RS*R race springs VS Kyb Agx!!!

[gotime242]

Hey all, after a while of searching, i have concluded that the rs*r race springs with 5kg/ 4.5 spring rate are the springs for me.

Now the only problem is, i have rear that the kyb agx's might not be able to stand up to these springs due to them being sooo stiff. Does anyone on here have any experiance pairing these two items up? And what was the outcome? I kow some people are running around on them, so i just want to know how thats going.

Also, if the kybs arent up for the job, then what is? Who else makes a decently affordable set of struts that can take on such a task. Koni's? But they ahve to be taken off just for tunning.

Finally, if anyone has pics of an s13 with rsr race springs, feel free to post them!!

Thanks!

-Dylan

[Yoshi]

wow. what a confusing post.
first off 5k/4.5k springs are NOT "sooo stiff". 8k/7k, THATs stiff (or 9k/8k, say bibi to your kidneys). As far as using AGX dampers, AFAIK, the only reason you might not want to use these (and this can be said of any damper) is if the drop is too low, requiring a short stroke damper. The whole point of getting AGX is the adjustable viscosity rate, otherwise you might as well get GR-2s or trash some OEMs.

You didn't include in your post what your application is... street? strip? drift? autoX? You should pick your suspension based on what you'll be doing most. If I were to guess by looking at your setup that you want, I'd say this is just a higher performance street car, maybe some drag thrown in.

On the Koni's, it depends on which line you're talking about, I could be wrong, but I thought that only the old Koni Yellows had to be removed to be adjusted...

[gotime242]

I re-read it, it didnt seem too confusion. I did say "rear" instead of "read" however.

Anyway, this will be a highperformance street car. I will do autocross, drift, and drag, but not exactly building the suspension do match only one of those. Just what ever is a good, stiff spring/strut set-up.

[Var]

The RSR race springs have a 1.4 inch drop. This is in the perfect operating range for the KYB AGX. They can easily handle those spring rates. I got a little bit stiffer and lower on my ground controls and they work perfectly. If i had known about the RSR race springs before i bought my ground controls, i would have bought them instead. Sounds like a really good shock/spring combo.

[gotime242]

Thanks for the input man.

How long have you had your setup, what do you have the struts set on? And what would you say the spring rate of your ground controls are?

[h3x11]

Originally posted by -zeroCool-
Hey all, after a while of searching, i have concluded that the rs*r race springs with 5kg/ 4.5 spring rate are the springs for me.

your choice springs + agx is a great combo.

seriously 5/4.5kg isn't stiff.

[nrcooled]

I have the AGXs and HKS kg/mm springs and the shocks hold up fine. The HKSs are pretty stiff (7 front/6 rear) Still a "not so punishing" ride.

I do have to set the AGXs to full stiff front and rear to handle the springs though

[OptionZero]

as you can see in my sig, i have the RS-R downs, with KYB's, and the ride is very streetable. Bumpy for a near-stock ride, but tolerable.
I had been riding on 3/4ths front and 5/8ths rear settings on the KYBs, it was entertaining...until one day i put it full stiff all around. Driving Turdz stock s14 and then mine back to back, you can already feel a significant drop in body roll, the ride was much much flatter.

With the race springs, you can only imagine how much better it'll be.

For mine, on the freeway, at speed, when there's a bend in the road..particularly a sweeping S, you can feel some roll during the transition, but i think a sway bar set would eliminate even that.

Damn, i can't imagine you folks riding on 8/6 or 9/7kg coil overs...it must hurt like hell to get groceries! ah....

[gotime242]

So you ride around on full stiffness with the kybs now all the time, right?

[OptionZero]

Yep. Fun

[Var]

Originally posted by -zeroCool-
Thanks for the input man.

How long have you had your setup, what do you have the struts set on? And what would you say the spring rate of your ground controls are?

The best setup for the AGX is 2/4 front and 6/8 rear. Any stiffer and the front wants to understeer. That's the reason i didnt get stiffer springs in front. The agx work best at certain operating ranges. They arent super shork stroke either...so anyways. My spring rates are 375/front and 250/rear which translates to about 6.7K front and 4.47K rear. I run 2/4front and 6/8 rear all day. the other day i decided to see what 3 felt like...it felt like crap. understeer central.

[OptionZero]

you don't feel the car lean into turns (body roll)? This could of course, be the fact my springs are 3.3 kg/mm front/3 rear, far softer than yours. I need sways. HURRY UP RS-R

[nrcooled]

My setup may differ from everyone else considering that I have HICAS which almost eliminates understeer and corrects for oversteer. Any softer on my settings and the HICAS felt unpredictable. Now the setup is wonderfully predictable.

[OptionZero]

Ah, didn't see that you had an S13, my bad.
I could use an LSD, too:bash:

[the240sxer95]

which of the rsr line up is the stiffiest? and which hks are you referring to?

[Wei240]

well, i have a s13 with rsr's, but i'm pretty sure i have the down springs and not the race springs (i have the black colored ones, wish it was the blue ones though - they didn't sell those for the s13 back then), and i had it since summer of 2000, at that time i didn't know what shocks/struts were good (didn't really know fa/zilvia, so i based my choice on the old school 240sx.org review list) so i got the tokico blues, it's non adjustable (suck) and somewhat pricey (double suck) and now i'm not sure if it's blown (suck times 3)...
as far as driving goes, i sometimes think it's too stiff even though alot of y'all don't think so, i'm getting old.. been in other comfy cars...
but i also have f/r strut bars, and a t/c rod upgraded bushing from pdm so that my cause it to be more stiff.

i'll post a pic sometime later if you want to see what the rsr down looks like on a s13...

