Anyone know what these spring rates are?
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I just got my suspension from GC and I think they messed up on the spring rates. The fronts were shown on the box as "8-380" and on the spring itself it showed GC200.64.76. The rears were shown on the box as "8-250" and on the spring itself it showed GC200.64.44. I tried to find spring rate calculators but I don't know what these numbers represent so I don't know how to calculate them.
Any help would be appreciated. I have many other problems with Ground Control which is why I'm asking you all instead of calling them and yelling
I will call them and get this all sorted out but I'm too pissed to talk to them right now.
Any help would be appreciated. I have many other problems with Ground Control which is why I'm asking you all instead of calling them and yelling
I will call them and get this all sorted out but I'm too pissed to talk to them right now.
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecvoodoo »</TD></TR><TR><TD CLASS="quote">GC200.64.76 425lbs
GC200.64.44 246lbs</TD></TR></TABLE>
wow that is waaaaaaaaay off from what I requested. I thought GC was a reputable company¿ They butchered my order completely!
I know you are knowledgeable with suspension, maybe you can answer this for me cause I don't really trust GC anymore. I have a 97 Prelude SH. I requested to get 400F/450R spring rates for mostly daily driving and some weekend autoX. Do you think these spring rates I have now are sufficient for this? I thought the rear should be stiffer for better handling? What would you suggest?
Thanks for the help voodoo.
GC200.64.44 246lbs</TD></TR></TABLE>
wow that is waaaaaaaaay off from what I requested. I thought GC was a reputable company¿ They butchered my order completely!
I know you are knowledgeable with suspension, maybe you can answer this for me cause I don't really trust GC anymore. I have a 97 Prelude SH. I requested to get 400F/450R spring rates for mostly daily driving and some weekend autoX. Do you think these spring rates I have now are sufficient for this? I thought the rear should be stiffer for better handling? What would you suggest?
Thanks for the help voodoo.
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecvoodoo »</TD></TR><TR><TD CLASS="quote">I would like to see that 246lb spring at about 324, which is their GC200.64.58</TD></TR></TABLE>
Okay, thanks for your help. I'm going to call GC soon and try and make a deal with them. I've had nothing but a bad experience with them so far which I hope is rare. I've basically paid for parts that are not correct (spring rates), parts that were not added in my order (Top hats that were apparently added to the invoice but not shipped), and a used collar (you can see teeth marks on them).
Not happy
So higher spring rates in the front wont cause too much understeer? Is the higher spring rates in the front be due to the front being heavier thus causing the suspension to even itself out?
Okay, thanks for your help. I'm going to call GC soon and try and make a deal with them. I've had nothing but a bad experience with them so far which I hope is rare. I've basically paid for parts that are not correct (spring rates), parts that were not added in my order (Top hats that were apparently added to the invoice but not shipped), and a used collar (you can see teeth marks on them).
Not happy

So higher spring rates in the front wont cause too much understeer? Is the higher spring rates in the front be due to the front being heavier thus causing the suspension to even itself out?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CAN97SH »</TD></TR><TR><TD CLASS="quote">
So higher spring rates in the front wont cause too much understeer? Is the higher spring rates in the front be due to the front being heavier thus causing the suspension to even itself out? </TD></TR></TABLE>
the springs are the same length, so you can actually try them either way. Higher rates are typically found in the front
So higher spring rates in the front wont cause too much understeer? Is the higher spring rates in the front be due to the front being heavier thus causing the suspension to even itself out? </TD></TR></TABLE>
the springs are the same length, so you can actually try them either way. Higher rates are typically found in the front
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecvoodoo »</TD></TR><TR><TD CLASS="quote">
the springs are the same length, so you can actually try them either way. Higher rates are typically found in the front
</TD></TR></TABLE>
okay well I'll keep that in mind when I re-order. I just got off the phone with GC and they seem to be understandable with my concerns/complaints so we'll see what happens. I think I will go a bit softer and follow your suggestions with 425F/325R spring rates. That should be a bit softer on my back anyways
I'll keep you updated if your interested. Thanks again for your help.
the springs are the same length, so you can actually try them either way. Higher rates are typically found in the front
</TD></TR></TABLE>okay well I'll keep that in mind when I re-order. I just got off the phone with GC and they seem to be understandable with my concerns/complaints so we'll see what happens. I think I will go a bit softer and follow your suggestions with 425F/325R spring rates. That should be a bit softer on my back anyways

