RCCrawler Forums

axman2010 · 01-26-2009, 05:23 PM

Im running the SWX chassis with 4-link in the back and stock 3-link front. I want to keep the 3-link but want to improve my pinion angle. I have tried moving the upper link mounting on all the locations and its not helping. If I use longer upper links it tilts the axle forward and then the steering is all messed up. Please help me!

Also Im running losi shocks all around with axial shafts in them to get more ride height. The front is really stiff and doesnt articulate it all comes from the rears. I have played with the shock oils and mounting locations and it doesnt help. Running white spring in the front and yellow in the rear. I need help on this as well. Could pepole share their set-ups?

moabax · 01-26-2009, 05:29 PM

Post some pics of the underside and side view. It will help us alot to see what needs to be done.

axman2010 · 01-26-2009, 05:30 PM

Oh should have mentioned, I dont have a camera. Do you want crappy phone pictures?

rctrav27 · 01-26-2009, 05:46 PM

when i had my swx i noticed that the ball end link were binding on the skid plate so i shaved the end links a little and i got plenty of travel up front check that out

axman2010 · 01-26-2009, 05:51 PM

Thanks but I know thats not it. Thanks for the tip though

robsdak · 01-26-2009, 06:34 PM

pictures would really help. crappy cell phone pics or not.

ROCKCAD · 01-26-2009, 06:48 PM

i would change the axial shafts back to the losi. you should get plenty of ride height that set up. if you still want to change pinion angle without using longer upper links you can buy new c knuckles that allow you to change angles(i believe they are made by rcp, not sure in that). with white springs in front you be really soft. make sure you're not binding anywhere...good luck

axman2010 · 01-26-2009, 07:12 PM

Quote:

Originally Posted by robsdak

pictures would really help. crappy cell phone pics or not.

Ok I'll get some up in a few.

Quote:

Originally Posted by ROCKCAD

i would change the axial shafts back to the losi. you should get plenty of ride height that set up. if you still want to change pinion angle without using longer upper links you can buy new c knuckles that allow you to change angles(i believe they are made by rcp, not sure in that). with white springs in front you be really soft. make sure you're not binding anywhere...good luck

Ok I'll try the losi shafts. I'll double check nothings binding, and thats what I thought on the springs

TWISTEDBYDESIGN · 01-26-2009, 07:20 PM

without seeing pics its hard to say but i will give it my best. on stock axial axles you will want your pinon almost horizontal to the ground to get proper steering. that should not be such a big deal if your ride height is around 2.5"
or less you can even push it close to 3" depending on the setup. so if your drive shaft is binding within those parameters then fix your setup as there is probably something wrong. if it is not binding and you just want a better pinon angle buy the clockable axle c's from rcp

axman2010 · 01-26-2009, 08:39 PM

Ya no the pinion angle isn't so bad it causes binding I just dont like it. Im gonna try a lower ride height and space the three link at the y-link.

moabax · 01-27-2009, 11:38 AM

How much weight are running in the tires? Added unsprung weight in the front will greatly improve your problem as long as nothing is binding.

axman2010 · 01-27-2009, 05:35 PM

Oh ya thats true huh, Im running vanquish wheels with 4 weights in each front whatever that equals

moabax · 01-27-2009, 05:44 PM

That should be plenty of weight. The only other thing I can think of is your upper link placement. Either at the axle or at the chassis. You need the right amount of seperation on the chassis to get the antisquat you need. This may be your problem, when the front is loaded up tring to climb a ledge with only one tire, the suspension will want to squat, hence the other front tire will not droop. The links need to almost parralell to each other. You will want more seperation at the chassis side than the axle side.
There are several threads here about antisquat, rollcenter,ect-ect. Look them up in the search menu and see if it makes sense. Hope this helps.

