I couldn't find any spring rates for sportline, are they progressive?
which spring would handle better, if all were coupled w/ AGX?
btw, what's the lowest drop the aGX would handle w/o problem?
I know these questions have been beat to death... but couldn't find any posts that fully answers my questions
stech vs. sportline vs. pro kit
All three of those springs are progressive. The S-Tech is not linear. Tein only lists the max rate for the spring.
The AGX warranty is void if you drop more than 1.5 inches over stock height. That's a good rule-of-thumb to use as far as "too low" goes. All three of those springs should be okay to use with the AGX. Sportlines drop the car pretty far, but people don't appear to have had any significant problems with them yet. If you want a bigger drop than these springs offer, like a full-blown RS*R spring, you'll need a shock with a shorter travel, like a KYB Buzz Spec.
Myself, I would opt for the PK, as I don't care for big drops. Handling-wise I would say the S-tech or PK are your best bet.
The AGX warranty is void if you drop more than 1.5 inches over stock height. That's a good rule-of-thumb to use as far as "too low" goes. All three of those springs should be okay to use with the AGX. Sportlines drop the car pretty far, but people don't appear to have had any significant problems with them yet. If you want a bigger drop than these springs offer, like a full-blown RS*R spring, you'll need a shock with a shorter travel, like a KYB Buzz Spec.
Myself, I would opt for the PK, as I don't care for big drops. Handling-wise I would say the S-tech or PK are your best bet.
no problem 
you should get in touch with the atlanta 240 guys...Im a part of it, and since you're around here, check us out!http://www.240sx.org/atlanta-chet
you should get in touch with the atlanta 240 guys...Im a part of it, and since you're around here, check us out!http://www.240sx.org/atlanta-chet
Meantime wrote:If you want a bigger drop than these springs offer, like a full-blown RS*R spring, you'll need a shock with a shorter travel, like a KYB Buzz Spec.
The RS-R Down springs give a pretty hefty drop, the RS-R Race do not. The Race are also stiff...reallly stiff. A few guys over at FA have paired the RS-R Race up with AGX's. I guess time will tell if the spring is too much for the AGX's.
there are the specs for the Rs*r race springs...they are $230 at phase2motorsports
S13 - Front: 1.4" Drop (5kg) / Rear: 1.2" Drop (4.5kg) S14 - Front: 1.4" Drop (5kg) / Rear: 1.0" Drop (4.2kg)
that's a pretty small drop, so the aGX should be able to handle them right? what about the spring rate, would that be a problem for the AGX?
S13 - Front: 1.4" Drop (5kg) / Rear: 1.2" Drop (4.5kg) S14 - Front: 1.4" Drop (5kg) / Rear: 1.0" Drop (4.2kg)
that's a pretty small drop, so the aGX should be able to handle them right? what about the spring rate, would that be a problem for the AGX?
hey I send an email to KYB and they replied that the rs*r race springs -->S13 - Front: 1.4" Drop (5kg) / Rear: 1.2" Drop (4.5kg) S14 - Front: 1.4" Drop (5kg) / Rear: 1.0" Drop (4.2kg)
void their warranty...
but I was tinhking since people use coilovers like gorund ccontrol w/ the AGX w/ springs that are stiffer, the AGX would hold the rs*r race springs right?
Bad Mojo what's FA? I wanna know if their rs*r race spring combination w/ AGX works well
void their warranty...
but I was tinhking since people use coilovers like gorund ccontrol w/ the AGX w/ springs that are stiffer, the AGX would hold the rs*r race springs right?
Bad Mojo what's FA? I wanna know if their rs*r race spring combination w/ AGX works well