Custom springs for heavy kratons

[FatCatRC]

I remember seeing a thread on here about someone on facebook making custom shock springs for us kraton owners that have extra heavy setups ie jbi towers,chassis and 4985 combos. Can someone point me in the right direction to this guy?

 

[Monster Dork]

We really need dual-rate for überbasherified rigs to put a bit of pillow on that slam.

 

[FatCatRC]

Mines a pig and the springs are set to max preload and she still slaps hard and sags under it's own weight. I have 100wt losi oil and doesn't make much of a difference. I think the new v3/v4 springs are 6.2 lb so maybe a 6.75 to 7 pound spring might do it without making it undriveable.

 

[Prowler666]

Not sure what that thread was but I Picked up some of these beasts.

https://www.flexosprings.com/compression-springs
or from a quick search from USA

https://www.thespringstore.com/catalogsearch/advanced/result/?cs_od_mm[from]=24&cs_od_mm[to]=28&cs_fl_mm[from]=80&cs_fl_mm[to]=100&cs_rt_mm[from]=1.5&cs_rt_mm[to]=2.5009&cs_ld_mm[from]=&cs_ld_mm[to]=&cs_dt_mm[from]=&cs_dt_mm[to]=&cs_tc_mm[from]=&cs_tc_mm[to]=&cs_sh_mm[from]=&cs_sh_mm[to]=&cs_id_mm[from]=20.5&cs_id_mm[to]=22&cs_wd_mm[from]=&cs_wd_mm[to]=&cs_mt=&search=stock-compression-springs&unit_measure=me

At the end of the day.. they are just compression springs.. think outside the box

 

[Sandracer_NL]

We really need dual-rate for überbasherified rigs to put a bit of pillow on that slam.

After my springs were getting weak and would not rebound anymore, I bought a set of spare springs but those were to short. So I ‘MacGyvered’ my own dual rate springs, it was either that or wait for the new shocks and to be honest I wanted the see if the MacGuyvering would actually work
Rear springs went to the front shocks with max preload, and rear shocks got the front springs AND the new set of front springs. I set the shock collar free to move and act as a moveable divider between the two shocks. All the shocks now rebound again and actually surpised how they work now
BTW the new shocks arrived this week, but I think Ikeep running my custom dual spring shocks for now

 

[#ARRMArcfanboy4life]

Here is the shock spring list
https://www.arrmaforum.com/threads/arrma-spring-list-chart-for-4s-and-most-6s-vehicles.18704/

 

[FatCatRC]

Here is the shock spring list
https://www.arrmaforum.com/threads/arrma-spring-list-chart-for-4s-and-most-6s-vehicles.18704/

hmmm wondering if a set of mojave option springs might be the answer and just adjust the collars to make up the 15mm on the front and 25mm on the back or just buy springs to the spec I want fom a spring seller

 

[FatCatRC]

Not sure what that thread was but I Picked up some of these beasts.
View attachment 144719View attachment 144720
https://www.flexosprings.com/compression-springs
or from a quick search from USA
View attachment 144730
https://www.thespringstore.com/catalogsearch/advanced/result/?cs_od_mm[from]=24&cs_od_mm[to]=28&cs_fl_mm[from]=80&cs_fl_mm[to]=100&cs_rt_mm[from]=1.5&cs_rt_mm[to]=2.5009&cs_ld_mm[from]=&cs_ld_mm[to]=&cs_dt_mm[from]=&cs_dt_mm[to]=&cs_tc_mm[from]=&cs_tc_mm[to]=&cs_sh_mm[from]=&cs_sh_mm[to]=&cs_id_mm[from]=20.5&cs_id_mm[to]=22&cs_wd_mm[from]=&cs_wd_mm[to]=&cs_mt=&search=stock-compression-springs&unit_measure=me

At the end of the day.. they are just compression springs.. think outside the box

the uk site I'm waiting on a shipping quote. And the us site wants 47 buck usd to ship to me. I need a canadian site if possible

 

[FatCatRC]

Not sure what that thread was but I Picked up some of these beasts.
View attachment 144719View attachment 144720
https://www.flexosprings.com/compression-springs
or from a quick search from USA
View attachment 144730
https://www.thespringstore.com/catalogsearch/advanced/result/?cs_od_mm[from]=24&cs_od_mm[to]=28&cs_fl_mm[from]=80&cs_fl_mm[to]=100&cs_rt_mm[from]=1.5&cs_rt_mm[to]=2.5009&cs_ld_mm[from]=&cs_ld_mm[to]=&cs_dt_mm[from]=&cs_dt_mm[to]=&cs_tc_mm[from]=&cs_tc_mm[to]=&cs_sh_mm[from]=&cs_sh_mm[to]=&cs_id_mm[from]=20.5&cs_id_mm[to]=22&cs_wd_mm[from]=&cs_wd_mm[to]=&cs_mt=&search=stock-compression-springs&unit_measure=me

