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Tein Flex Coilovers for 01+ Civic

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Old Mar 20, 2005
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Tein Flex Coilovers for 01+ Civic

Hi! I'm narrowed it down to which coilover overs I want now and they're the Tein Flex... But I'm wondering why they're so stiff? According to the Tein website at http://www.tein.com/ti/a22.html they're 12kg in the front and 14kg in the rear. Now they're quite a bit stiffer than the RSX and Civic Si version of the Tein Flex... I know they have the same type of suspension and they're heavier... They're 8kg and 10kg... Thanks!
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Old Mar 21, 2005
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Because they designed them that way. Why not call and ask them? We really can't tell you why they are so stiff. If you want them but don't want that stiff then ask for custom spring rates.
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Old Mar 21, 2005
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Yea, I was also looking at these coilovers and noticed the same thing. SUPER STIFF rates. I know you can get them in different rates, but does anyone know why the "standard" rate is so stiff? Ayone have a set? If so, how do they ride? Thanks, AJ
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Old Mar 21, 2005
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Originally Posted by boostaddict
Yea, I was also looking at these coilovers and noticed the same thing. SUPER STIFF rates. I know you can get them in different rates, but does anyone know why the "standard" rate is so stiff? Ayone have a set? If so, how do they ride? Thanks, AJ
I just ordered the flex and should have them installed in a week or so. I'll let you know then.
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Old Mar 21, 2005
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rijoeysock has em
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Old Mar 21, 2005
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yeah ask riley. he's apparently changing out the front springs to 10kg.
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Old Mar 23, 2005
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yeah i like em but fronts r too stiff ima go to a 10kg/mm

to increase stopping traction and decrease harshride.

the 14kg/mm rear is not replaceable tho..
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Old Mar 23, 2005
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bunch o' bitches... i love the ride...
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Old Mar 23, 2005
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does anyone know why the "standard" rate is so stiff?
Because racetracks are smooth. You can run shitloads of spring as long as the damper can handle it and you've got R compounds holding onto the track. Race prepped DC5s are running spring rates in excess of 2000 lb-in on some circuits because thats what it takes to balance the car. A lot of Tein models have been pulled from the US market or never put up for sale here because our roads are so horrible. I wouldn't be surprised in a few months if they backed off the rates. I believe Riley said you can order them with whatever rates you want, but if you want softer, The SS-P came out with all the features except the adjustable length shock body.
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Old Mar 23, 2005
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my roads in fl are very nice just random spaces of road arent very well... so thats why im going w/ 10's

the flex u can go up/down 2kg/mm on front but rear HAS to be 14's becuase the rearsprings r so short the only ones they made that size are 14kg/mm

i feel that with my 10's FRONT THE RIDE will be alot better..i know ill have more oversteer ut i can dial it down by stiffening front more.. the rear isnt harsh at all.. so i thin its just cause the weight of engine... maybe im talking out my butt.. im watching tv at same time.

riley
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Old Mar 23, 2005
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Actually Riley, the rears have more effect on the comfort than the front does. The less weight/higher rate makes the back a lot harder than the front, which has the weight of the drivetrain helping to dampen it out. I got a much bigger quality difference changing out the rears a little bit than I did swapping fronts for a lot lower rates.
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Old Mar 25, 2005
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Originally Posted by Boilermaker1
Because racetracks are smooth. You can run shitloads of spring as long as the damper can handle it and you've got R compounds holding onto the track. Race prepped DC5s are running spring rates in excess of 2000 lb-in on some circuits because thats what it takes to balance the car. A lot of Tein models have been pulled from the US market or never put up for sale here because our roads are so horrible. I wouldn't be surprised in a few months if they backed off the rates. I believe Riley said you can order them with whatever rates you want, but if you want softer, The SS-P came out with all the features except the adjustable length shock body.
But the thing is the Tein Flex aren't hardcore race coilovers... They're suppose to be comfortable on streets and able to race with.

