H&R Spring Review

WheelNut

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Time for an update on my H&R springs. My ride height is now at 20.25" in the front and 20.5" in the rear. So, there is certainly some settling that has taken place. The fact that the spring rates are stiffer than factory still bothers me and it is noticeable over any sort of rough terrain. On large compressions you can feel that the spring rate is bit higher than the damper rate and there is a very slight amount of bounciness to the ride. In off-road driving the performance is great and my skid plate is rarely hit now and the overall capability of the KJ is much higher, so I'm quite pleased. It should also be noted that my KJ is totally stock with no additional weight added by bumpers or additional equipment.
 

WheelNut

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It's fine around town. The KJ didn't really ride that well to start with (solid rear axle can only do so much), so springs that feel 10% stiffer don't make a huge difference in the grand scheme of things. As far as I know the OME springs also achieve their mission of raising ride height by employing higher spring rates as well. I have never driven a KJ with OME springs though, so I can't make that comparison from experience. Our OP in this thread has stated the ride of the H&Rs is better than the OMEs though, so there is one example to back up that theory.
I would certainly prefer if these springs achieved their lift by being longer than factory with a Lbs/in rating similar to the oem springs. Changing the preload of the spring ala Bilstein 5100 would give a person the ability to raise their ride height without changing the ride feel of the vehicle.
 

Erskine

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I really appreciate this review and discussion and as a result have ordered the components for this lift. Here in Great Britain we are really having a financial squeeze put on us this winter, this route may be a compromise but there is so much else I'm having to stock up on before massive price rises in October. Even with using top quality KYB shocks all round it's running me half the price of the preferred OME/Blitstein route and 2/3 the price of the EFS/EFS route. A 20" settled ride height will be enough to get me about the landscape I need to traverse. (I'm scraping along at 18" currently).
I won't be fitting it straight away, I just needed to purchase before things get silly. I am assuming that since the springs are pretty much the same height as standard units that I will not need to get hold of extended front bump stops for the front and hockey pucks for the back?
In the words of the great philosopher Mr M. Jagger:
"You can't always get what you want
But if you try sometime you'll find
You get what you need"
 
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WheelNut

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Hi Erskine, I think us Canadians in this thread have been cursed with the same problem: OME springs cost a fortune outside of the USA.

If you aren't running oversized tires or extended length rear shocks you won't need to change anything in regards to your bump stops. I'm using 245/70R16 tires and I have not had any issues with contact betwixt the fenders and tires.
 

Erskine

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Hi Erskine, I think us Canadians in this thread have been cursed with the same problem: OME springs cost a fortune outside of the USA.

If you aren't running oversized tires or extended length rear shocks you won't need to change anything in regards to your bump stops. I'm using 245/70R16 tires and I have not had any issues with contact betwixt the fenders and tires.
The 4 springs are £240 inc UPS courier from Germany with import tax paid, which is about $363 Canadian.

Thanks for the reply.
 

lerry

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I'm intrested in this set up of h&r coils. what's up bud ?
 

Erskine

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I'm intrested in this set up of h&r coils. what's up bud ?
What do you mean 'what's up'?
Can you translate that into English please?
Two great nations divided by a common language!
 

tommudd

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It's fine around town. The KJ didn't really ride that well to start with (solid rear axle can only do so much), so springs that feel 10% stiffer don't make a huge difference in the grand scheme of things. As far as I know the OME springs also achieve their mission of raising ride height by employing higher spring rates as well. I have never driven a KJ with OME springs though, so I can't make that comparison from experience. Our OP in this thread has stated the ride of the H&Rs is better than the OMEs though, so there is one example to back up that theory.
I would certainly prefer if these springs achieved their lift by being longer than factory with a Lbs/in rating similar to the oem springs. Changing the preload of the spring ala Bilstein 5100 would give a person the ability to raise their ride height without changing the ride feel of the vehicle.
Using the 5100s with any type of stronger springs is ill advised
SITTING SOMEONE UP WITH A BAD PROBLEM

Anyone thinking or wanting to use the Bilstein 5100 adjustable front shocks , think again
If you do want to use them, not sure why but,.....
You should not install them any more than sitting at the 0 mark, that is it
Any higher and it will create a disaster , degrading the springs within a few months
It preloads the springs which is very bad much like cheap spacer lifts do
These shocks should of never been built in the first place
4600s are cheaper , are the same internally , and are built for the KJs/KKs to keep the same spring perch at stock distances
Jeepinjarhead and I have discussed this and just today I seen a discussion suggesting someone use them
Please do not , unless you want to spend the extra money , set them at 0 just to say you have them
 

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