At the end of the day.. they are just compression springs.. think outside the box

on the us site I found these 2 for the rear and are the closest I could find in the same specs you have. Would these work for the rear spring 1 is 2.1 nm https://www.thespringstore.com/pc081-1000-8500-mw-4000-cg-n-in.html?unit_measure=me spring 2 is 1.7nm https://www.thespringstore.com/pc090-1000-14800-mw-4000-cg-n-in.html?unit_measure=me what do you think is best to order. And these are the closest I could find for fronts 2.6nm https://www.thespringstore.com/pc095-1015-10500-sst-3500-cg-n-in.html.

 

[Prowler666]

I just googled compression springs to find them tbh, I just assumed u were stateside sorry, and measured shock collar diameter etc, the top 2 would fit ok, I think the collar dia is 21mm, can't remember now. The bottom one is in inches and stainless steel. Music wire is better for what we need them for imo. sorry cba to convert as I'm on my phone atm lol. I'm sure there is a spring manufacturer in Canada that will have something useful. I ended up getting 4x the shorter springs and 2x of the longer as I was in the same boat of not knowing if they would be too heavy, but imo they are spot on, just need to up cst of oil to compensate extra rating, I'm running 1350cst atm but will be trying 2000cst once I change internals to m2c ones in a few days.

 

[FatCatRC]

I just googled compression springs to find them tbh, I just assumed u were stateside sorry, and measured shock collar diameter etc, the top 2 would fit ok, I think the collar dia is 21mm, can't remember now. The bottom one is in inches and stainless steel. Music wire is better for what we need them for imo. sorry cba to convert as I'm on my phone atm lol. I'm sure there is a spring manufacturer in Canada that will have something useful. I ended up getting 4x the shorter springs and 2x of the longer as I was in the same boat of not knowing if they would be too heavy, but imo they are spot on, just need to up cst of oil to compensate extra rating, I'm running 1350cst atm but will be trying 2000cst once I change internals to m2c ones in a few days.

The springs you posted in your first pic are the ones you are running right? I am contacting a canadian site to send them the specs for a quote.

 

[Full Throttle R/C]

I

After my springs were getting weak and would not rebound anymore, I bought a set of spare springs but those were to short. So I ‘MacGyvered’ my own dual rate springs, it was either that or wait for the new shocks and to be honest I wanted the see if the MacGuyvering would actually work
Rear springs went to the front shocks with max preload, and rear shocks got the front springs AND the new set of front springs. I set the shock collar free to move and act as a moveable divider between the two shocks. All the shocks now rebound again and actually surpised how they work now
BTW the new shocks arrived this week, but I think Ikeep running my custom dual spring shocks for now
View attachment 144725

Was actually thinking about doing this last night

 

[Prowler666]

The springs you posted in your first pic are the ones you are running right? I am contacting a canadian site to send them the specs for a quote.

View attachment 144974

Yeah those are what I'm running.

 

[FatCatRC]

Yeah those are what I'm running.

Is there any chance you can make/post a video of you compressing the shocks (push down on front end) and do a drop test I wanna see how they look/react in real life before I buy. My shock guru @slick2500 thinks the springs might be a bit too stiff but you said you like them so I just want a video for reference before I buy it's a lot to order from uk and no other site has answered my requests for quotes. Thanks in advance.

 

[Prowler666]

The springs might be too heavy if you have a light weight rig as springs deal with weight. I'll see what I can do over the weekend, I'm about to install a few upgrades and new modded shock pistons which I could do with getting some video footage of aswell. East tactics has been posting a few videos on springs and shocks lately which you might want to take a look at.

 

[Prowler666]

drop test as requested, I have uprated the oil to suit and now installed hybrid m2c pistons, but its still a work in progress

 

[FatCatRC]

drop test as requested, I have uprated the oil to suit and now installed hybrid m2c pistons, but its still a work in progress

Thank you kindly. I think I'll order just the one set for the kraton, she's the pig out of the two. I'm happy with the video I don't think they are too heavy.

 

[Prowler666]

from what i can tell you from this set up the fronts feel to me a little heavy but i also think i could do with heavier on the back, the front feels like it bounces a little when driving but the back feels too soft even with thicker oil. still testing and messing though

 

[Monster Dork]

The rebound action sure recovers quickly, which is nice. I'm feeling heavier oil for those M2C pistons. That should address both problems you mention. Which oil are you using now?

 

[Prowler666]

the oil shown in the test vid was 1.5k front and 3k rear, so don't really want to go much heavier tbh.

there are a few pics near the bottom of my build thread of what ive been upto with the pistons to help them rebound nice and fast