RCCrawler Forums

asw27x · 01-09-2011, 02:47 PM

are the axial aluminum knuckles high clear knuckles are they zero ackremen are well or no

ax10 · 01-09-2011, 03:13 PM

website says correct ackerman

asw27x · 01-09-2011, 03:44 PM

so thats a yes i saw that too

SmokinRocks · 01-10-2011, 12:20 AM

yep

constantmotion · 01-10-2011, 07:26 AM

They are not zero ackerman.

snoking · 01-10-2011, 08:07 PM

http://www.rc-truckncar-tuning.com/ackerman.html

Answer is yes, however if they are installed with the tie rod in the front of the axle, it is reverse ackerman. Read on.

Chris

stewbaru · 01-10-2011, 09:57 PM

Interesting article, thanks Chris.

corkysk8 · 01-11-2011, 06:55 AM

They are high clearance, but they are not zero ackerman. Correct ackerman and zero ackerman are not the same.

snoking · 01-11-2011, 07:49 AM

Zero ackerman steering for you AX-10

I have three different knuckles to look at.

1. Stock Axial plastic - Has Ackerman angle with problems noted below.
2. SP Racing Aluminum - Has Ackerman angle with problems noted below.
3. Axial BTA Aluminum - Has Ackerman angle that functions correctly.

On the first two lines drawn between the points meets out in front of the crawler, which is the reverse of the effect that Ackerman steering is suppost to accomplish. On the Axial BTA kit lines drawn though the points meet near the center of the rear axle, which is the correct Ackerman setup. Thus #3 is a correct application of Ackerman steering. The issue here is that the stock tie rod is in the front of the axle, which is reversing the ackerman effect. When you do BTA mod then ackerman is functioning as it should, causing the inside tire to turn sharper than the outside tire.

I will note that the Axial BTA kit gave my crawler a bit of tie out! Not sure if that is an issue of not. I have pictures in my "My four link conversion" thread.

Chris

losichris · 01-11-2011, 02:15 PM

Get the VP zero Ackerman knuckles!!!

01-09-2011, 02:47 PM	#1
asw27x RCC Addict Join Date: Apr 2010 Location: Ringwood Posts: 1,233	axial high clear knuckles are the axial aluminum knuckles high clear knuckles are they zero ackremen are well or no

01-10-2011, 08:07 PM	#6
snoking Newbie Join Date: Dec 2010 Location: Gold Canyon Posts: 21	http://www.rc-truckncar-tuning.com/ackerman.html Answer is yes, however if they are installed with the tie rod in the front of the axle, it is reverse ackerman. Read on. Chris Last edited by snoking; 01-11-2011 at 08:31 AM.

01-11-2011, 07:49 AM	#9
snoking Newbie Join Date: Dec 2010 Location: Gold Canyon Posts: 21	Zero ackerman steering for you AX-10 I have three different knuckles to look at. 1. Stock Axial plastic - Has Ackerman angle with problems noted below. 2. SP Racing Aluminum - Has Ackerman angle with problems noted below. 3. Axial BTA Aluminum - Has Ackerman angle that functions correctly. On the first two lines drawn between the points meets out in front of the crawler, which is the reverse of the effect that Ackerman steering is suppost to accomplish. On the Axial BTA kit lines drawn though the points meet near the center of the rear axle, which is the correct Ackerman setup. Thus #3 is a correct application of Ackerman steering. The issue here is that the stock tie rod is in the front of the axle, which is reversing the ackerman effect. When you do BTA mod then ackerman is functioning as it should, causing the inside tire to turn sharper than the outside tire. I will note that the Axial BTA kit gave my crawler a bit of tie out! Not sure if that is an issue of not. I have pictures in my "My four link conversion" thread. Chris Last edited by snoking; 01-11-2011 at 06:09 PM.

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01-09-2011, 03:13 PM	#2
ax10 Quarry Creeper Join Date: Jul 2008 Location: fremont Posts: 265	website says correct ackerman

01-09-2011, 03:44 PM	#3
asw27x RCC Addict Join Date: Apr 2010 Location: Ringwood Posts: 1,233	so thats a yes i saw that too

01-10-2011, 12:20 AM	#4
SmokinRocks Newbie Join Date: Dec 2010 Location: Long Beach Posts: 35	yep

01-10-2011, 07:26 AM	#5
constantmotion On the lookout for Rocks Join Date: Mar 2006 Location: Monroe, Louisiana Posts: 3,711	They are not zero ackerman.

01-10-2011, 09:57 PM	#7
stewbaru Quarry Creeper Join Date: Jun 2009 Location: Way down under!!! Posts: 314	Interesting article, thanks Chris.

01-11-2011, 06:55 AM	#8
corkysk8 Rock Crawler Join Date: Apr 2005 Location: Monroe, Louisiana Posts: 550	They are high clearance, but they are not zero ackerman. Correct ackerman and zero ackerman are not the same.

01-11-2011, 02:15 PM	#10
losichris Quarry Creeper Join Date: Jan 2009 Location: Rocklin Posts: 310	Get the VP zero Ackerman knuckles!!!

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