I'll keep you updated if your interested. Thanks again for your help.
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CAN97SH »</TD></TR><TR><TD CLASS="quote">I just got my suspension from GC and I think they messed up on the spring rates. The fronts were shown on the box as "8-380" and on the spring itself it showed GC200.64.76. ..</TD></TR></TABLE>
are you sure it's 200.64.76 and not 200.64.67? .67 = 380lbs
I have been disgusted with Ground Control's customer support for years. call them up now and they won't even sell you replacement parts, or parts to adapt a coilover sleeve to another application, etc.
..still, I just ordered a custom-rate kit from them because nobody else makes one that fits the Koni shock like they do, for that price. (Koni sells coilover sleeve parts, but I found the prices more than GC).
are you sure it's 200.64.76 and not 200.64.67? .67 = 380lbs
I have been disgusted with Ground Control's customer support for years. call them up now and they won't even sell you replacement parts, or parts to adapt a coilover sleeve to another application, etc.
..still, I just ordered a custom-rate kit from them because nobody else makes one that fits the Koni shock like they do, for that price. (Koni sells coilover sleeve parts, but I found the prices more than GC).
I believe they are aware of the poor customer support over the phone, and no longer have the problem associate answering them. Hopefully it will improve... 
To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...

To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tronic »</TD></TR><TR><TD CLASS="quote">
are you sure it's 200.64.76 and not 200.64.67? .67 = 380lbs</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">I believe they are aware of the poor customer support over the phone, and no longer have the problem associate answering them. Hopefully it will improve...
To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...
</TD></TR></TABLE>
omg I'm such an idiot. You guys are right. The rate IS .67! So that means I have 380-246 spring rates. Do you all think this might be good enough meaning not a shitty ride with a 97 Prelude? Still not what I ordered but it might be good enough. I think 400/450 might have been a bit too stiff for daily driving. This is my first suspension kit which means I have never experienced a stiff ride before.
What I might do is tell GC to let me keep the rates I have now and just ship me the top hats so I can install. Thanks for bringing this up. I cant believe I mixed those numbers around lol. I think I might be a little dyslexic
Modified by CAN97SH at 8:50 AM 4/5/2007
are you sure it's 200.64.76 and not 200.64.67? .67 = 380lbs</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">I believe they are aware of the poor customer support over the phone, and no longer have the problem associate answering them. Hopefully it will improve...

To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...
</TD></TR></TABLE>omg I'm such an idiot. You guys are right. The rate IS .67! So that means I have 380-246 spring rates. Do you all think this might be good enough meaning not a shitty ride with a 97 Prelude? Still not what I ordered but it might be good enough. I think 400/450 might have been a bit too stiff for daily driving. This is my first suspension kit which means I have never experienced a stiff ride before.
What I might do is tell GC to let me keep the rates I have now and just ship me the top hats so I can install. Thanks for bringing this up. I cant believe I mixed those numbers around lol. I think I might be a little dyslexic

