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11-18-2003, 08:39 PM
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#3
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cutting coils
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Naturally Aspirated
Join Date: Oct 2003
Location: Volga SD
My Ride: 84 Chrysler Laser XE
Engine: 2.2 Turbo II
Induct: Turbo
1/4: 0.000
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just a word of advice, if you do cut them coils, lock the bottom end of em down with a spring clamp, I learned the hard way in my laser, hitting a bump at 70 in town, having a coil pop of the strut and almost hitting a parked elcamino, really opened my eyes, aparently when you cut the flat part off it really changes how easily the coil can jump off the perch. It was a pretty exciting experince, at least nothing was damaged(very lucky).
The clamps I used came from the local parts store, one pair is all you will need. They havent came off since, but Im still wishing I had a real set of lowering coils.
Ben
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11-19-2003, 01:17 AM
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#7
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Naturally Aspirated
Join Date: Jan 2003
Location: Boca Raton, Florida
My Ride: 85 shelby charger
Engine: 2.2 liter I-4
Induct: Turbo
1/4: 0.000
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 Quote:
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Originally posted by 4U2 LUZ2
You can allways use a torch to heat up the coil and than compress it to your specs.
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Danger Will Robinson!!! Do Not heat up the springs, getting them hot with a torch with temper the springs and completely alter the spring rate of the metal. If you cut the springs you are at least keeping the same metal properties, but once you heat the springs up you totally change them and have no idea what they will be when done. Ever have a lowered car behind you at night and the headlights are just bouncing all over the place? That would most likely be the result of an "Oxy-Acetelyne lowering kit"
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11-20-2003, 11:45 PM
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#9
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Naturally Aspirated
Join Date: Jan 2003
Location: Calgary CAN
My Ride: 88 Lancer Shelby
Engine: 4cyl. 2.5L
Induct: Turbo
1/4: 0.000
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Shelby Z springs will lower it and make it stiffer too!!
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11-21-2003, 08:07 PM
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#11
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Naturally Aspirated
Join Date: Jan 2003
Location: Enfield, Connecticut
Induct: Turbo
1/4: 0.000
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I don't believe in cutting springs but there are somethings to think about before you start cutting.
Measure each side before cutting the springs. So park on a level surface. Measure from the ground to the fenderwell.
Before you start cutting you need to knew a few things about OEM springs on cars. Chrysler usually lists several different spring part numbers for the front on each side. This is because of different options like transmission and a/c. This is mutlipled by different levels of suspensions offered per model. Even MP autocross front springs are specific for left or right.
This brings up a common practice on cars with coilover suspension. Its called corner weighting the car. There are two steps on in this process. One is to using slightly different spring rates to adjust weight disturbation. The other is to adjust ride height for driver and fuel. Since springs rates aren't adjustable, it only leaves ride height to play with.
Normally you can turn the locking collar to adjust ride height on each side to make up for driver/passenger weights. In the rear fuel level is an issue, as is spare tire and other crap you carry back there. So now measuring comes in to big play. Cutting x amount off one side maynot produce the exact results side to side.
Now that you are ready to start cutting. Try removing small amounts of a coil first. I'd personally cut 1/4in off at a time per side to start with. As you get closer to your desired height then start taking smaller cuts out. I'd also cut in loops around the car instead of focusing on just the front or back. Cuts on one spring will throw off measurements until you loop around the car. Hence taking measurements all the way around before cutting.
I personally wouldn't lower the car where you can't fit two fingers between the tire and fenderwell lip. This is important if you plan to run a big tire or/and sticky tire. MP springs lowers a shadow to ruffly to two fingers. With KYBs installed durning autocrosses I would roll over onto the tire so badly I thought I was fuel starving in hard turns. Rolling the fenderwell lips wouldn't have helped either with the 225/50 tires I run. I have autocross video of this somewhere. So if you are running OEM or KYB dampers, it could become a problem.
It will take ime to do this right, but its worth it.
Last edited by daytonairoc; 11-21-2003 at 08:11 PM.
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