Tein Super street vs. Flex coilovers

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Bronze MFP
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I'm looking to purchase one of the above said coilovers, but wanted to know about preload/height adjustments. With the superstreet system, there is no seperate height adjustment, so when you lower you car, the preload on the spring increases, increasing the "bouncyness" of the ride (right? or am I not understanding this concept?)With the Flex, height and preload are seperatly adjustable.

My car is a daily driver that might see autocross duty some day. For a coilover that I have to live with daily, is the seperate height/preload adjustment worth the extra money of the flex system?i'm still trying to figure out how all these adjustments affect ride quality and handling

p.s. I have access to a shop that can corner weight the whole setup, if thats reccomended


Onizuka
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89 Nissan S14 hatch SR20DE

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Preload, I think, means that there is pressure on the spring even when the shock is fully extended. My coilovers do not have this, and the spring can be moved up and down by hand when the shock is fully extended.

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NISMO_RB25
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If your car is a daily then I can assure you that you don't want the Tein Flex. I am actually on here right now looking for some other options, because the tein flex are killing me with every bump in the road. On smooth roads and at the track they are awesome, but for daily they are killer.

chmercer
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err, if tein flex is too hard for you, its probably because you are wearing a skirt. flex is buttery soft.

with a coilover with no preload adjustment, the more you lower it, the more you have to turn up the dampening to keep the car from bouncing. the more you turn up the dampening, the harder the ride will be. so i guess technically, a coilover with dual heigh adjust would be better for daily driving? but then again coilovers with dual height adjust tend to have harder springs.

i have kts coilovers, its fine for daily driving and road trips. done it a hundred times. if you think its too hard/uncomfortable, please go sell your car kthx

Bronze MFP
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i'll probably go with the flex then, right now my spring rates are 5 kgmm front and 4kgmm rear, the flex's are 6 front 5 rear, so not too much harder, and totally livable. I was also looking at the KTS's coilovers, but thought 8/6 was kinda rough... but everyone that has them loves them. still, the EDFC is another huge reason i'm going with tein. I wonder why other companies don't have a similar system out? anyways, thanks for the responses guys

Onizuka
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Car: 91 Nissan S13 coupe SR20DET
89 Nissan S14 hatch SR20DE

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I drive 7f/5r on PA roads. Unless you live in the northeast, your not allowed to complain about bad roads.

chmercer
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8/6 is totally cool for daily. my next set is gonna be 10/8 or 12/10. i guess you wouldnt want that if you arent drifting. o well

Bronze MFP
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No drifting for me, i'd break something and be S.O.L.I'll reconsider the KTS coilovers too, spl parts is a good shop to deal with

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raw0330
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hey, guys-I live in boston and drive my s14 daily with the tein flex and love it. If you want a sport suspention, you have to give up some cushiness. The tein flex system is wonderful with it's adjustments. ever drive a car with just coilovers on shocks? They squeak and rattle like a domestic car.. NONE of those issues with the tein. FYI--the tein flex instructions include your base settings for installation. set them prior to installing, then tweak from there.

Onizuka
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Car: 91 Nissan S13 coupe SR20DET
89 Nissan S14 hatch SR20DE

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I'm probably going to unload my K-sports and go with the KTS units myself, they are affordable and if spl sells them, chances are they are pretty good.


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