Typhon Typhon 3S - Mojave 4S suspension arms and CVD's

[Neelis]

With some 3d printed brackets I am able to mount a 50mm fan to my 36mm motor.

And the front shocks are almost ready.

 

[Dan B.]

Very nice, ongoing build thread. Quite informative!

 

[Neelis]

Oelala

I used 800cst in the front shocks, but that seems to be a bit too thin for my taste, especially considering the temperature being around 13 degrees C at the moment.

I don't know which oil is in the rear, but that is too oil is too thick. Most likely the stock Kraton 6s oil, which is 1000cst.
Will fill it up with 800cst as well and continue from there.

Spring rate seems to be okay at the moment, but I like to try softer springs as well in the future.

To summarize that:

Stock spring rate of the Typhon 3s and Mega:
Front: 1.00n/mm 70mm
Rear: 0.84n/mm 85mm

The Typhon 6s stock:
Front: ARAC8941 - 70mm M (75.5gf/mm)
Rear: ARAC8948 - 84mm M (56.6gf/mm)

What I have installed:
Front: Shock Springs 70mm 1.13N/mm (Mojave) - ARA330637
Rear: Shock spring 84mm 0.94n/mm (Talion) - AR330501

To consider in the future from the Typhon 6s (but I already see that not all of them are available):
AR330233 SHOCK SPRINGS: 70mm S (67.9gf/mm)
AR330235 SHOCK SPRINGS: 70mm H (75.5gf/mm)
AR330237 SHOCK SPRINGS: 70mm H (84.9gf/mm)
AR330238 SHOCK SPRINGS: 84mm S (52.3gf/mm)
AR330239 SHOCK SPRINGS: 84mm M (56.6gf/mm)
AR330240 SHOCK SPRINGS: 84mm H (61.7gf/mm)

 

[Butchmeister]

Hit the wheel of a parked van at full speed. Shouldn't drive with 1 hand, film with the other hand when I am driving 3s for the first time with obstacles around.

Everytime I crash it’s down to filming and driving silly thing to do when going fast

 

[Neelis]

Worked on the shocks today. The shocks that I am using at the rear, were originally the front shock of the Kraton, the holes in the pistons are different. In general the piston holes are 1.2mm for the front shock and 1.4mm of the rear shocks for the 6s line.
In my case that resulted in way too much dampening in the rear, as the shocks are probably filled with stock Kraton 6s oil, which is 1000cst, vs 550cst of the Typhon 6s shock and 800cst that I am using in my front shocks.

I opened up my rear shocks and changed from 1.2mm piston holes and 1000cst to 1.4mm piston holes and 800cst.

It did the job.
At the front I now have 1.3mm piston holes. I think with 1.2mm and 800cst I will hit the sweet spot.

The newer piston are noticeably better made, they fit the shock tighter for a better 'seal'.

I made this video to show the difference:

For the front shocks I mounted shock boots:

I am very pleased with this upgrade, because I was not pleased at all with the original shocks. Now some weeks of patience for better weather...

Summary of the shocks:
Front:
- Shock Springs 70mm 1.13N/mm (Mojave) - ARA330637
- 1.3mm piston holes
- 800cst oil

Rear:
- Shock spring 84mm 0.94n/mm (Talion) AR330501
- 1.4mm piston holes
- 800cst oil

 

[Dan B.]

Worked on the shocks today. The shocks that I am using at the rear, were originally the front shock of the Kraton, the holes in the pistons are different. In general the piston holes are 1.2mm for the front shock and 1.4mm of the rear shocks for the 6s line.
In my case that resulted in way too much dampening in the rear, as the shocks are probably filled with stock Kraton 6s oil, which is 1000cst, vs 550cst of the Typhon 6s shock and 800cst that I am using in my front shocks.

I opened up my rear shocks and changed from 1.2mm piston holes and 1000cst to 1.4mm piston holes and 800cst.

It did the job.
At the front I now have 1.3mm piston holes. I think with 1.2mm and 800cst I will hit the sweet spot.

View attachment 341182

The newer piston are noticeably better made, they fit the shock tighter for a better 'seal'.

I made this video to show the difference:

For the front shocks I mounted shock boots:
View attachment 341183

I am very pleased with this upgrade, because I was not pleased at all with the original shocks. Now some weeks of patience for better weather...

