Eibach vs shock therapy

[Boat 405]

I have a 2018 razor XP four turbo and want to get my springs changed and I remember there was a thread where guys were talking about I believe Eibach was preferable to the shock therapy springs

 

[Ziggy]

I have a 2018 razor XP four turbo and want to get my springs changed and I remember there was a thread where guys were talking about I believe Eibach was preferable to the shock therapy springs

Kurt at DC shock service uses eibach. He had my car in/out in one day at his Havasu location.

 

[LargeOrangeFont]

Go with whatever is cheaper. Both companies have decent springs. You just missed the ST Black Friday sale though. Given that I 2nd Kurt @ DC in Havasu. He is great to work with and will dial the car in with Eibach springs.

Take the car to Kurt, get the springs and "spring" for the revalve as well. He gives a decent cash discount for the entire package.

I will be in Havasu the weekend of the Poker Run if you want a test ride in my car (same car as yours - 2019 Turbo XP 4 seater). Kurt did my shock valving, but I have Shock Therapy springs because I got them on sale locally.

 

[coolchange]

Never eibach. Had a broken spring on a street car. Almost new, wouldn’t warranty it.

 

[HB2Havasu]

Do yourself a favor and have the Shocks Re-valved while you have them off. It makes a huge difference in ride quality! I'd just go with whatever springs are less money.

 

[ChrisV]

Eibach springs and have shock therapy revalve it.

 

[NIKAL]

Eibach or Hyperco.

Reason I don’t like ST is they act like they have some secret sauce magic going on and will not label the spring rates on their springs, and will not tell you what rates they are putting on your car.

Both Eibach & Hyperco have spring kits for each UTV, and they do them in stages, depending on what you have added to your vehicle. Stage one, pretty stock. Stage two, if you added a spare tire bumpers etc…

 

[Shockwave25]

I had shock therapy on my 19XP4 and hated it. Just had Kurt do my springs on my x3 and it was a night and day difference. Kurt is awesome to work with!!

 

[HotRod82]

Eibach or Hyperco.

Reason I don’t like ST is they act like they have some secret sauce magic going on and will not label the spring rates on their springs, and will not tell you what rates they are putting on your car.

Both Eibach & Hyperco have spring kits for each UTV, and they do them in stages, depending on what you have added to your vehicle. Stage one, pretty stock. Stage two, if you added a spare tire bumpers etc…

This irritates the shit out of me too, them not telling you what spring is on your own car. I took their springs and put them my trailer tongue scale and compressed them with my little hydraulic press to get the rate....Last car I worked on The ST springs were 3X the price of Eibach springs from Kartek.

 

[PlanB]

Shock Therapy did my shocks (springs and valving) on my X3 and it was an incredible difference from factory. It's a completely different car now. My only regret was not doing IQS.

 

[paradise]

Different car but I am extremely happy with the ST springs on my Turbo S4.

 

[LargeOrangeFont]

Eibach or Hyperco.

Reason I don’t like ST is they act like they have some secret sauce magic going on and will not label the spring rates on their springs, and will not tell you what rates they are putting on your car.

Both Eibach & Hyperco have spring kits for each UTV, and they do them in stages, depending on what you have added to your vehicle. Stage one, pretty stock. Stage two, if you added a spare tire bumpers etc…

The rate diameter and free length and are just their part numbers backwards in that order.

I will say the Eibach kits are pretty good, but some of their top springs are too short. Interestingly enough their level 2 kit is just slightly different than the ST kit they gave me for my car.

Kurt @ DC said he would have given me slightly different spring rates, but not enough to make much difference. He said generally ST gives springs that are close to what he would recommend anyway.

This is a 400 lb, 3 inch ID, 10 inch free length Shock Therapy spring.

 

[CommanderLee]

Eibach on my car. 2K miles on them so far and no complaints. Car had maybe 25 miles on it when Eibach used it to test/develop the springs and sway bars. Huge difference from stock. Several buddies have swapped to Eibachs and all say the same thing about wishing they had done it sooner. My opinion is swap the springs, enjoy the car and when the shocks need a rebuild then look at a re-valve then. I check the nitrogen in the shocks at the beginning of every season and add as needed. Then check it throughout the season based on how much its driven. Car is a 19 XP4 1000.

 

[LargeOrangeFont]

Eibach on my car. 2K miles on them so far and no complaints. Car had maybe 25 miles on it when Eibach used it to test/develop the springs and sway bars. Huge difference from stock. Several buddies have swapped to Eibachs and all say the same thing about wishing they had done it sooner. My opinion is swap the springs, enjoy the car and when the shocks need a rebuild then look at a re-valve then. I check the nitrogen in the shocks at the beginning of every season and add as needed. Then check it throughout the season based on how much its driven. Car is a 19 XP4 1000.

