Got my suspension in!!!

Forum for Nissan wheel fitment, tire selection, suspension setup and brake discussions.
GuSpeed
Posts: 270
Joined: Wed Dec 24, 2003 4:35 pm

Post

I just got my KYB AGX and Eibach Sportline springs in. I'm a little disappointed! Its a lot better than stock but still doesn't handle as good as I thought it would!! Whats up with that?

I set it on 4 in front and 8 in the rear. By the way what are my choice setup? Like what setup should I run? What can I run without damaging the suspension?


User avatar
SmithSR
Posts: 5021
Joined: Sun Feb 23, 2003 3:16 pm
Car: 240sx

Post

How does it not look good?

about settings: try any/every setting you can, drive on several different surfaces and types of roads to see what delivers best feel for you. I cannot imagine a damper setting doing damage to anything but your spine.

What tires do you use? Expensive sticky tires might be in order as your next upgrade.

GuSpeed
Posts: 270
Joined: Wed Dec 24, 2003 4:35 pm

Post

really those kyb agx and eibach sportline won't wear out shocks fast? or damage it? I read that one this board.

User avatar
SmithSR
Posts: 5021
Joined: Sun Feb 23, 2003 3:16 pm
Car: 240sx

Post

eh, your KYB is your shock.

It's a wear item anyway, and it's available for replacement. I wouldn't worry about wearing out a wear item, as this is natural, like brakes. You use it, it wears out, you replace it.

Are you talking about the ultra-low stance, and the strut piston placement within the housing, bottoming out and voiding warranty?

GuSpeed
Posts: 270
Joined: Wed Dec 24, 2003 4:35 pm

Post

I think thats that it is. Dude you're smart with your words. Wish I could explain things clearly. heheh.

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

you realise you can only acheive a maximum of +3% lateral grip typically by springs and dampers, right?...

-chet

crzycav86
Posts: 3836
Joined: Tue Aug 05, 2003 1:28 pm
Car: 93 Nissan 240SX KAT

Post

Who told you that? ..just curious.

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

It's something I kinda learned, I didnt think the percentage was that low...but it probably is.

since grip is a function of friction, the only thing touching the groud are your tires..thusly grip is a function of tire type, compound, and design more than spring settings, so much as the suspension can keep the tire in contact with the ground(with respect to the tires grip)

this is why all-out race suspensions suck with street tires :) and street suspensions dont do well with race tires....

but, you would get better cornering and handling by just chaing tires than springs/shocks/swaybars...

dennis actually has some kind of math to prove it, but its something "I've seen in test after test....

the funny thing, I've seen "celica stock .83G, hotchkiss celica .96g" and people go "see! look! 10%+ increase!"

...from stock 16" H rated tires to s-03 in a sticky 17"....what did you think would happen? hehehe..make sense?-chet

crzycav86
Posts: 3836
Joined: Tue Aug 05, 2003 1:28 pm
Car: 93 Nissan 240SX KAT

Post

makes perfect sense :)

User avatar
Neejay
Posts: 2256
Joined: Sat Jan 03, 2004 3:50 pm

Post

GuSpeed wrote:I just got my KYB AGX and Eibach Sportline springs in. I'm a little disappointed! Its a lot better than stock but still doesn't handle as good as I thought it would!! Whats up with that?

I set it on 4 in front and 8 in the rear. By the way what are my choice setup? Like what setup should I run? What can I run without damaging the suspension?
I emailed KYB and they said that Sportlines will void the warranty and the minimal setting should be 3 (assuming he meant on the front). And they can tell by any damage on the piston as to how low the drop was with the springs.

I have the AGX's sitting in my room now. I was contemplating on Sportlines. Hows the ride?

GuSpeed
Posts: 270
Joined: Wed Dec 24, 2003 4:35 pm

Post

I don't think it handles that well. **** so my shocks are going be worn out quickly? Should I just set it on the stiffest? 4 in the front and 8 in the rear? Would that be better?

Handling is a lot better than stock. My stock aren't even blown. Not as good as my old 95 S14 with KYB GR2 and sprint springs.

User avatar
s13conv
Posts: 249
Joined: Mon Jun 09, 2003 6:10 am
Car: '86 GT-S Coupe

Post

KYB does not want you to lower your car more than 1" with the AGX. At least that's the way it was a few years ago when I talked to them.

I don't know why they aren't but the AGX don't have a stroke that is short enough for the springs that a lot of people want to run.

I know some people that have really lowered their cars on the AGX with ground control and autocrossed for over 3 years like that and have not had problems. One has raised his car to only about an 1" drop and has had better results probably due to better suspension travel.

LiU
Posts: 683
Joined: Tue Aug 06, 2002 4:11 pm
Car: Cars

Post

like exar said, tires.

