AMS Front Camber Adjustable Arms

SPOHN · 12-27-2012, 03:39 PM

Called SPL again. Same story. ''Give it a few months, very early next year''. He continued to say they had to do several revised sets to get them right for clearence issue for the retail market. He also claims there at the machine shop and it's hard to force them to do work. And that they had several out on some race cars even though not 100% perfect it was good enough for them.

I stated to him there's a big demand for them here and he was aware. They want them out. Sooooooo......... I have SPL everything else so I really want there front arms. My SPC are great though as long as the top nut is TQ to 150lbs. It has never slipped once but the top nut has started to strip.

MJB · 12-27-2012, 07:26 PM

Quote:

Originally Posted by SPOHN

Called SPL again. Same story. ''Give it a few months, very early next year''. He continued to say they had to do several revised sets to get them right for clearence issue for the retail market. He also claims there at the machine shop and it's hard to force them to do work. And that they had several out on some race cars even though not 100% perfect it was good enough for them.

I stated to him there's a big demand for them here and he was aware. They want them out. Sooooooo......... I have SPL everything else so I really want there front arms. My SPC are great though as long as the top nut is TQ to 150lbs. It has never slipped once but the top nut has started to strip.

I just realized SPL is right across from Uprev in Austin TX. When I was getting my tune I seen their building, but never even thought twice about it. I should pay them a visit and see if I could take a look at these arms they claim will be ready next year.

SPOHN · 12-28-2012, 05:53 AM

SPL will be good bit cheaper. $600 maybe.

Sh0velMan · 12-28-2012, 07:32 AM

Racing parts are expensive.. Don't want to race, get SPC or Kinetix, they're good enough.

$500-700 is where I'd expect the SPL arms to come in at. They look like cast aluminum versus machined billet like the Doran arms.

DR_ · 12-28-2012, 11:12 AM

I doubt you could adjust caster with those as they just slide in or out on the rod

Sh0velMan · 12-28-2012, 11:18 AM

Quote:

Originally Posted by DR_

I doubt you could adjust caster with those as they just slide in or out on the rod

If you slide the forward most rod outwards without moving the rearward one, you effectively move the top of the suspension rearwards, adding caster.

It would have its limits of course, but it could be used for fine tuning...

DR_ · 12-28-2012, 11:32 AM

Quote:

Originally Posted by Sh0velMan

If you slide the forward most rod outwards without moving the rearward one, you effectively move the top of the suspension rearwards, adding caster.

It would have its limits of course, but it could be used for fine tuning...

It doesn't look like you can move one without the other, that would bend the rods they are on.

The rods have to stay parallel and the bushings shouldn't allow for fore and aft movement.

DR_ · 12-28-2012, 04:03 PM

How can you move one side without moving the other if the rods are parallel?

Rusty · 12-28-2012, 04:06 PM

Quote:

Originally Posted by DR_

How can you move one side without moving the other if the rods are parallel?

The heim joints will allow for the difference.

Rusty · 12-28-2012, 04:15 PM

If you look at the back on the pivot. You can see the heim joints. They thread into the sleeve that you think is a rod. The way it is adjusted. You loosen up the set srcews that hold the sleeve in place, turn the sleeve in or out. If you turn both sides the same. You adjust camber. Now if you turn one side more then the other side. You are adjusting caster. Simple, and easy to do. Nothing to it.

gomer_110 · 12-28-2012, 04:28 PM

Quote:

Originally Posted by Rusty

If you look at the back on the pivot. You can see the heim joints. They thread into the sleeve that you think is a rod. The way it is adjusted. You loosen up the set srcews that hold the sleeve in place, turn the sleeve in or out. If you turn both sides the same. You adjust camber. Now if you turn one side more then the other side. You are adjusting caster. Simple, and easy to do. Nothing to it.

DR_ · 12-28-2012, 04:13 PM

If those are heim joints then
A. the whole control arm can move fore and aft
B. It still would not allow you to move one side without moving the other as the rods are still parallel and the assumtion is no bending.

DR_ · 12-28-2012, 04:38 PM

I understand now, sorry I wasn't grasping how one would affect the other.
So if you want more caster you would loosen the front sleeve and thread out the front heim joint which would move both heim joints in unison towards the back.

gomer_110 · 12-28-2012, 04:41 PM

Quote:

Originally Posted by DR_

I understand now, sorry I wasn't grasping how one would affect the other.
So if you want more caster you would loosen the front sleeve and thread out the front heim joint which would move both heim joints in unison towards the back.

Basically, although I'd bet anything that changing caster will by default change your camber with these arms.

DR_ · 12-28-2012, 04:47 PM

Quote:

Originally Posted by gomer_110

Basically, although I'd bet anything that changing caster will by default change your camber with these arms.

I agree. In my scenario above the positive caster would also add positive camber but if you have enough thread left on the rear heim joint before the sleeve bottomed into it, you could then get back your negative camber.

12-27-2012, 03:39 PM	#1 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 222	Called SPL again. Same story. ''Give it a few months, very early next year''. He continued to say they had to do several revised sets to get them right for clearence issue for the retail market. He also claims there at the machine shop and it's hard to force them to do work. And that they had several out on some race cars even though not 100% perfect it was good enough for them. I stated to him there's a big demand for them here and he was aware. They want them out. Sooooooo......... I have SPL everything else so I really want there front arms. My SPC are great though as long as the top nut is TQ to 150lbs. It has never slipped once but the top nut has started to strip. __________________

12-28-2012, 05:53 AM	#3 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 46 Posts: 14,844 Drives: Waiting on next Z Rep Power: 222	SPL will be good bit cheaper. $600 maybe. __________________

12-28-2012, 07:32 AM	#4 (permalink)
Sh0velMan A True Z Fanatic Join Date: Jan 2012 Location: Dallas/Ft.Worth Posts: 3,349 Drives: Noisily. Rep Power: 21	Racing parts are expensive.. Don't want to race, get SPC or Kinetix, they're good enough. $500-700 is where I'd expect the SPL arms to come in at. They look like cast aluminum versus machined billet like the Doran arms. __________________ Buy My Car! \| Build Thread

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12-28-2012, 11:12 AM	#5 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 18	I doubt you could adjust caster with those as they just slide in or out on the rod

12-28-2012, 04:03 PM	#8 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 18	How can you move one side without moving the other if the rods are parallel?

12-28-2012, 04:13 PM	#12 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 18	If those are heim joints then A. the whole control arm can move fore and aft B. It still would not allow you to move one side without moving the other as the rods are still parallel and the assumtion is no bending.

12-28-2012, 04:38 PM	#13 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 18	I understand now, sorry I wasn't grasping how one would affect the other. So if you want more caster you would loosen the front sleeve and thread out the front heim joint which would move both heim joints in unison towards the back.