Good call. I am about to buy the stuff to do my own nitrogen here.

On the 1K I agree with you. You can get away without the revalve. It is better with it but not by a huge margin.

My 19 Turbo was valved quite a bit stiffer than my 1k. I found that really odd, and found huge gains in performance and ride quality doing the valving on it.

The Eibach sway bars are great on the car. I was really impressed with that improvement for the cost as well.

 

[CommanderLee]

Good call. I am about to buy the stuff to do my own nitrogen here.

On the 1K I agree with you. You can get away without the revalve. It is better with it but not by a huge margin.

My 19 Turbo was valved quite a bit stiffer than my 1k. I found that really odd, and found huge gains in performance and ride quality doing the valving on it.

The Eibach sway bars are great on the car. I was really impressed with that improvement for the cost as well.

Interesting, you would think they would be pretty close to each other. I would assume they weigh about the same? Guess the added power and speed would call for a stiffer set up?

 

[LargeOrangeFont]

Interesting, you would think they would be pretty close to each other. I would assume they weigh about the same? Guess the added power and speed would call for a stiffer set up?

That is what I would have thought too. I just threw my springs on intending to put a season on the car as is, and it was really stiff. I started asking around and that was the consensus - that the turbo cars were stiffer for some unknown reason. So I pulled them off to get revalved and converted them to hi/low speed adjustable.

 

[THE WIDGE]

I have a 2018 razor XP four turbo and want to get my springs changed and I remember there was a thread where guys were talking about I believe Eibach was preferable to the shock therapy springs

I just posted same question a month ago. Kurt from DC shocks did springs and revalve a few weeks ago. Came out great. My scs is in havasu, made since to schedule appointment w him and go for a ride later that day than pulling shocks off or driving to ST

 

[Jimmyv]

No experience with shock therapy, but literally 10’s thousands of miles on Eibachs between sxs and other off-road trucks and Kurt @DC has done all of them.

 

[Boat 405]

Go with whatever is cheaper. Both companies have decent springs. You just missed the ST Black Friday sale though. Given that I 2nd Kurt @ DC in Havasu. He is great to work with and will dial the car in with Eibach springs.

Take the car to Kurt, get the springs and "spring" for the revalve as well. He gives a decent cash discount for the entire package.

I will be in Havasu the weekend of the Poker Run if you want a test ride in my car (same car as yours - 2019 Turbo XP 4 seater). Kurt did my shock valving, but I have Shock Therapy springs because I got them on sale locally.

Awesome, Thanks LOF

 

[HALLETT BOY]

I just bought a Pro R with the Dynamix suspension which I initially thought was a gimmick , but after a couple rides it’s amazing ! The difference between the modes is very noticeable .

 

[RIVERBORN]

Do some research, I may be wrong, but few years back eibach manufactured most of off-road springs. They are a spring manufacturer. Most companies do not manufacture their own, rather then purchase springs from eibach etc, then valve and label accordingly. Also I believe fox bought shock therapy.
Doesn’t give much of an opinion lol.
But most likely eibachs are on most sxs somehow.

 

[joecfd1]

I just bought a Pro R with the Dynamix suspension which I initially thought was a gimmick , but after a couple rides it’s amazing ! The difference between the modes is very noticeable .

Yes, they are pretty damn good out of the box. I put 130 miles on it this weekend . I’ll probably still have SDG work their magic though. They did my Turbo 4S and it was amazing.

 

[Hammer]

I just bought a Pro R with the Dynamix suspension which I initially thought was a gimmick , but after a couple rides it’s amazing ! The difference between the modes is very noticeable .

Same here. I’m still wondering if a spring kit is needed?

OP- I had eibach springs on my 16 XP with a revalve. Was worth every penny and then some.

I’m not sure ST is worth the money. I’d rather go to a smaller shop and get first hand knowledge/service. Sounds like the DC guy is the go to!

 

[LargeOrangeFont]

Same here. I’m still wondering if a spring kit is needed?

OP- I had eibach springs on my 16 XP with a revalve. Was worth every penny and then some.

I’m not sure ST is worth the money. I’d rather go to a smaller shop and get first hand knowledge/service. Sounds like the DC guy is the go to!

My buddies Turbo R springs are collapsing. Not as bad as the older cars, but still more of the same. I’d say do the springs sooner or later.

 

[Hammer]

My buddies Turbo R springs are collapsing. Not as bad as the older cars, but still more of the same. I’d say do the springs sooner or later.

Im assuming just springs. No need to revalve the dynamix right?

 

[LargeOrangeFont]

Im assuming just springs. No need to revalve the dynamix right?