Modified by CAN97SH at 8:50 AM 4/5/2007
Ooops, I'm dumb too for thinking you would have 380/425 for whatever reason. LOL!
The 3xx/2xx rates tell me you ended up with "off the shelf" spring rates. You might want to tell them just to make them aware that you didn't even get a custom package you ordered at all. Hopefully they take care of you...
As for stiffness, I have slightly stiffer rates on my street civic (400f/250r), that weights hundreds of pounds less (makes springs seem even stiffer). My car has a great ride quality, and I could drive my 9 month pregnant wife around with almost no complaints. It would probably be best to keep the 380 springs for the rear, and send your 246 springs back for some 400+ replacements...
The 3xx/2xx rates tell me you ended up with "off the shelf" spring rates. You might want to tell them just to make them aware that you didn't even get a custom package you ordered at all. Hopefully they take care of you...
As for stiffness, I have slightly stiffer rates on my street civic (400f/250r), that weights hundreds of pounds less (makes springs seem even stiffer). My car has a great ride quality, and I could drive my 9 month pregnant wife around with almost no complaints. It would probably be best to keep the 380 springs for the rear, and send your 246 springs back for some 400+ replacements...
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So you think 425 would be good for the front and 380 for the rear? I'm still a little confused to why FWD cars have stiffer rates in the front. Is it because the front of the car is heavier so it needs more support? Will this cause understeer more than stock at all? I will be getting some sway bars eventually but it's something I don't need...more of a want 
I did tell them that they gave me OTS rates and I requested custom. They also forgot to send me the top hats
I have someone working with a manager and they will be calling me back today (that's what they said yesterday) to let me know what they can do.

I did tell them that they gave me OTS rates and I requested custom. They also forgot to send me the top hats
I have someone working with a manager and they will be calling me back today (that's what they said yesterday) to let me know what they can do.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CAN97SH »</TD></TR><TR><TD CLASS="quote">I'm still a little confused to why FWD cars have stiffer rates in the front. Is it because the front of the car is heavier so it needs more support? </TD></TR></TABLE>
Yes it is. Even with a harder front spring, the rear end can still be stiffer because of it's lighter weight. How much under/over-steer you get will depend on quite a few things including driving style. You won't be able to tune the behavior of the car until you get out there & start racing it. This is why a lot of guys say to just get out there & start driving the car (at events) before you start buying parts...
The cool thing is that if you feel your getting too much under-steer, you can simply swap your springs front-&-rear and that will definitely increase it's tendency to over-steer. I would certainly start with the stiffer springs up front though...
Yes it is. Even with a harder front spring, the rear end can still be stiffer because of it's lighter weight. How much under/over-steer you get will depend on quite a few things including driving style. You won't be able to tune the behavior of the car until you get out there & start racing it. This is why a lot of guys say to just get out there & start driving the car (at events) before you start buying parts...

The cool thing is that if you feel your getting too much under-steer, you can simply swap your springs front-&-rear and that will definitely increase it's tendency to over-steer. I would certainly start with the stiffer springs up front though...
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">
Yes it is. Even with a harder front spring, the rear end can still be stiffer because of it's lighter weight. How much under/over-steer you get will depend on quite a few things including driving style. You won't be able to tune the behavior of the car until you get out there & start racing it. This is why a lot of guys say to just get out there & start driving the car (at events) before you start buying parts...
The cool thing is that if you feel your getting too much under-steer, you can simply swap your springs front-&-rear and that will definitely increase it's tendency to over-steer. I would certainly start with the stiffer springs up front though...</TD></TR></TABLE>
eheh, well the reason I ordered this suspension is because my stock is pretty much toast. The shocks make so much noise it sounds like my wheels are going to fall off or something. Sooo, I decided rather than replacing with stock suspension, I might as well do it right and get something a bit better
Otherwise yeah, I would have gone to autox this year with stock setup but I doubt they would have passed me in the tech inspection. lol, I don't even think I have the stock isolators anymore, I think they just rotted right off the car. It's LOUD! 
Thanks a lot for your help. I can't wait to get this all sorted out and get everything installed
Yes it is. Even with a harder front spring, the rear end can still be stiffer because of it's lighter weight. How much under/over-steer you get will depend on quite a few things including driving style. You won't be able to tune the behavior of the car until you get out there & start racing it. This is why a lot of guys say to just get out there & start driving the car (at events) before you start buying parts...