User avatar
s13conv
Posts: 249
Joined: Mon Jun 09, 2003 6:10 am
Car: '86 GT-S Coupe

Post

Chet provides some good information. First, I read about the brakes, and now the suspension/tires. I have read and been told about the tires, but it was never really explained.

User avatar
Dori Dori
Posts: 2250
Joined: Fri Nov 15, 2002 4:46 am
Car: Cars of course

Post

Take into consideration that every bushing is your car is probably shot (swaybar bushings included) along with every ball joint. Also, you keep ignoring the question about your tires, so I'm going to assume you're riding on something sh1tty. Basically, get good tires, bushings, and ball joints...if the handling is still below-par, then complain.

GuSpeed
Posts: 270
Joined: Wed Dec 24, 2003 4:35 pm

Post

Yeah sorry. I got some toyo tires in the front and some japan brand in the rear. It grips nice. Even in the rain. Doesn't slide out even if I try to.

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

"Basically, get good tires, bushings, and ball joints...if the handling is still below-par, then complain."

yep....

good quote.-chet

User avatar
Grant@tirerack
Posts: 722
Joined: Thu Jul 17, 2003 9:17 am
Car: Auto racing (AMLS, Cart,F1,IRL in that order), old show rods, classic monster and bad sci-fi movies,
Contact:

Post

Even the basic KYB GR2 struts are beefed up aprox. 15% in an attempt to make up for worn out suspension components. Chet is , as always, right on the $$$. Tires are the best bang for the buck and sticky tires will make those ball joints/bushings work even harder. That's why it's important to keep those things fresh.

User avatar
Dori Dori
Posts: 2250
Joined: Fri Nov 15, 2002 4:46 am
Car: Cars of course

Post

He quoted me though. :(

That's OK. Chet is still a suspension pimp.:pface

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

hahaha. I'm working on it man, theres still so much to learn. I wish i had a skidpad and could measure chsis roll versus grip on it...that'd be a neat graph to see.-chet

User avatar
Dori Dori
Posts: 2250
Joined: Fri Nov 15, 2002 4:46 am
Car: Cars of course

Post

And a fun day!

User avatar
skydragoness
Posts: 9394
Joined: Wed Jul 24, 2002 6:49 am
Car: 03' 350z Touring 6spd
92' 240sx 60k survivor :)
Location: North DFW, TEJAS
Contact:

Post

I found this thread on a search, and let me just say Sportlines are no good for the Agx's. It's been exactly one year, and my front shocks blew. That's with trying to avoid potholes, going really slow over railroad track and everything else. Simply put, they put too much stress on the Agx's, so when they said don't lower a vehicle more than 1.5" they weren't kidding. Thankfully not all four blew at the same time (makes sense the fronts did, since the Sportlines drop the most inches in the front). I have since bought another pair of agx's ( i still think they're great shocks) and i'm taking out my damn sportlines and replacing them with Suspension Technique springs, which lower about 1.5" I don't know how the Koni's hold up with Sportlines, but i'd think they're a better bet.

Anyway, hope that helps

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

Yep, usually when a damper mfr tells you not to do something, theres a reason :)-chet

User avatar
skydragoness
Posts: 9394
Joined: Wed Jul 24, 2002 6:49 am
Car: 03' 350z Touring 6spd
92' 240sx 60k survivor :)
Location: North DFW, TEJAS
Contact:

Post

Yeah, unfortunately, the person/an old friend who installed my setup said to me it wasn't important (the warning)

Grrrr...

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

hahaha, did you kick him in the shin?I would have.....good to know your swapping them out... let me know how the handling changes...-chet

180fan
Posts: 7799
Joined: Sat Dec 14, 2002 12:16 pm
Car: 89 fastback

Post

you could always try to get some Koni's. Those have a lifetime warranty and work really well.

User avatar
skydragoness
Posts: 9394
Joined: Wed Jul 24, 2002 6:49 am
Car: 03' 350z Touring 6spd
92' 240sx 60k survivor :)
Location: North DFW, TEJAS
Contact:

Post

Lifetime warranties are never *unconditional* i checked with TireRack, Koni's policies are similar to KYB's. No one wants to honor a warranty if you blew your shocks due to excessive lowering.

Of course, the Rep from Tire Rack told me that the Koni's are a better bet for my Sportlines, but i wasn't about to take the chance of having $500 shocks blow prematurely because of the Sportlines. Maybe the Koni's are the best for the Sportlines, maybe someone with that spring/damper combo could comment on how their setup is holding up.

Chet: no, i didn't kick him in the shin (at the time, there was plenty of physical violence later), but he's no longer my bf now. :evilhaha

User avatar
Exar-Kun
Posts: 4131
Joined: Fri Sep 27, 2002 1:33 pm
Car: 2005 350Z
Contact:

Post

lol"grounds for divorce: bad car advice"

:p-chet


Return to “Nissan Tires, Wheels, Brakes and Suspension”