There does not seem to be too many people out there messing with the dynamix much. I really don’t know how much is there to gain. Im sure some but the cars work pretty darn good.

You can revalve the Walker cars and they are really good or seems.

 

[Bowtiepower00]

1500 hard miles on my Dynamix Turbo R, and the springs have not collapsed. The car absolutely needs a revalve (and springs) if running hard or duning. I finally had a chance to put some miles on at Glamis without passengers, and it was a little better than being loaded, but still needs way more damping in the big stuff.

 

[Hammer]

1500 hard miles on my Dynamix Turbo R, and the springs have not collapsed. The car absolutely needs a revalve (and springs) if running hard or duning. I finally had a chance to put some miles on at Glamis without passengers, and it was a little better than being loaded, but still needs way more damping in the big stuff.

Who does valving on the dynamix?

 

[Bowtiepower00]

Who does valving on the dynamix?

I think most of the usual suspects offer it. There are some reviews on RZR forums- more in the Pro R section than the Turbo R section.

What I read somewhere (paraphrasing- and it could be BS) is that the original version 1.0 Dynamix was tuned stiffer when set to firm, but the 2.0 is not as stiff, to allow the X button to work. I pretty much stayed on the X button this last trip, which helped, but if I could get baja to be at the level of the X button the ride would be much better.

 

[Hammer]

I think most of the usual suspects offer it. There are some reviews on RZR forums- more in the Pro R section than the Turbo R section.

What I read somewhere (paraphrasing- and it could be BS) is that the original version 1.0 Dynamix was tuned stiffer when set to firm, but the 2.0 is not as stiff, to allow the X button to work. I pretty much stayed on the X button this last trip, which helped, but if I could get baja to be at the level of the X button the ride would be much better.

I cruised for the most part thanksgiving (first real seat time) I like Baja mode in the desert.

I need more seat time and to be able to run it hard and find out what it can and can’t do first hand.

Sorry for the thread jack OP

 

[DLC]

I have a 2018 razor XP four turbo and want to get my springs changed and I remember there was a thread where guys were talking about I believe Eibach was preferable to the shock therapy springs

Just to give you a heads up….

Eibach is a spring manufacture all they do is manufacture springs - you can order springs for motorcycle, SXS‘s, trucks & cars anything with a coil over shock.

shock therapy probably uses Eibach springs for their system

DC
SDG
alteach - who I used

and lots of other companies can set up your suspension

There is no magic!
On race trucks / cars one set up won’t work at every race - terrain changes & also distance ( length of race ) and fine tuning always happens

a 250 race vrs a 1000 race plays into things.

 

[Englewood]

I love these threads. Someone that’s gets it.

People run out and buy programmers, exhaust, speakers, lights, etc. and then skimp on suspension. All that BS doesn’t make you faster, suspension does.

SDG has done my last 4 cars and it makes a world of difference. If I was in Havasu I’d use DC. Sounds like he did @LargeOrangeFont’s car and that thing is dialed. I would do whatever he did since you have the same car.

 

[Englewood]

Who does valving on the dynamix?

SDG does it for the Turbo-S. They do not recommend it for the Pro-R. They tested extensively and came to the conclusion that the benefit wasn’t worth the cost.

 

[jailbird141]

Eibach.

 

[27Daytona]

Same here. I’m still wondering if a spring kit is needed?

OP- I had eibach springs on my 16 XP with a revalve. Was worth every penny and then some.

I’m not sure ST is worth the money. I’d rather go to a smaller shop and get first hand knowledge/service. Sounds like the DC guy is the go to!

Dynamics isn’t going to solve the shitty ride in washboard trails so yore going to need new springs at a minimum to smooth it out!

 

[LargeOrangeFont]

1500 hard miles on my Dynamix Turbo R, and the springs have not collapsed. The car absolutely needs a revalve (and springs) if running hard or duning. I finally had a chance to put some miles on at Glamis without passengers, and it was a little better than being loaded, but still needs way more damping in the big stuff.

Your short springs have not collapsed much yet? I think you have more miles on yours than my friend does on his. That’s interesting.

I’m sure the damping between the Turbo R and the Pro R are different but it does sound like the Turbo could use some adjustment while on the Pro R it’s debatable.

I remember we discussed that a bit when you got your car. If the dynamix isn’t in the ballpark for how you use it, there just is not a ton of adjustment.

 

[Bpracing1127]

My turbo s dynamic is valved and makes a huge difference

Fox Shock have internal bypass that they play with on top of the valving

 

[Bpracing1127]

Your short springs have not collapsed much yet? I think you have more miles on yours than my friend does on his. That’s interesting.

I’m sure the damping between the Turbo R and the Pro R are different but it does sound like the Turbo could use some adjustment while on the Pro R it’s debatable.

