VP racing ackermann arms

[t3yf5g]

I know there was a post a while back about these, but it seemed like the post didn't really focused on the issue other than a bit about toe in.

Reading up on this article, Ackermann steering geometry - Wikipedia, the free encyclopedia, it's making a lot of sense. From the diagrams, it shows the tie rod behind the axle. Is this the proper way the VP ackermann arms supposed to be setup? If so, is that what those arms are on the backside of the stock knuckles?

I need to get new steering links anyhow because I have about 3 degrees of toe out and the tie rod is not adjustable, just one solid link.

 

[XJkid93]

On an xr-10 its behind the axle setup but with a wraith its in front of the axle, you buy the Wraith knuckles (not xr10 ones) and the ackermann arms for 11.99$ then buy the ackermann tie rod from vanquish. the difference between the xr-10 knuckles and the wraith ones are the arm that sticks out behind the knuckle on an xr-10, the stock wraith ones have it because they use the same arms for the xr-10 as the wraith.

 

[t3yf5g]

I see. Thanks for the explanation.

 

[XJkid93]

No prob"thumbsup"

 

[Whiplashdjs]

Just for clarification, your saying the xr10 VP tierod works with the wraith knuckle racing Ackerman arms combo? Thank You in advance!

 

[Fink]

Hopefully nobody minds me asking this here, as it's somewhat related, but does anybody think it'd be stupid to put the racing Ackerman arms on a Wraith that isn't going to be racing?

I'd really like to have orange Ackerman arms and the only ones I can get in orange are the racing arms.

Thoughts?

OP, if this bothers you, I will delete it.

Thanks!

Fink

 

[Lukefalls]

I'll give you a 1:1 answer that should be the same for scale.

Ackerman angles improve low speed cornering, not so much the high speed stuff. I know that Vanquish advertises that their arms improve high speed cornering. I do trust them and believe that they know what they're talking about.

Having ideal Ackerman will be especially beneficial to low speed cornering. Even with scale rigs, given the over power, locked rear end, and light weight.

 

[Fink]

I'll give you a 1:1 answer that should be the same for scale.

Ackerman angles improve low speed cornering, not so much the high speed stuff. I know that Vanquish advertises that their arms improve high speed cornering. I do trust them and believe that they know what they're talking about.

Having ideal Ackerman will be especially beneficial to low speed cornering. Even with scale rigs, given the over power, locked rear end, and light weight.

So you're saying True Ackerman geometry would be better for low speed cornering? Everything I've read has said the opposite.

To me, True Ackerman seems to make the most sense, with both wheels being in constant parallel (or as close to it as possible).

Fink

 

[Lukefalls]

Unfortunately, I am not an engineer or a suspensions/steering/chassis expert. I'm in the same boat as you...I read on the internet. Everything I can find seems to show that it greatly improves low speed steering. I don't believe everything that I read on the internet, but my limited knowledge says Ackerman has less importance the faster you go.

There is some talk that "go-fast" rigs will either use zero or negative. Here is one link in the 1:1 world:
Ackerman angle and IFS - Pirate4x4.Com : 4x4 and Off-Road Forum

I will try to find more...
Lucas

 

[Fink]

Unfortunately, I am not an engineer or a suspensions/steering/chassis expert. I'm in the same boat as you...I read on the internet. Everything I can find seems to show that it greatly improves low speed steering. I don't believe everything that I read on the internet, but my limited knowledge says Ackerman has less importance the faster you go.

There is some talk that "go-fast" rigs will either use zero or negative. Here is one link in the 1:1 world:
Ackerman angle and IFS - Pirate4x4.Com : 4x4 and Off-Road Forum

I will try to find more...
Lucas

I appreciate your honesty. I really don't know anything about it at all aside from the 15 minutes I spent reading through some Google results.

I guess my only concern is if going with True Ackerman (what the VP Racing Ackerman Arm yields) will cause any negative results for my Wraith. That's the only reason my research of steering geometry started.

Fink