[OptionZero]

RS-R Sus Down is the street application
RS-R Race is the...well...race

[Var]

Originally posted by OptionZero
RS-R Sus Down is the street application
RS-R Race is the...well...race

Naw man they are both street springs in my opinion. If i had a track car i'd be running way way way stiffer than just 5K in the front. Im already running 6.7K and it's easily streetable. It's just preference. When you talk race cars....try like 10-15K

[OptionZero]

I think you misunderstand, i meant in relative terms.

Of the RS-R spring lineup, the Sus Downs are street, the Race ones are race.

If you were truly serious about goin to the track you'd get coil-overs.
Who makes a 15kg spring?!!

Don't most people here run Tein HE's w/ 9/7 front rear?

[Var]

Originally posted by OptionZero
I think you misunderstand, i meant in relative terms.

Of the RS-R spring lineup, the Sus Downs are street, the Race ones are race.

If you were truly serious about goin to the track you'd get coil-overs.
Who makes a 15kg spring?!!

Don't most people here run Tein HE's w/ 9/7 front rear?

yes relatively speaking they are "sportier" but still made for street use in my opinion, or they would be marketed differently. Ground control kit come with spring rates up to 25K if you need em...obviously too stiff for a 240 but ive seen a Viper race car with 900 horsepower that was running 18Kfront and 25K rear at the car show. As far as most people using tein HE's i dont know what everyone uses. Probably teins and jic hks good brands but most of these are drift cars and not race cars....ok ive gone on about this for too long.. sorry for the misuderstanding

[Bliss]

Originally posted by westboroughpimp
Naw man they are both street springs in my opinion. If i had a track car i'd be running way way way stiffer than just 5K in the front. Im already running 6.7K and it's easily streetable. It's just preference. When you talk race cars....try like 10-15K

what springs/coilovers are u using to be at 6.7K? And thats all the way around?

[OptionZero]

like i said, the race ones are relatively racier, the sus downs are streeter.

Its pretty obvious the original poster isn't going to be hardcore enough to go track his car alot, otherwise he would be looking up specific spring rates rather than what the manufacturer names the product.

I mean, is a ViS Drift bumper really a drift bumper? lol..maybe it is, cuz its so crappy and cheap you don't mind cracking when you drift:aw:

Anyways, semantics.

Sus Down = 3.3/3
Race = 5/4

With sway bars, will hold decently for occasional track use, and be tolerable on thr street.
You wanna take it to the track, get coil-overs with adjustable dampening force and something liiek 8/6 or 9/7.

There's no way in hell a 240 takes much stiffer than that unless you never intend to drive to get groceries ever again! :)

[gotime242]

Actually, as the original creator of this thread, i really dont care what they are called, i was only looking at the rates that they had. They seem to be of the highest rate that you can get in a spring, and 5/4.5 sounds good to me. I would care if they called them Rs*s go-slows, i would still want to know how they match up with agx's...

[rco8786]

This is the exact setup I have on my car currently...it rides nice and handles nice. don't worry about the kyb's not being able to handle it..they will be fine.

[gotime242]

What do you have your struts set at?

[Var]

Originally posted by Bliss
what springs/coilovers are u using to be at 6.7K? And thats all the way around?

Ground Controls. Their springs come any rate you want. If you read my post i said i have 6.7K front and 4.5 rear.

[gotime242]

I saw an s13 today, and drove next to it for a long time studying it. Man, yall have a lot of wheel gap.

Can i please see some pictures of your cars (s13) with these rs*r race springs, i would really like to see the drop, as i am concerned with wheel gap.

Maybe i shoudl look into ground controls as well, but they can only go as far as 2" down right?

Please!! Pics of rsr race!!

[OptionZero]

Jspec.com's 180sx ahs RS-R springs i think

[Wei240]

man, have a hard time trying to upload photos in zilvia, couldn't get it to work, so hopefully this would work:

http://us.f2.yahoofs.com/users/3f5a9a62_1213c/bc/car/__sr_/5.jpg?bc9Rfo_AvZjlhkEW

[JuJuBee]

Originally posted by OptionZero
Jspec.com's 180sx ahs RS-R springs i think

man, with all the shit they have in their car, i would expect it to have full coilover setup

[Var]

Originally posted by -zeroCool-
I saw an s13 today, and drove next to it for a long time studying it. Man, yall have a lot of wheel gap.

Can i please see some pictures of your cars (s13) with these rs*r race springs, i would really like to see the drop, as i am concerned with wheel gap.

Maybe i shoudl look into ground controls as well, but they can only go as far as 2" down right?

Please!! Pics of rsr race!!

KYB's are setup to work with a 1.5 inch drop..max. If you go any lower the warranty will be void, your suspension may bottom out, and your car's over all handling wont be as good. I dont see why the wheel gap is more important that the handling. If you want a super low ride you may want to look into something else. or get bigger rims.