The cool thing is that if you feel your getting too much under-steer, you can simply swap your springs front-&-rear and that will definitely increase it's tendency to over-steer. I would certainly start with the stiffer springs up front though...</TD></TR></TABLE>
eheh, well the reason I ordered this suspension is because my stock is pretty much toast. The shocks make so much noise it sounds like my wheels are going to fall off or something. Sooo, I decided rather than replacing with stock suspension, I might as well do it right and get something a bit better
Otherwise yeah, I would have gone to autox this year with stock setup but I doubt they would have passed me in the tech inspection. lol, I don't even think I have the stock isolators anymore, I think they just rotted right off the car. It's LOUD! 
Thanks a lot for your help. I can't wait to get this all sorted out and get everything installed
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">Don't forget to update this thread if/when this gets taken care of...
Good luck...
</TD></TR></TABLE>
Oh I will. I might even do a DIY install
Good luck...
</TD></TR></TABLE>Oh I will. I might even do a DIY install
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! »</TD></TR><TR><TD CLASS="quote">I believe they are aware of the poor customer support over the phone, and no longer have the problem associate answering them. Hopefully it will improve... 
To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...
</TD></TR></TABLE>
i've had nothing but good customer service from them, just 2 weeks ago i sent back a broken top hat, and they sent me one back right away, they even shipped it the same day they received my broken one.

To the OP: I would double check those spring numbers again just in case. 380/425 would be pretty close to your specified order (metric rates are never exact). It isn't unheard of for people receiving the wrong springs in their kit. They are always taken care of though, so you shouldn't have too much to worry about...
Good luck...
</TD></TR></TABLE>i've had nothing but good customer service from them, just 2 weeks ago i sent back a broken top hat, and they sent me one back right away, they even shipped it the same day they received my broken one.
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by super_nguyen »</TD></TR><TR><TD CLASS="quote">
i've had nothing but good customer service from them, just 2 weeks ago i sent back a broken top hat, and they sent me one back right away, they even shipped it the same day they received my broken one.</TD></TR></TABLE>
Hey fellow winterpegger!
Were you responsible for paying for the shipping when you sent your tophat back? Just curious. I believe you have to pay 20% is that correct?
i've had nothing but good customer service from them, just 2 weeks ago i sent back a broken top hat, and they sent me one back right away, they even shipped it the same day they received my broken one.</TD></TR></TABLE>
Hey fellow winterpegger!
Were you responsible for paying for the shipping when you sent your tophat back? Just curious. I believe you have to pay 20% is that correct?
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Okay, I have a small update. I called GC today and it seems they will be sending me a new collar and allowing me to keep the used one. I'm keeping the 380 spring rates and sending the softer ones back when I know for sure what is going on. They are also sending me the 4 top hats with the rest of the hardware. The guy I'm working with still needs to speak with the owner to approve of all of this.
So it seems that they are trying to help me out in a positive way so I hope it all turns out good in the end.
So it seems that they are trying to help me out in a positive way so I hope it all turns out good in the end.
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*Sigh*
Okay, so I called GC again today to find out that they don't even make the extended top hats for the 97+ Prelude
I don't know why no one could tell me this a month and a half ago. Either way, I don't get any top hats but they are sending the new collar and two springs with 425 spring rates.
So I will have 425 rates in the front and 380 in the rear. I hope this is good enough for daily driving and some weekend autox. What do you all think?
Okay, so I called GC again today to find out that they don't even make the extended top hats for the 97+ Prelude
I don't know why no one could tell me this a month and a half ago. Either way, I don't get any top hats but they are sending the new collar and two springs with 425 spring rates.So I will have 425 rates in the front and 380 in the rear. I hope this is good enough for daily driving and some weekend autox. What do you all think?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CAN97SH »</TD></TR><TR><TD CLASS="quote">*Sigh*
Okay, so I called GC again today to find out that they don't even make the extended top hats for the 97+ Prelude
I don't know why no one could tell me this a month and a half ago. Either way, I don't get any top hats but they are sending the new collar and two springs with 425 spring rates.
So I will have 425 rates in the front and 380 in the rear. I hope this is good enough for daily driving and some weekend autox. What do you all think?</TD></TR></TABLE>
I think it will work fine.
Also, GC just got rid of a couple guys that were responsible for a lot of the screw up lately.
Okay, so I called GC again today to find out that they don't even make the extended top hats for the 97+ Prelude
I don't know why no one could tell me this a month and a half ago. Either way, I don't get any top hats but they are sending the new collar and two springs with 425 spring rates.So I will have 425 rates in the front and 380 in the rear. I hope this is good enough for daily driving and some weekend autox. What do you all think?</TD></TR></TABLE>
I think it will work fine.
Also, GC just got rid of a couple guys that were responsible for a lot of the screw up lately.
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtecvoodoo »</TD></TR><TR><TD CLASS="quote">
I think it will work fine.
Also, GC just got rid of a couple guys that were responsible for a lot of the screw up lately.</TD></TR></TABLE>
lol, yeah and I was one of the victims
Ground Control has helped me out a lot with trying to get my order right so I give them props for that.
Sucks that they don't make top hats for the Prelude though. I wanted to get that extra bling
They also sent me some instructions but I'm not too sure about them and I don't want to call them on my work number anymore so I was wondering if one of you can help me out here. Here is a picture of one of the rear assemblies:

