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-   -   Wraith 1.9.2 (http://www.rccrawler.com/forum/axial-wraith/607734-wraith-1-9-2-a.html)

MaX-D 04-17-2019 06:31 AM

Re: Wraith 1.9.2
 
Is it better for the truck to be lower, say with the lower links level

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Duuuuuuuude 04-17-2019 07:07 AM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by MaX-D (Post 5928060)
Is it better for the truck to be lower, say with the lower links level?

It kinda depends on the terrain you run on, but yeah, it is.

MaX-D 04-17-2019 07:26 AM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by Duuuuuuuude (Post 5928067)
It kinda depends on the terrain you run on, but yeah, it is.

Good deal. What is the best shock angle for crawling on rocks, obstacles and such?

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Duuuuuuuude 04-17-2019 07:34 AM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by MaX-D (Post 5928073)
Good deal. What is the best shock angle for crawling on rocks, obstacles and such?

I can't tell you that. There is no universal "best" setting. There's "pretty good" and "in the ballpark" until you take the time to tune it yourself

altd896 04-17-2019 09:40 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by MaX-D (Post 5928073)
Good deal. What is the best shock angle for crawling on rocks, obstacles and such?


Quote:

Originally Posted by Duuuuuuuude (Post 5928075)
I can't tell you that. There is no universal "best" setting. There's "pretty good" and "in the ballpark" until you take the time to tune it yourself


To additionally clarify, shock angle isn't a setting that's right, wrong, best or worst, as Duuuuuuuude says it's a tuning tool,

My half baked learning says the more angled from the travel path of the axle through the suspension cycle the softer the effective spring rate.

If spring A is too soft & spring B too heavy with the shock stood perpendicular to travel, laying the shock over with spring B can tune out some of it's rate. May then go to being too soft but that's sometimes how it goes.


The other thing that can be achieved is where the shock is angled to travel at the start at full extension giving a softer rate but at a point through the travel the change in angles brings the shock closer to perp to the travel, bringing the full rate of the spring back on to try limit bottoming out the shock. (think of IFS on buggys & shock position versus arm swing)


This however is not a limitless adjustment, at some point the shock will be so laid down as to do virtually nothing other than rotate around it's mount.

Duuuuuuuude 04-17-2019 09:58 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by altd896 (Post 5928273)
To additionally clarify, shock angle isn't a setting that's right, wrong, best or worst, as Duuuuuuuude says it's a tuning tool,

My half baked learning says the more angled from the travel path of the axle through the suspension cycle the softer the effective spring rate.

"thumbsup"

Softer, and progressively so as the suspension compresses.

Quote:

Originally Posted by altd896 (Post 5928273)
The other thing that can be achieved is where the shock is angled to travel at the start at full extension giving a softer rate but at a point through the travel the change in angles brings the shock closer to perp to the travel, bringing the full rate of the spring back on to try limit bottoming out the shock. (think of IFS on buggys & shock position versus arm swing)

I'm trying to picture this in my head and it's not happening.

Quote:

Originally Posted by altd896 (Post 5928273)
This however is not a limitless adjustment, at some point the shock will be so laid down as to do virtually nothing other than rotate around it's mount.

http://i47.tinypic.com/zks3g4.jpg

altd896 04-18-2019 02:07 AM

Re: Wraith 1.9.2
 
1 Attachment(s)
Quote:

Originally Posted by Duuuuuuuude (Post 5928276)
"thumbsup"

I'm trying to picture this in my head and it's not happening.

It was primarily from picturing in my head I got to that so I could be mistaken.

Edit; tinkered with a drawing
I wouldn't go so far as to call it proof but it did work as I pictured in my head,
though not as entirely feasibly as I imagined & it's dubious as to whether it would achieve what I thought it would.

Based around basic SCX10 style geometry using a 90mm shock with 25mm travel it can be seen where the shock is lees than perp to the lower link & arc of travel at full extension but as it reaches full compression the shock is now perp to the link & travel.
Now I'll quickly agree it's highly dubious that the 10deg incline of the shock at full extension does anything to change the spring rate noticeably.

Has turned out to be more of a thought exercise than anything truly practical.

Duuuuuuuude 04-18-2019 08:52 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by altd896 (Post 5928288)
Now I'll quickly agree it's highly dubious that the 10deg incline of the shock at full extension does anything to change the spring rate noticeably.

Has turned out to be more of a thought exercise than anything truly practical.

Yeah it'd spend so little time in transition that it wouldn't be noticable. Always nice to see somebody doing the math though. :ror:

Turtlejon 04-19-2019 01:42 PM

Re: Wraith 1.9.2
 
Can’t wait for those link risers, I imagine they will make quite a difference!

Duuuuuuuude 04-19-2019 06:26 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by Turtlejon (Post 5928630)
Canít wait for those link risers, I imagine they will make quite a difference!

Don't think that these are magic bullets, because they are not. They just give you options for tuning. On a bone stock rig the difference is subtle, but more apparent on a modded rig.

Tuning out torque twist and increasing capability is a method with several steps. Adjusting your links is one of those steps.

Turtlejon 04-19-2019 06:44 PM

Re: Wraith 1.9.2
 
Ah! Fair enough! On my old wraith / bomber when I switched to the link risers, it made a noticeable difference. It was quite modified already at that point, so that makes sense.

Duuuuuuuude 04-19-2019 06:49 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by Turtlejon (Post 5928702)
Ah! Fair enough! On my old wraith / bomber when I switched to the link risers, it made a noticeable difference. It was quite modified already at that point, so that makes sense.

When I put those up for sale I did a before/after video as a promotional tool. It was a little underwhelming. You feel it more than you see it.

Turtlejon 04-19-2019 06:54 PM

Re: Wraith 1.9.2
 
I’m definitely looking for anything to keep the front end of this new truck closer to the rock. I’ll keep trying to tune everything better, too!

Duuuuuuuude 04-21-2019 01:07 PM

Re: Wraith 1.9.2
 
So I made a thing today.

http://www.rccrawler.com/forum/membe...4550-66898.jpg

GA Dawg 04-21-2019 04:51 PM

Re: Wraith 1.9.2
 
Beautiful. Make 3 more things and you'll be on to something.

Duuuuuuuude 04-21-2019 05:04 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by GA Dawg (Post 5929123)
Beautiful. Make 3 more things and you'll be on to something.

I only have enough material for one more thing. That's ok though, this was only a test.

GA Dawg 04-21-2019 05:59 PM

Re: Wraith 1.9.2
 
I'd say that you've passed the test.

lonleycreeper 04-22-2019 09:58 AM

Re: Wraith 1.9.2
 
I miss DCW!

Natedog 04-24-2019 04:47 PM

Re: Wraith 1.9.2
 
Quote:

Originally Posted by Duuuuuuuude (Post 5929099)
So I made a thing today.

Them are purty. "thumbsup"

Shinchu 04-25-2019 01:55 PM

Re: Wraith 1.9.2
 
:shock: WOW!!!

that's all im gonna say at risk of turning this into the IFS thread... ;-)

so yeah... WOW!!!:shock:


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