01-26-2009, 05:23 PM	#1
axman2010 Rock Crawler Join Date: Sep 2008 Location: Portland Posts: 550	Help please! Im running the SWX chassis with 4-link in the back and stock 3-link front. I want to keep the 3-link but want to improve my pinion angle. I have tried moving the upper link mounting on all the locations and its not helping. If I use longer upper links it tilts the axle forward and then the steering is all messed up. Please help me! Also Im running losi shocks all around with axial shafts in them to get more ride height. The front is really stiff and doesnt articulate it all comes from the rears. I have played with the shock oils and mounting locations and it doesnt help. Running white spring in the front and yellow in the rear. I need help on this as well. Could pepole share their set-ups?

01-26-2009, 05:29 PM	#2
moabax Quarry Creeper Join Date: Sep 2008 Location: !! MOAB !! Posts: 373	Post some pics of the underside and side view. It will help us alot to see what needs to be done.

01-26-2009, 05:30 PM	#3
axman2010 Rock Crawler Join Date: Sep 2008 Location: Portland Posts: 550	Oh should have mentioned, I dont have a camera. Do you want crappy phone pictures?

01-26-2009, 05:46 PM	#4
rctrav27 Rock Stacker Join Date: Oct 2008 Location: enfield Posts: 93	when i had my swx i noticed that the ball end link were binding on the skid plate so i shaved the end links a little and i got plenty of travel up front check that out

01-26-2009, 05:51 PM	#5
axman2010 Rock Crawler Join Date: Sep 2008 Location: Portland Posts: 550	Thanks but I know thats not it. Thanks for the tip though

01-26-2009, 06:34 PM	#6
robsdak Pebble Pounder Join Date: Jan 2009 Location: Crestview Posts: 166	pictures would really help. crappy cell phone pics or not.

01-26-2009, 06:48 PM	#7
ROCKCAD Rock Crawler Join Date: Jun 2008 Location: dublin Posts: 734	i would change the axial shafts back to the losi. you should get plenty of ride height that set up. if you still want to change pinion angle without using longer upper links you can buy new c knuckles that allow you to change angles(i believe they are made by rcp, not sure in that). with white springs in front you be really soft. make sure you're not binding anywhere...good luck

01-26-2009, 07:20 PM	#9
TWISTEDBYDESIGN Newbie Join Date: Sep 2007 Location: Big Bear/victimville Posts: 43	without seeing pics its hard to say but i will give it my best. on stock axial axles you will want your pinon almost horizontal to the ground to get proper steering. that should not be such a big deal if your ride height is around 2.5" or less you can even push it close to 3" depending on the setup. so if your drive shaft is binding within those parameters then fix your setup as there is probably something wrong. if it is not binding and you just want a better pinon angle buy the clockable axle c's from rcp

01-26-2009, 08:39 PM	#10
axman2010 Rock Crawler Join Date: Sep 2008 Location: Portland Posts: 550	Ya no the pinion angle isn't so bad it causes binding I just dont like it. Im gonna try a lower ride height and space the three link at the y-link.

01-27-2009, 11:38 AM	#11
moabax Quarry Creeper Join Date: Sep 2008 Location: !! MOAB !! Posts: 373	How much weight are running in the tires? Added unsprung weight in the front will greatly improve your problem as long as nothing is binding.

01-27-2009, 05:35 PM	#12
axman2010 Rock Crawler Join Date: Sep 2008 Location: Portland Posts: 550	Oh ya thats true huh, Im running vanquish wheels with 4 weights in each front whatever that equals

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01-27-2009, 05:44 PM	#13
moabax Quarry Creeper Join Date: Sep 2008 Location: !! MOAB !! Posts: 373	That should be plenty of weight. The only other thing I can think of is your upper link placement. Either at the axle or at the chassis. You need the right amount of seperation on the chassis to get the antisquat you need. This may be your problem, when the front is loaded up tring to climb a ledge with only one tire, the suspension will want to squat, hence the other front tire will not droop. The links need to almost parralell to each other. You will want more seperation at the chassis side than the axle side. There are several threads here about antisquat, rollcenter,ect-ect. Look them up in the search menu and see if it makes sense. Hope this helps.

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