Now where is says "Save/discard, cut at 2 1/4"......what is that part? Is that the GC bumpstop? It also tells me to cut the stock bumpstops in half. Do I need to keep the stock bumpstops on with the GC bumpstops? I already have cut GC bumpstops that came with the kit. Also what are the O-Rings and split sleeve? I'm wondering if they gave me some old instructions as I don't have any O-Rings or Split Sleeves. I do have the Perches on all 4 shocks with sleeves and collars but none that I saw were "split". The Perches are set in the middle so I hope that is fine. I don't plan on dumping the car, 2 inches at most so I assume the perches in the middle are fine where they are? Sorry for all the Q's but it's slow at work
I think it will work fine.
Also, GC just got rid of a couple guys that were responsible for a lot of the screw up lately.</TD></TR></TABLE>
lol, yeah and I was one of the victims
Ground Control has helped me out a lot with trying to get my order right so I give them props for that.Sucks that they don't make top hats for the Prelude though. I wanted to get that extra bling

They also sent me some instructions but I'm not too sure about them and I don't want to call them on my work number anymore so I was wondering if one of you can help me out here. Here is a picture of one of the rear assemblies:

Now where is says "Save/discard, cut at 2 1/4"......what is that part? Is that the GC bumpstop? It also tells me to cut the stock bumpstops in half. Do I need to keep the stock bumpstops on with the GC bumpstops? I already have cut GC bumpstops that came with the kit. Also what are the O-Rings and split sleeve? I'm wondering if they gave me some old instructions as I don't have any O-Rings or Split Sleeves. I do have the Perches on all 4 shocks with sleeves and collars but none that I saw were "split". The Perches are set in the middle so I hope that is fine. I don't plan on dumping the car, 2 inches at most so I assume the perches in the middle are fine where they are? Sorry for all the Q's but it's slow at work
theyre telling you to trim the metal dust covers.
DONT LISTEN TO IT.
just dont install any sort of dust cover. it will get in the way of the ground control sleeves. i dont even know why they even attempt to make some use out of the stock ones.
you really dont need to worry about it.
DONT LISTEN TO IT.
just dont install any sort of dust cover. it will get in the way of the ground control sleeves. i dont even know why they even attempt to make some use out of the stock ones.
you really dont need to worry about it.
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ahhhh, so they are the dust boots. Not having the dust boots on in winter wont be an issue? What about the split sleeve and O-rings? Do you know anything about those?
Thanks for the help guys
Thanks for the help guys




