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Need help with front spring rates

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Old 03-22-2010, 08:08 PM
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Default Need help with front spring rates

Been pulling my hair out over the fact that i can get the front to just hop up about 3 inches off the ground but then it just drops. Got looking at it tonight and seen that for some stupid reason I have a set of 300lb springs on the front, thought that i needed more like a 175-200lb spring with a front end weight of 1700lbs. Need some advice, the car in question is the one below.
Old 03-22-2010, 08:22 PM
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1st what shocks you running front and rear?
Old 03-22-2010, 08:22 PM
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My front end is just a shade lighter than yours and Madman set me up with 275lbs hypercoils along with my Strange struts for the front if I remember correctly.
Old 03-22-2010, 08:32 PM
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Qa1 single front
Qa1 DA rear
Old 03-22-2010, 08:48 PM
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I would highly recommend calling Madman or one of his guys at their shop tomorrow and have someone there with some real experience guide you in what you need for what you want out of your car. You don't need somebody telling you what their cousin's friend's brother ran on his car 5 years ago that set the world on fire IMO...
Old 03-22-2010, 10:07 PM
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Originally Posted by 358chevycamaro
You don't need somebody telling you what their cousin's friend's brother ran on his car 5 years ago that set the world on fire IMO...


And I'd also recommend a call to Madman. He helped me out.
Old 03-22-2010, 11:48 PM
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Originally Posted by 358chevycamaro
My front end is just a shade lighter than yours and Madman set me up with 275lbs hypercoils along with my Strange struts for the front if I remember correctly.
What motor are you running? Alum or CI? I have a set of Strange coilovers w/ 275lbs Hypercoils that I am going to install this weekend. I have a 6.0l that I hope to put in soon so I was curious if the extra weight will be to heavy for the 275lbs springs.
Old 03-23-2010, 12:40 AM
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I have 275s up front. fiberglass hood, !ac !ps !bumper support.
Old 03-23-2010, 08:08 AM
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Hey,

Give me a call at the shop. I can get you the correct spring rate for your car, but I need to ask you a few questions about your set-up, first. Our number is 225-673-3533.

Thanks
Steve
Madman & Co. Racing.
Old 03-23-2010, 08:25 AM
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Iron block the 300 lb is probably about right, it's most likly a shock extension/compression issue moreso then the spring.
Old 03-23-2010, 09:44 AM
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Originally Posted by JL ws-6
Iron block the 300 lb is probably about right, it's most likly a shock extension/compression issue moreso then the spring.
So a 275lb spring rate would probably be to light for an iron block?
Old 03-23-2010, 09:55 AM
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Not always, it's more a car weight thing. If the car's at about 3200 lbs or less, the 275 will be fine, you may even be able to get a 275 to work on a 3400 lb car, but it all depends where the weight is in the car when you start getting that heavy, and how violent the launch is, etc. Nothing is a set rule, I've seen 3000 lb cars run a 275 spring and a 325 spring, and both work. Not saying that's right either, but it's possible
Old 03-23-2010, 07:10 PM
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After looking checking and calling around I found that i have a dead spring. They wont compress or extend, put them on the spring checker at work and they are junk. Would not recommend any QA1 stuff, going to buy some hypercoil springs tomorrow probably going to go with a 275. Will defiantly know this weekend if it is the fix or not, from what everyone is telling me that i am going in the wright direction.




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