Carbon shocks technologies 2.5 coilovers

[Fifty]

My buddy tweedy (birdman automotive photography) just got these on his vehicle.

5” shock travel, so needs a high angle upper control arm I believe… 600 or 650 spring choice. I think he went with 650

There is an option for a dual speed compression adjuster. But they offer tuning options when ordering and he had his built tuned for his specific use.

They have a 3.0 coilover option for the front. That may be my route. I still haven’t figured out what I’m doing for the wife’s Yukon Denali XL. My current coilovers need rebuilding… again…
Twice in under 5k miles which just sucks. So it’s time to switch companies

 

[5StarCustmSolutns]

View attachment 446492

My buddy tweedy (birdman automotive photography) just got these on his vehicle.

5” shock travel, so needs a high angle upper control arm I believe… 600 or 650 spring choice. I think he went with 650

There is an option for a dual speed compression adjuster. But they offer tuning options when ordering and he had his built tuned for his specific use.

They have a 3.0 coilover option for the front. That may be my route. I still haven’t figured out what I’m doing for the wife’s Yukon Denali XL. My current coilovers need rebuilding… again…
Twice in under 5k miles which just sucks. So it’s time to switch companies

I don't know what your end goal is for your wife's Denali? Also, I'm not an expert suspension designer.....yet. But i have been studying susp design and geo since August, and have been involved in 5 24hr Off-Road Endurance Challenges in that time span.. Working them, but still around a few hundred hardcore Off-roaders and talking listening asking questions about suspensions, etc.. Ive also call and prob annoyed the $^!t out of 4, maybe 5 dozen off-road shops....and im not talking about Jim's Big Tire, not that Jim couldn't be an absolute genius at the give and take of designing the most optimal setup for any given chassis?? I mean, I was calling and wearing out the big dogs, the big name shops.. But hey, you gotta learn somehow.. Most answered my questions too i may be exagerating the annoying part....

Point is, unless youre going to be flat out abusing that vehicle, I mean 90mph on fireroad washboard and razorburn for hours, miles and miles of G-out whoops with no break, or entering the San Felipe 250? You'll never even come close to making a properly valved 3" front coilover even break a sweat.. If you just want them for the sake of being able to say you have them, then I would never advise someone against their indiviuality! That's a perfectly acceptable reason to get them in my book! BC nobody else has them on the street lol.. Very few anyway..

In all seriousness, if you just want them to have them and can afford them, I think that would be one of the coolest things you could spend money on. But if you plan on geting 3.0 and actually working them? Please look into roll cage's and stingers and 5 , 6 , and 7 point harnesses etc first.... Good luck

 

[Fifty]

There is more to it than just that.

For instance having a larger piston means larger diameter shims. . And less pressure to bend a shim. So better shimcontrolled tuning on chatter.

But yes, it takes more tuning for a daily driver 3.0 since it’s harder to get to a certain oil temp.

But high leverage arms on a 6k+ vehicle does benefit from the larger capacity shock. Washboard is the killer of shocks.

 

[5StarCustmSolutns]

There is more to it than just that.

For instance having a larger piston means larger diameter shims. . And less pressure to bend a shim. So better shimcontrolled tuning on chatter.

But yes, it takes more tuning for a daily driver 3.0 since it’s harder to get to a certain oil temp.

But high leverage arms on a 6k+ vehicle does benefit from the larger capacity shock. Washboard is the killer of shocks.

First, you are correct. Almost any shock can be valved for almost application...
-and-
The most important thing is they're gonna be yours.....get what you want! Re-reading that post, I didnt do a very good job of articulating my point.. Sorry.. It kind of comes off as if (I was ***'ing) I was saying you shouldn't be running 3" on the street....and I'm not the shock police or the street shock approver guy. Then in the last paragraph I sound like an overprotective grandma ...smh

Sorry man, I honestly started typing with the intent to say "if you just want them to have them, then it's all good.. I shouldve just said: you could save a lot of money and tuning time..

