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Suspension & Brakes Theory, alignment, spring rates....

heated or chopped

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Old 07-31-2006, 08:45 AM
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Default heated or chopped

ive heard rummors that heating up your springs to lower your car is better than chopping them down because they will bounce.. i was wondering if it wont do the same if you heat em up?.. im wondering cuz i have an old junker sitting at my house and dont want to waste alot of money on springs... that and they dont necessarily make lowering springs for it cuz its not that popular i guess
Old 07-31-2006, 09:21 AM
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Default Re: heated or chopped (vermilion)

You will benifit from neither.
Old 07-31-2006, 10:56 AM
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Default Re: heated or chopped (vermilion)

Heating springs lowers the spring rate. So afterwards, you'll be low and massively undersprung, hitting the bumpstops all the time and bottoming out. You need stiffer springs to handle decreases suspension travel.

Cutting springs raises the spring rate. This would be a good thing, except people cutting springs to save money keep the stock shocks, which can handle neither the lower ride height nor the increased rate. So you'll bounce and be nice and underdamped until you blow out the shocks.

I'd say you could experiment with cut springs and good shocks to save some cash, but by the time you buy good shocks, it isn't much more for good springs to go with them. You get what you pay for, and suspension isn't something to cheap out on.


Modified by TunerN00b at 1:11 PM 7/31/2006
Old 07-31-2006, 11:19 AM
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Default Re: heated or chopped (TunerN00b)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TunerN00b &raquo;</TD></TR><TR><TD CLASS="quote">...So you'll bounce and be nice and underdamped until you blow out the shocks.</TD></TR></TABLE>

fixed...
Old 07-31-2006, 12:17 PM
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Default Re: heated or chopped (94eg!)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94eg! &raquo;</TD></TR><TR><TD CLASS="quote">fixed... </TD></TR></TABLE>

Yes, thank you. Underdamped, is correct.

Everyone freaks out about cutting springs, without understanding what is wrong with doing it. I've driven cars with cut springs that rode perfectly fine, but these cars also had shock upgrades to handle the stiffer rates (who knew that Chevy heavy duty truck shocks would fit the full sized cars and are dirt cheap used?), and we only cut 1 coil off the springs to try and minimize the rate change.

Personally, I'd never do such a thing to my own car, as I think a set of Konis and GCs are such a great investment for the price that there's no reason not to just do it right the first time. And for those not needing the adjustability, a set of KYB AGX shocks and Eibach sportlines is a fantasticly cheap lowering for the quality of the ride.
Old 07-31-2006, 02:29 PM
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Default Re: heated or chopped (vermilion)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vermilion &raquo;</TD></TR><TR><TD CLASS="quote">that and they dont necessarily make lowering springs for it cuz its not that popular i guess</TD></TR></TABLE>


Don't be shy, tell us what it is. Slammin your metro?
Old 07-31-2006, 02:46 PM
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Default Re: heated or chopped (toshiro)

If you do cut your springs, you just have to make sure you cut them exactly the same from side to side. If you don't, the spring rates will be uneven from left to right making the vehicle unpredictable...
Old 07-31-2006, 03:46 PM
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Default Re: heated or chopped (94eg!)

its a 91 mazda 626... thnx for the advice. i just want to experiment on that car since i really dont drive it anymore cuz i have an si now.. yes i know im gonna buy aftermarket for that one and slam it to the ground nice and easy
Old 08-01-2006, 01:14 AM
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If you don't drive it anymore . . . sell it instead of ruining it...
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