Quoting from http://www.tein.com/flexdamp.html "TEIN Type FLEX damper kit was designed to provide driving comfort and sports performance with its full-length adjustment system. We have incorporated separate height and preload adjustments, which allows you to have various set-ups to meet different road conditions. The FLEX Damper kit includes pillow ball upper mounts and is compatible with the EDFC, for maximum performance for the streets."

If you look at all the Flex applications, the EM2 Civic has the highest spring rate out of every car basically. Which doesn't really make sence... I should really call them or something on it...
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Old Mar 31, 2005
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Originally Posted by tamazoid
But the thing is the Tein Flex aren't hardcore race coilovers... They're suppose to be comfortable on streets and able to race with.

Quoting from http://www.tein.com/flexdamp.html "TEIN Type FLEX damper kit was designed to provide driving comfort and sports performance with its full-length adjustment system. We have incorporated separate height and preload adjustments, which allows you to have various set-ups to meet different road conditions. The FLEX Damper kit includes pillow ball upper mounts and is compatible with the EDFC, for maximum performance for the streets."

If you look at all the Flex applications, the EM2 Civic has the highest spring rate out of every car basically. Which doesn't really make sence... I should really call them or something on it...

Interestingly enough, when my flex coilovers arrived i read the instruction guide, and it had said that the flex were for off-road use only and shouldn't be driven on public roads.

Go figure.
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Old Apr 1, 2005
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Originally Posted by ManUtd0018
Interestingly enough, when my flex coilovers arrived i read the instruction guide, and it had said that the flex were for off-road use only and shouldn't be driven on public roads.

Go figure.
but i say almost everything aftermarket would say it would be off-road use... i think they put that on so you can't sue them for anything when you drive on the street...
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Old Apr 2, 2005
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Originally Posted by tamazoid
But the thing is the Tein Flex aren't hardcore race coilovers... They're suppose to be comfortable on streets and able to race with.

Quoting from http://www.tein.com/flexdamp.html "TEIN Type FLEX damper kit was designed to provide driving comfort and sports performance with its full-length adjustment system. We have incorporated separate height and preload adjustments, which allows you to have various set-ups to meet different road conditions. The FLEX Damper kit includes pillow ball upper mounts and is compatible with the EDFC, for maximum performance for the streets."

If you look at all the Flex applications, the EM2 Civic has the highest spring rate out of every car basically. Which doesn't really make sence... I should really call them or something on it...
They only say that so they can sell more of them because they are expensive. Anyone who really knows about spring rates and pillowballs will tell you that 12/14 and pillowballs are not comfortable. But for the stupid ricers who want "the best" and do now know any better, Tein says that the flex are great on the street. I am sure they are great on the highway at 50+ because my JICs are great on the highway. They suck on bumpy, shitty roads and I am only at 8/9.
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Old Apr 2, 2005
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today i lowered front spring rate to 10kg/mm and rears r srill 14kg/mm and they ride amamamazing.. they are super comfortable on the street the oversteer is a little tomuch but i just need to redo my edfc presets..

highway driving was always nice

if u order flex order 10/14 unless u want super hard fronts
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Old Apr 2, 2005
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Originally Posted by robbclark1
They only say that so they can sell more of them because they are expensive. Anyone who really knows about spring rates and pillowballs will tell you that 12/14 and pillowballs are not comfortable. But for the stupid ricers who want "the best" and do now know any better, Tein says that the flex are great on the street. I am sure they are great on the highway at 50+ because my JICs are great on the highway. They suck on bumpy, shitty roads and I am only at 8/9.
but just because you have high spring rate doesn't always mean it's a harsh ride... it also has a lot to do with the shocks or dampers...
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Old Apr 3, 2005
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Originally Posted by tamazoid
but just because you have high spring rate doesn't always mean it's a harsh ride... it also has a lot to do with the shocks or dampers...
Harsh, no. Rough yes. High spring rates invariably bring rougher rides, whether the ride is harsh is determined by the damper so you are correct. Regardless anything over 600lbs will make your teeth chatter!
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Old Apr 3, 2005
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right now i have 10kg/mm front and 14kg/mm rear and the dampers are set to mediocre firmness on 215/35/19 and they ride smooth as a baby's bottom.lol


i love the ride.. its soft and it handles amazingly..
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