I remember we discussed that a bit when you got your car. If the dynamix isn’t in the ballpark for how you use it, there just is not a ton of adjustment.

Way more adjustment on the dynamic fox shock then you think

There is bypass tube and valving. Vs Walker only valving. The bypass tube is where you will really feel the difference

 

[Hammer]

SDG does it for the Turbo-S. They do not recommend it for the Pro-R. They tested extensively and came to the conclusion that the benefit wasn’t worth the cost.

Good to know. Thank you!

Dynamics isn’t going to solve the shitty ride in washboard trails so yore going to need new springs at a minimum to smooth it out!

noted. I’m not a suspension guru, but the springs will help with washboard trails? I’m assuming valving is for high speed compression and rebound?

 

[Englewood]

Good to know. Thank you!

noted. I’m not a suspension guru, but the springs will help with washboard trails? I’m assuming valving is for high speed compression and rebound?

Nothing will help as much as springs/valving. Springs are only a part of the solution.

 

[LargeOrangeFont]

Way more adjustment on the dynamic fox shock then you think

There is bypass tube and valving. Vs Walker only valving. The bypass tube is where you will really feel the difference

I’m talking the switch on the dash does not have much adjustment. If you are holding the OS button on the steering wheel through whoops, the switch on the dash isn’t going to fix the bypass tubes and valving.

 

[LargeOrangeFont]

Good to know. Thank you!

noted. I’m not a suspension guru, but the springs will help with washboard trails? I’m assuming valving is for high speed compression and rebound?

As Ian eluded to there are a lot more adjustments inside your new shocks compared to your old Walkers. The walkers were a basically a single stage single adjustment shock with no bypass, pretty simple, and they had a wide range of adjustment on that single knob, but it was always kind of a compromise.

The Fox shocks on your car are multi stage with bypasses internally, and multiple adjustments. What that means is there is settings to make the shock get stiffer as it is compressed, and make it react differently over different types of bumps. On top of that there is a little motor turning the “knobs” for you based on what the car is doing, and what setting you have selected on the dash.

The springs they put on the cars from the factory are not consistent. They are just cheap springs that are just designed to hold the car up with 4 300 lb dudes in it, so the car will ride better even with springs set up for your family and situation.

All that said, this car stock is probably going to ride better than your old modified car.

If it were me, Id put the crap on my car that you are going to run - cage, lights spare tire, tools whatever. Drive it a little, then do springs and get a feel for it and see if you feel like it needs internal shock work.

If you find you have it in the firmest setting all the time and it’s still too soft, you need shock work.

 

[Hammer]

As Ian eluded to there are a lot more adjustments inside your new shocks compared to your old Walkers. The walkers were a basically a single stage single adjustment shock with no bypass, pretty simple, and they had a wide range of adjustment on that single knob, but it was always kind of a compromise.

The Fox shocks on your car are multi stage with bypasses internally, and multiple adjustments. What that means is there is settings to make the shock get stiffer as it is compressed, and make it react differently over different types of bumps. On top of that there is a little motor turning the “knobs” for you based on what the car is doing, and what setting you have selected on the dash.

The springs they put on the cars from the factory are not consistent. They are just cheap springs that are just designed to hold the car up with 4 300 lb dudes in it, so the car will ride better even with springs set up for your family and situation.

All that said, this car stock is probably going to ride better than your old modified car.

If it were me, Id put the crap on my car that you are going to run - cage, lights spare tire, tools whatever. Drive it a little, then do springs and get a feel for it and see if you feel like it needs internal shock work.

If you find you have it in the firmest setting all the time and it’s still too soft, you need shock work.

Great information! I appreciate it. I plan on waiting for the car to be weighed down before messing with suspension. It is better than my old car with walkers. I can’t even compare this car as a whole to my old one. It’s not even close..

 

[Hammer]

Nothing will help as much as springs/valving. Springs are only a part of the solution.

thanks. That makes sense. Just not sure if I’m handcuffed with valving because of the dynamix. At the same time, it might be good enough for what we are doing. (It’s supposed to be a family cruiser.. lol). I just know how much a difference suspension work made on my XP….

 

[LargeOrangeFont]

thanks. That makes sense. Just not sure if I’m handcuffed with valving because of the dynamix. At the same time, it might be good enough for what we are doing. (It’s supposed to be a family cruiser.. lol). I just know how much a difference suspension work made on my XP….

Think of the dynamix in terms of baseball..

The Shock internals need to be close enough to be in the strike zone.

You can adjust with the dash settings to get the slider, or fastball you want, but if the shock internals are hitting the batter in the arm, you aren’t going to be able to make a strike out of that ever with the setting in the car.