more lift to the superlift

[Matt]

I've tried this. I tried installing OME med-duty springs after I loaded up the front end with a winch and bumper (back when Ross was making them). We couldn't even get the passenger side strut back in the Jeep.

Bumping this thread back up since I'm planning on doing this in the foreseeable future. Though i'm concerned.... you had all those issues with med-duty springs?

I want to clarify something here:
OME rates the springs as light duty and medium duty for XK's, and the SAME springs as medium and heavy duty for WK's. We (onlline XK/WK community) generally refer to the OME springs in terms of the WK designations of medium and heavy duty.

Thus my question: Did you have issues with the XK medium duty springs, which are actually the WK heavy duty springs?

[07JeepXK]

I don't think it matters either way. Your still going to have to chop a whole coil off. Remember he has the added weight of a steel bumper and winch that you don't.

[Matt]

I don't think it matters either way. Your still going to have to chop a whole could off. Remember he has the added weight of a steel bumper and winch that you don't.

It definitely matters if he had the WK MD springs since they're weaker than the XK MD springs.

Remember:
WK MD = XK LD
WK HD = XK MD

So when he said MD springs, if he meant XK MD springs then that's what I have and ill consider cutting a coil off. However if he meant WK MD springs, then those are weaker than what I have and ill therefore want to sell my springs and go with a different method of additional lift.

[Matt]

And thinking about it some more.... if he did have the XK MD springs (WK HD), which is what I currently have, I may consider swapping them out for the XK LD (WK MD) springs to mitigate some of the issues phunky had which may allow me to cut less than a full coil off.

[07JeepXK]

And thinking about it some more.... if he did have the XK MD springs (WK HD), which is what I currently have, I may consider swapping them out for the XK LD (WK MD) springs to mitigate some of the issues phunky had which may allow me to cut less than a full coil off.

What issues did phunkeydude have? I really don't see an issue what so ever. Order the superlift, keep your HD coils, cut off a coil, install and be sad cause my jeep is still bigger sitting on brand new 34 inch MT/R's. Bwhahaha

[Pixelcodex]

And thinking about it some more.... if he did have the XK MD springs (WK HD), which is what I currently have, I may consider swapping them out for the XK LD (WK MD) springs to mitigate some of the issues phunky had which may allow me to cut less than a full coil off.

Are you talking Old Man Emu or stock springs? I was under the impression that OME springs were rated the same for both the XK and WK...

[Matt]

You're missing the part about the difference in coils, if my coils are stiffer I'll need to cut more off than phunky did.
His issue was the ride was stiffer from the cut coil .... hence why kmax had custom coils made. so, already starting with a higher spring rate + having to cut more coil off = even stiffer suspension. That's the issue. It all boils down to which OME spring they tried using..... hence my question

[06JeepXKHEMI]

What issues did phunkeydude have? I really don't see an issue what so ever. Order the superlift, keep your HD coils, cut off a coil, install and be sad cause my jeep is still bigger sitting on brand new 34 inch MT/R's. Bwhahaha

Just let me get the 33's Ill chop up the XK for them, I do not care!!!

[Matt]

EDIT: Brain fart.... these part numbers are the REAR Springs

So just because i've been thinking about this and had a theory, I had to put some numbers to it and found something interesting.

OME992 = WK MD = XK LD = 13.6" free height, 7.2 coils, 240 lbf/in, 17mm wire
OME993 = WK HD = XK MD = 13.6" free height, 6.6 coils, 280 lbf/in, 18mm wire

OME992 with 1 coil removed:
11.7" free height, 6.2 coils, 280 lbf/in <---Note that this is like running the OME993 spring rate and 2" less pre-load in the assembly

OME993 with 1 coil removed:
11.5" free height, 5.6 coils, 330 lbf/in

Based on this, I think I'm going to try an OME992 with 1/2 coil removed:
12.7" free height, 6.7 coils, 260 lbf/in <---- This will give a spring rate in between the OME HD/MD springs, and an inch less preload in the assembly. So it should ride good, and if needed I can always cut another half coil off.

Note that free heights are estimations due to the fact that the top side of the coil closed/ground. But their relative differences to each other should be maintained for comparison purposes.

But still need to know whether kmax/phunk used the OME992 or OME993 spring. I have a feeling, based on the "stiff ride" comment that they cut down an OME993 spring and ended up with a 330 spring rate.

[07JeepXK]

My question is, how do you figure out the spring rate of a coil that has been cut down???