| Author |
Message |
Krochus
Samba Member
Joined: January 01, 2017
Posts: 892
Location: NW Arkansas
|
 Posted: Sun Feb 03, 2019 6:36 pm Post subject: IRS trailing arm swapping sides to alleviate slammed camber gain |
 |
|
If any of you slammed guys have done this mod I would like to pick your brains.
My irs rail buggy has its nuts dragging the ground but I’m nagged by an extreme camber situation. I can gain a little back with adjusting the trailing arm to the spring plate but that throws toe out of wack and makes my tire wear even worse.
So before I bite the bullet and lift the thing back up I would like to know how much of a difference swapping trailing arms side to side makes. Ideally I would like to get 4 degrees
_________________
1970 Turbo Baja Bug Turbaja 2165 t3/t4 Speeduino sequential EFI LS3 coil on plug ignition
1965 Chevy c30, Microsquirt turbo aluminum 5.3/nv4500 |
|
| Back to top |
|
 |
mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23950
Location: SHALIMAR ,FLORIDA
|
| Posted: Sun Feb 03, 2019 10:27 pm Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| pull em off and see then let us know.... |
|
| Back to top |
|
|
Glenn73
Samba Member
Joined: May 30, 2011
Posts: 1191
Location: Iowa
|
|
| Back to top |
|
|
Bruce
Samba Member
Joined: May 16, 2003
Posts: 17562
Location: Left coast, Canada
|
| Posted: Mon Feb 04, 2019 12:09 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| Glenn73 wrote: |
| I don't think it will do anything to switch them over. I would think to keep production cost low the only difference between the left and right one would be the shock and bump stop mounts. So dimensionally they would be the same. Just a different part welded on. . |
Your guess is wrong.
The factory TA has 1.5º of negative camber built into it. By swapping them L to R, you will reduce the neg camber by 3º
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
|
|
| Back to top |
|
|
Glenn73
Samba Member
Joined: May 30, 2011
Posts: 1191
Location: Iowa
|
|
| Back to top |
|
|
Bruce
Samba Member
Joined: May 16, 2003
Posts: 17562
Location: Left coast, Canada
|
| Posted: Mon Feb 04, 2019 3:27 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
Loosen the bolts that attach the spring plate to the TA. Tilt the rear of the TA up for more positive camber. Down for neg.
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
|
|
| Back to top |
|
|
Krochus
Samba Member
Joined: January 01, 2017
Posts: 892
Location: NW Arkansas
|
| Posted: Mon Feb 04, 2019 4:48 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| Bruce wrote: |
| Loosen the bolts that attach the spring plate to the TA. Tilt the rear of the TA up for more positive camber. Down for neg. |
Read my post again. To get enough I’m causing a pretty bad toe condition. I have 7/16 bolts in the spring plates to allow a greater range of adjustment.
This does work but not to the degree I need it to.
_________________
1970 Turbo Baja Bug Turbaja 2165 t3/t4 Speeduino sequential EFI LS3 coil on plug ignition
1965 Chevy c30, Microsquirt turbo aluminum 5.3/nv4500 |
|
| Back to top |
|
|
Krochus
Samba Member
Joined: January 01, 2017
Posts: 892
Location: NW Arkansas
|
| Posted: Mon Feb 04, 2019 4:53 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| Bruce wrote: |
| Glenn73 wrote: |
| I don't think it will do anything to switch them over. I would think to keep production cost low the only difference between the left and right one would be the shock and bump stop mounts. So dimensionally they would be the same. Just a different part welded on. . |
Your guess is wrong.
The factory TA has 1.5º of negative camber built into it. By swapping them L to R, you will reduce the neg camber by 3º |
This is great info!
My arms are boxed and my shock mount is a simple tab welded onto flat. No bump stops other than the ground. If I can get my calipers to bleed I might not even need to move those flipping side to side.
Or I might just snag an original set and start over and shave a bit of weight. My reinforced arms are a throwback to the days of when my rig was a woods buggy.
_________________
1970 Turbo Baja Bug Turbaja 2165 t3/t4 Speeduino sequential EFI LS3 coil on plug ignition
1965 Chevy c30, Microsquirt turbo aluminum 5.3/nv4500 |
|
| Back to top |
|
|
Bashr52
Samba Member
Joined: July 16, 2006
Posts: 5669
Location: On an island in VA
|
| Posted: Mon Feb 04, 2019 5:51 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| I did this on the rear of my Thing when I lowered it. You just needed to cut off the shock mounts and re-weld them in the correct spot after you swap them. |
|
| Back to top |
|
|
Bruce
Samba Member
Joined: May 16, 2003
Posts: 17562
Location: Left coast, Canada
|
| Posted: Tue Feb 05, 2019 11:58 pm Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| Krochus wrote: |
| Bruce wrote: |
| Loosen the bolts that attach the spring plate to the TA. Tilt the rear of the TA up for more positive camber. Down for neg. |
Read my post again. To get enough I’m causing a pretty bad toe condition. I have 7/16 bolts in the spring plates to allow a greater range of adjustment.
This does work but not to the degree I need it to. |
My reply wasn't to you. It was to the guy who replied immediately before I did.
_________________
| overheard at the portland Swap Meet... wrote: |
| ..... a steering wheel made from a mastadon tusk..... |
|
|
| Back to top |
|
|
Chris333
Samba Member
Joined: July 30, 2017
Posts: 665
Location: Ohio
|
| Posted: Wed Feb 06, 2019 3:39 pm Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
I flipped mine:
|
|
| Back to top |
|
|
Krochus
Samba Member
Joined: January 01, 2017
Posts: 892
Location: NW Arkansas
|
| Posted: Wed Feb 06, 2019 7:37 pm Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
I think this is gonna be very successful.
As you can see from the pics just swapping sides makes a huge difference. I did a little fine tuning after these pics and I think that not only will I beat the camber/toe issue I had but I will do so AND be able to lower the ride height as low as I would like it to be. AKA dragging my nuts on the ground.
_________________
1970 Turbo Baja Bug Turbaja 2165 t3/t4 Speeduino sequential EFI LS3 coil on plug ignition
1965 Chevy c30, Microsquirt turbo aluminum 5.3/nv4500 |
|
| Back to top |
|
|
GeneH
Samba Member
Joined: September 03, 2019
Posts: 3
Location: OH
|
| Posted: Wed Sep 16, 2020 7:26 am Post subject: Re: IRS trailing arm swapping sides to alleviate slammed camber gain |
|
|
| Bashr52 wrote: |
| I did this on the rear of my Thing when I lowered it. You just needed to cut off the shock mounts and re-weld them in the correct spot after you swap them. |
Darn it! I wish I saw this post BEFORE I welded on the bag mounts and completely assembled the chassis lol Well I know what I have to do, I just gotta get to it. |
|
| Back to top |
|
|
|