Weighed my truck 5 times this spring on commercial scales. I weighed the: front half > total > rear half, then turn around and got all 3 numbers again. Then avg out each positions. Then avg out each position from all 5 trips. Averaging: 3452lb front end, 6940lb total, and 3488lb rear.

Larger diameter disipates more heat. But idk if you can get 3.0's hot enough to be of concern on the street? I'll keep an eye out for your progress!

 

[Fifty]

Ah yea. Agreed.

We use the “suburban” for our family camping vehicle when we take our two Dogue de Bordeaux’s and the two kids.

The dogs take up the whole rear of the suburban, and we tow a small offroad “utility” trailer. Or we will conquer and divide and I’ll take the trx as well.

I have ADS shocks on it now and 3 out of 4 purge nitrogen. Going to have to rebuild them again. I’m getting about 200 offroad miles out of them between rebuilds which just sucks. (Regardless of its me or someone else rebuilding. Shock oil isn’t horrific, but it’s definitely getting heat)
There is nothing inherently bad with them, but the long washboards and the 6-10” consistent bumps at speed are just killing them I think.

My motor ate the dod/afm and that had to be rebuilt so the truck was down. So I haven’t had a chance to test fit the new shocks. Got it back the other day and im just playing catch up.

And designing and testing the shocks for the trx is almost done… so that will free up time.

But yea. Also the border patrol spec springs have gone soft. Not sure if I got a bad spring, but I think I need to invest in some dobinsons

 

[5StarCustmSolutns]

Ah yea. Agreed.

We use the “suburban” for our family camping vehicle when we take our two Dogue de Bordeaux’s and the two kids.

The dogs take up the whole rear of the suburban, and we tow a small offroad “utility” trailer. Or we will conquer and divide and I’ll take the trx as well.

I have ADS shocks on it now and 3 out of 4 purge nitrogen. Going to have to rebuild them again. I’m getting about 200 offroad miles out of them between rebuilds which just sucks. (Regardless of its me or someone else rebuilding. Shock oil isn’t horrific, but it’s definitely getting heat)
There is nothing inherently bad with them, but the long washboards and the 6-10” consistent bumps at speed are just killing them I think.

My motor ate the dod/afm and that had to be rebuilt so the truck was down. So I haven’t had a chance to test fit the new shocks. Got it back the other day and im just playing catch up.

And designing and testing the shocks for the trx is almost done… so that will free up time.

But yea. Also the border patrol spec springs have gone soft. Not sure if I got a bad spring, but I think I need to invest in some dobinsons

(I think this my third post about springs on three diff threads in last few min lol)

Depending on what youre wanting out of your springs?? I just met a guy that may be of some service for you??
Full Disclose: I havent actually met him, he's an engineer at Custom Spring Specialties. Name is Perry..

He worked me up a quote with two options of $448 and $498

He asked what I was triying to build and I said "well, Ideally I would like to turn my truck into the offspring of a trophy truck and a rock bouncer......basically I'm in the process of turning this LTZ Avalanche into something as close to an Ultra 4 car as I can get" And I paused waiting to hear the usual laughter or "Uhhhhh what" Im used to.... And Perry says: "well I doubt I can get you the amount of travel an Ultra 4 car has but being that it's production based uni-body on frame, nothing can" and he laughs at his own engineer joke... Which was AWESOME to hear, because nobody wants to get into the weeds of a custom job, they just wanna sell you off the rack stuff for your specific vehicle..

Perry asked a dozen questions and was patient while I crawled around under the truck and pulled put tire on/off/on. We talked for 35-40 min. He said it would take a couple days and he would get back to me

Three days later he gave me the two options (just occurred to me that I need copy paste this onto my pre-runner/long travel build thread)
Both sets of springs were 22" free length
Both had 14" ride height (spring length)
Both were progressive rate 170 - 230in/lb
Both were 0.66 wire diameter, but they were different types of steel
One had compressed length of 7.1" the other 5.75"
The shorter travel had a near perfect stress score of 122/120ksi (120 perfect)
The longer were 150/120, which he said was not really that bad. Said some factory come 180-190/120..

Springs may be the answer to your ADS rebuild issue??

Curious? COuldn't hurt to call Perry and ask??