Summary of the shocks:
Front:
- Shock Springs 70mm 1.13N/mm (Mojave) - ARA330637
- 1.3mm piston holes
- 800cst oil

Rear:
- Shock spring 84mm 0.94n/mm (Talion) AR330501
- 1.4mm piston holes
- 800cst oil

Thanks for sharing such specific details. This is some seriously good information. Nice work. Let us know how it handles when you get it out!

 

[Neelis]

Had to wait long for ARA3111152, but it finally arrived. With this I could assemble a spare diff, which I consider useful when bashing any vehicle from the 3s line.

Used the old internals of the original diff and the input gear I had was as good as new.

My old diffs and new parts

Filled with 10k diff oil

Finished diff. Had to use 0.6mm of shims for the diff to run okay. They gears are not made very accurate, because I needed so 'much' shims to not have a hard point rotating the diff.

 

[dougruss3]

Great build thread. I am definitely following this as I am also building a Typhon. Two thumbs up...lol

 

[FastMann40]

Hi all, recently I bought a second hand Typhon Mega for a reasonable price.
Idea is to convert it to 3S brushless and that will happen soon, expect to pick up the parts tomorrow.

View attachment 288577

Done so far:
- Purchased 2S lipo
- Purchased and mounted original wheels
- 60wt oil in shocks
- Removed 1 preload ring from the shocks, that did improve the handling
- Pinon gears came off, remounted and applied some thread lock


Future parts:
- Hobbywing Ezrun Max10 SCT ESC
- Hobbywing 3660SL 3200kv motor
- Driveshaft bearing
- 48dp 17t 5mm pinion
- 3s turnbuckles to fix extreme toe out
- 10.000cst oil for rear diff, 30.000cst oil for front diff
- Convert to EC5 connectors

Let's see how long the 48dp slipper clutch assembly holds up, if it fails, I know what to upgrade.
Also want to fix the wheel wobble, I find the engineering of that assembly a bit poor to be honest.

So, tomorrow I expect to have a nice

Nice

 

[Neelis]

Working on what I think is the coolest upgrade so far on my Typhon: Mojave 4S CVD drive shaft for the rear axle.
As I am often running bigger wheels than stock, the drive shafts suffer a lot. Bought some new once and half way the first battery pack the new drive shaft already failed. Going back to the LHS, looking at at fresh pack of drive shaft, I realized Arrma did an upgrade, nice, but I always kept an eye out for a decent CVD solutions.

Updated Typhon drive shafts, left the old, right the new:

@GRC mentioned in January this year in this topic ( https://www.arrmaforum.com/threads/...anite-with-typhon-rpm-arms.35882/post-1039716 ) that the new Mojave 4s offered and interesting solution for the Typhon.
With that in mind I went to my LHS, start comparing parts and concluded that without (major) modifications, I could fit the Mojave 4S suspension arms, hubs and CVD for the rear wheels, ow yes baby!

These are the parts I am looking at:

Driveshaft CVD	ARA210011
Wheel hex	ARA310988
Rear suspension arms	ARA330790
HINGE PIN 3X48.5MM	ARAC5029
HUB REAR: 4X4 BLX 4S	ARAC5043

Other drive shaft and arms related parts can be used from the Typhon 3s.
I was not sure about the width of the rear axle, using the Mojave 4s arms, but comparing them to the Typhon arms and hubs, the Mojave hubs are bigger, but the arms shorter, making the assemblies having the same length, happy days.

And look at those 4s wheel bearings, the small ones are the original 3s Typhon wheel bearings, the bigger for the Mojave 4s:

At this point I am waiting for the CVD's and wheel hexes from Jenny's... Will keep you updated!

 

[Neelis]

Wrenching time!
Have all the parts now to convert the rear drive train of my Typhon to Mojave 4s spec

This stuff feels decent!

 

[RobRun]

Wrenching time!
Have all the parts now to convert the rear drive train of my Typhon to Mojave 4s spec

This stuff feels decent!

View attachment 358658View attachment 358660

Nice!

 

[Neelis]

Installed the Mojave 4s parts, no set backs.

And tested the car on 4s yesterday with the big wheels on 4s, the drivetrain did great, but the ESC overheated (max10 with 3660 3200kv motor).
But men, it was flying