Hotchkis setup has the rear rates set lower then oem. Remember, they are talking about issues dealing with the unrevised 03/04 oem shocks. The reply was a email sent to a member here that I thought should be saved.
09-01-2004 06:34 AM
VandyZ
Here is an email I got from John Whatley of Hotchkis:
quote:
There is no error on the spring ratings. The rear spring is in fact softer than the stock. The reasoning behind this is that: during testing we found that the rear end likes to bounce under hard cornering. By reducing the spring rate in the rear we were able to get more MPH in slalom testing and stopped the bouncing that occurred. These springs in conjunction with our swaybars will be matched with each other to provide a neutral feel under hard cornering.
Last edited by Gsedan35; 04-08-2008 at 07:50 PM.
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Gsedan35: I was wondering ..since you helped me pick out my spring setup( by the way i just ordered them lol).....if i was wanted to run a 25mm rear spacer and 20mm front spacer..which do u recommend HR?........I think those size spacers would look nice...i may have to roll the reara fender but thats not a problem.....Any insight...Thanks
Joe
Joe
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Originally Posted by Ztouring04
Gsedan35: I was wondering ..since you helped me pick out my spring setup( by the way i just ordered them lol).....if i was wanted to run a 25mm rear spacer and 20mm front spacer..which do u recommend HR?........I think those size spacers would look nice...i may have to roll the reara fender but thats not a problem.....Any insight...Thanks
Joe
Joe
I have used H&R and Eibach, both are great.
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Originally Posted by Gsedan35
I have used H&R and Eibach, both are great.
Thanks i personlly like the eibach...im gonna measure and either run 25mm or 20mm rear and 15mm or 20mm fronts
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I have hotchkis (PPW) and my buddy has Eibach (Blk). I have had no problems with the Springs, its the friggen sway bars that I wanna chuck against the wall (i.e. Clunking, endlinks
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Originally Posted by Gsedan35
You have the revised suspension. The unrevised shocks do not have any stickers applied to them, the shock part numbers are stamped into the steel case the fact that you say the stickers on the front shocks pretty much seals the deal. And since your rear dust shields are smooth vs having ribbing on the outside likely mean's rear stickers simply fell off.