Cutting Moog Springs- Info inside
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Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Cutting Moog Springs- Info inside
I will be cutting my Front Moog 5662 springs tomorrow. I want about a 1-2" drop. As of now I am just going to cut half a coil, then reinstall over and over untill I get my desired ride height.
EDIT: I cut the springs with an angle grinder and cut off disc. I cut .75 of a coil and resulted in about a 1.5" drop. I would recommend not to cut more than .75 of a coil off at a time as you might cut too much. Also remember to get an alignment after the drop.
I noticed a small improvement in handling. Nothing major. My ride quality wasn't effected at all.
Before, 28" Fender Height
After, 26 5/8" (photo is flipped to show same orientation as above photo.)
I know I looked for a while and couldn't find much info on the topic. So now this thread will be pulled up in searches.
Any one else who have cut their moog springs with results, feel free to post.
EDIT: I cut the springs with an angle grinder and cut off disc. I cut .75 of a coil and resulted in about a 1.5" drop. I would recommend not to cut more than .75 of a coil off at a time as you might cut too much. Also remember to get an alignment after the drop.
I noticed a small improvement in handling. Nothing major. My ride quality wasn't effected at all.
Before, 28" Fender Height
After, 26 5/8" (photo is flipped to show same orientation as above photo.)
I know I looked for a while and couldn't find much info on the topic. So now this thread will be pulled up in searches.
Any one else who have cut their moog springs with results, feel free to post.
Last edited by Buggy Disaster; 08-22-2013 at 08:11 PM.
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KCZ (02-16-2021)
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Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: Cutting Moog 5662, how much drop?
JamesC I have been running the springs for a couple of months at stock height. When I originally installed the springs it lowered my car about a 1/4" as well.
I went ahead and cut .75 of a coil and got about a 1.75" drop. The front looks great now. Next is the rear.
I went ahead and cut .75 of a coil and got about a 1.75" drop. The front looks great now. Next is the rear.
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Car: 1971 Camaro
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Re: Cutting Moog Springs- Info inside
Did you changed your bumpstops?
I cut a half coil off mine and it put the bumpstop very close, I got some trim to fit traction bar snubbers to replace the stockers.
I cut a half coil off mine and it put the bumpstop very close, I got some trim to fit traction bar snubbers to replace the stockers.
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Re: Cutting Moog Springs- Info inside
Yes. More info in the following link:
https://www.thirdgen.org/forums/susp...s-created.html
JamesC
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Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: Cutting Moog Springs- Info inside
The bump stops were not an issue for me. I just drove the car on about a 150 mile round trip on the interstate, and it drove great. It didn't bottom out once, even over bridges and dips
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Re: Cutting Moog Springs- Info inside
I wouldnt suggest cutting more than a HALF coil TOTAL off EVER on these springs. The spring rates cannot be balanced front to rear when you cut that much off the front springs. The spring rates become insanely high putting a much higher load on your struts and shocks. Hope you have some Koni's.
If you need more than a 1 inch drop, you get drop springs or weight jacks. In my opinion, it's not safe to ride around with unbalanced front-rear spring rates. It will cause oversteer and the rears will hit their grip limit in cornering long before the fronts, assuming the sway bars are set up for a factory-balanced setup.
If you need more than a 1 inch drop, you get drop springs or weight jacks. In my opinion, it's not safe to ride around with unbalanced front-rear spring rates. It will cause oversteer and the rears will hit their grip limit in cornering long before the fronts, assuming the sway bars are set up for a factory-balanced setup.
Last edited by InfernalVortex; 08-25-2013 at 09:31 PM.
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Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: Cutting Moog Springs- Info inside
I see what you mean. I'm not too worried though, as I have read some others cut .5-1 coil off moog springs with good long term results. Plus I am not going to run my car hard for a while. I had plans to get weight jacks next year at the start of autoX season.
I don't think the spring rate is nearly high enough to cause unsafe street scenarios. I can't really tell much of a difference in spring rate since I have cut them. The car rides very smooth. I did "test" the handling by taking some nice corners at different rates of speed, the rear end seems pretty planted. Actually it seemed a little more planted with the lower CG.
I don't think the spring rate is nearly high enough to cause unsafe street scenarios. I can't really tell much of a difference in spring rate since I have cut them. The car rides very smooth. I did "test" the handling by taking some nice corners at different rates of speed, the rear end seems pretty planted. Actually it seemed a little more planted with the lower CG.
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Re: Cutting Moog Springs- Info inside
I see what you mean. I'm not too worried though, as I have read some others cut .5-1 coil off moog springs with good long term results. Plus I am not going to run my car hard for a while. I had plans to get weight jacks next year at the start of autoX season.
I don't think the spring rate is nearly high enough to cause unsafe street scenarios. I can't really tell much of a difference in spring rate since I have cut them. The car rides very smooth. I did "test" the handling by taking some nice corners at different rates of speed, the rear end seems pretty planted. Actually it seemed a little more planted with the lower CG.
I don't think the spring rate is nearly high enough to cause unsafe street scenarios. I can't really tell much of a difference in spring rate since I have cut them. The car rides very smooth. I did "test" the handling by taking some nice corners at different rates of speed, the rear end seems pretty planted. Actually it seemed a little more planted with the lower CG.
Your "tests" amount to "It feels better therefore it is better." Until you find the grip limit you dont know how it's going to act when you get there. That's always the concern. "feeling planted" and having predictable, managable handling behavior at and beyond the limit of grip are completely different things.
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Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: Cutting Moog Springs- Info inside
Good info there.
That's why I put test as "test". I know it did not give me real accurate results. But I am fine with that, as my car never sees beyond the grip limit. Especialy since it is a 305/A4. I can only see me loosing traction that leads to oversteer in emergency street situations.
Now next year, when I get my GC Jacks along with Konis or KYB AGX struts/shocks I will then dial in suspension to the ride height, ride quality, and performance I desire. Untill then it's easy driving from point A to B.
That's why I put test as "test". I know it did not give me real accurate results. But I am fine with that, as my car never sees beyond the grip limit. Especialy since it is a 305/A4. I can only see me loosing traction that leads to oversteer in emergency street situations.
Now next year, when I get my GC Jacks along with Konis or KYB AGX struts/shocks I will then dial in suspension to the ride height, ride quality, and performance I desire. Untill then it's easy driving from point A to B.
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Re: Cutting Moog Springs- Info inside
Good info there.
That's why I put test as "test". I know it did not give me real accurate results. But I am fine with that, as my car never sees beyond the grip limit. Especialy since it is a 305/A4. I can only see me loosing traction that leads to oversteer in emergency street situations.
Now next year, when I get my GC Jacks along with Konis or KYB AGX struts/shocks I will then dial in suspension to the ride height, ride quality, and performance I desire. Untill then it's easy driving from point A to B.
That's why I put test as "test". I know it did not give me real accurate results. But I am fine with that, as my car never sees beyond the grip limit. Especialy since it is a 305/A4. I can only see me loosing traction that leads to oversteer in emergency street situations.
Now next year, when I get my GC Jacks along with Konis or KYB AGX struts/shocks I will then dial in suspension to the ride height, ride quality, and performance I desire. Untill then it's easy driving from point A to B.
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