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Front ones are a slightly heavier gauge 'wire' - and a bit longer. Put the "wide" end (more spacing between coils) down. You should see an "F" and an "R" stamped on each coil.
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'93 B13, etc.
If you don't have the patience
to do it right the first time,
how is it you have the time to
do it over and over again?
yours say sr20de mine say sr20forum... weird, but as for instalation the side that is more wound sould go to the top, if you could read the letters they should be upside down
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Jason
'93 NX2000: Projector Headlight Swap, AGX, Whiteline LCAB, B&M Style Short Shifter w/ ES Bushing, 17x7 Driftz Design 506 Venom w/ Nitto Neogen , AT RSTB, Cusco FSTB, Hyperco Gen II, Taylor Thundervolts, JWT S4, UR Crank and W/P Pullies, SSAC 2.5 Header, JDM Intake Mani, Cusco Camber Plates.
I got a fever, and the only prescription... is a DET!
Also, as far as how the lettering was stamped. Let's just say they didn't have high paid employees doing it. So they weren't always right side up etc. And there were different things stamped on them through the various runs.
omg ive ben looking for that picture for a year!!!!!!!!!!!!!!!!!!!!!!!!!!
Quote:
Originally Posted by chriscar
Here you go. Rear spring on the left, front spring on the right.
C
i finally know what springs i have!!!!!! they have the same lettering as those!!1i got all 4 kyb agx's with thoose springs from a donor 93or94 blue classic .thers a junkyard by my house for and i paid only 150$ dollars for em
yours say sr20de mine say sr20forum... weird, but as for instalation the side that is more wound sould go to the top, if you could read the letters they should be upside down
There's been tons of debates about this on the forum. Hell, I don't even remember which was is "right". In the end, I don't think it makes much difference.
I spoke directly with the Hyperco engineer who designed them when I was installing mine. The more tightly wound end goes up. When the spring is responding to road changes (i.e., bumps), you want the 'soft' end of the progressive spring to respond first, so you want it, if you will, closest to the bump. If it has to wait for the energy to transmit through the high rate end of the spring, response will be slower and ride will be harsher. If you look at any factory installation of progressive rate springs the low rate end of the spring will be "down."
That being said, the engineer said you'd be hard pressed in normal driving to feel the difference if you had two identical cars with one 'upside down.' My guess is that it'd make a HUGE difference if you were racing competitively, (maybe a half second or second a lap on a relatively smooth course like Road Atlanta, more on a rough course like Sebring), but anyone racing is going to run coilovers anyway.
Jer
Last edited by jerryeads : 03-07-2007 at 01:27 PM.
I spoke directly with the Hyperco engineer who designed them when I was installing mine. The more tightly wound end goes up. When the spring is responding to road changes (i.e., bumps), you want the 'soft' end of the progressive spring to respond first, so you want it, if you will, closest to the bump. If it has to wait for the energy to transmit through the high rate end of the spring, response will be slower and ride will be harsher. If you look at any factory installation of progressive rate springs the low rate end of the spring will be "down."
There is a post somewhere about this with what the actual engineer said. In the end, its really not a big deal if they are installed upside down. The difference is pretty insignificant and odds are you wont be able to tell the difference. And yeah, your right, the tightly wound coils should be at the top.
