What springs rates for k2rd coilover kit
#1
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What springs rates for k2rd coilover kit
OK... decided on the k2rd coilovers
now what spring rate do i want... the car will be setup for auto crossing. and commuting to work (a short
commute)
here are teh springs rates i was thinking of
400F/275R - which was the original Ground control recommendation, and also mazdamotorsport.com spring rates for their supsension package stage II
375F/225R - Paul Ko default spring rate... also cymfc3s yellow car setup, apparently this is what Paul runs on his race cars
350F/225R - a few forum members are using this.
So these are the options.
I originally decided on 400F/275R
talked to Seth and he uses 375F/225R
what do i want? i want to get the setup right or as close to right as possible.
Suggestions? how does a 400F/275R handle compared to 375F/225R?
Thanks
now what spring rate do i want... the car will be setup for auto crossing. and commuting to work (a short
commute)
here are teh springs rates i was thinking of
400F/275R - which was the original Ground control recommendation, and also mazdamotorsport.com spring rates for their supsension package stage II
375F/225R - Paul Ko default spring rate... also cymfc3s yellow car setup, apparently this is what Paul runs on his race cars
350F/225R - a few forum members are using this.
So these are the options.
I originally decided on 400F/275R
talked to Seth and he uses 375F/225R
what do i want? i want to get the setup right or as close to right as possible.
Suggestions? how does a 400F/275R handle compared to 375F/225R?
Thanks
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I run the default 400/275 on my road racing FC, but I'm going to move to 500/325 and see how that works. These ERS springs are cheap enough that experimenting isn't going to set me too far back.
The 400/275 works fine with my stock front, no rear, swaybar setup, just a hint of understeer at the moment, but easily steerable by throttle. I would think this would be a bit stiff for the street though (although that might be the Delrin bushings causing the harshness)
PaulC
The 400/275 works fine with my stock front, no rear, swaybar setup, just a hint of understeer at the moment, but easily steerable by throttle. I would think this would be a bit stiff for the street though (although that might be the Delrin bushings causing the harshness)
PaulC
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Originally posted by SHPNOUT
???Why run lower rates for larger wheels??
???Why run lower rates for larger wheels??
Make sense?
Cory
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i'm running the full K2RD set up: coil-overs, camber plates, rear pillow ball mounts, etc... LOVE IT! i'm also running the 375#/225# setup. i'm going to experiement a bit, just to see. driving style determines a lot. i tend to be pretty smooth, but also tend to like my cars set up a bit loose. also running no rear sway bar. doing the bushings soon. also, if you're track tends to be a bit rough or bumpy, too tight a setup while make the car stutter/bobble, especially in turns.
good luck,
mike
RCF MotorSports
good luck,
mike
RCF MotorSports
#12
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ah... the decisions... no! don't force me to make one.
thank u to everyone who replied.
silkworm... i want more car **** vids
especially laguna seca
thank u to everyone who replied.
silkworm... i want more car **** vids
especially laguna seca
#15
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Motion ratio is the ratio of movement between the wheel and the shock absorber, because the suspension arm acts as a lever and gives mechanical advantage. For the sake of arguement (these numbers are not exactly right) the FC front suspension is a MacPherson design, so the spring/damper is mounted nearly at the tip, so we will call it a 1.2:1 ratio, or the wheel moves 1.2 inches for every one inch on the strut/spring. On the FD, I think the damper is mounted towards the middle of the A-arm, so the motin ratio would be something like 2:1, so the extra mechanical advantage means you need a heavier spring for the same "wheel rate" which is the spring and damper value as measured at the wheel. make sense?
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Ah, that's interesting. I'm no longer as jelous of you FD guys. Anyone have some more concrete numbers?
I'm assuming Cheers! has done his homework so I'll ask; Why wouldn't the Tein 'HA' coilovers be better? KYB AGXs are kind of limited in their damping ability, it would seem to me that a performance damper would be a better choice?
I'm assuming Cheers! has done his homework so I'll ask; Why wouldn't the Tein 'HA' coilovers be better? KYB AGXs are kind of limited in their damping ability, it would seem to me that a performance damper would be a better choice?
Last edited by Snrub; 04-08-03 at 02:34 PM.
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