STD Tuning Suspension More camber and more swaybar w116

More camber and more swaybar w116

More camber and more swaybar w116

 
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buzzboy
K26-2

45
02-20-2015, 10:09 AM #1
Racing a boat like the 300sd is just that, racing a boat. The front tires roll over under cornering and it has a good bit of body roll. All we've done for better handling is cutting the springs for a 2"/2" drop. I'm wondering if there's any way to get more camber on the front than stock allows for. I'd also like to either get a beefier sway bar or add a second sway bar for more roll resistance.
[Image: 328-IMG_1497.jpg]
This post was last modified: 02-20-2015, 10:47 PM by buzzboy.
buzzboy
02-20-2015, 10:09 AM #1

Racing a boat like the 300sd is just that, racing a boat. The front tires roll over under cornering and it has a good bit of body roll. All we've done for better handling is cutting the springs for a 2"/2" drop. I'm wondering if there's any way to get more camber on the front than stock allows for. I'd also like to either get a beefier sway bar or add a second sway bar for more roll resistance.
[Image: 328-IMG_1497.jpg]

Torkey
Dirty Diesel

220
02-20-2015, 11:05 AM #2
I race a W126 in Lemons and completely understand what you are talking about.  We actually got lucky and won our class at T-hil in 2013.  A simple thing you can do is dial in a ton of caster.  This will add camber when the wheels turn.  We "stumbled" onto extra camber when we replaced the lower control arm bushings with some cheap replacements.  After a couple of races the bushing were shot and we had all the camber we needed.  Tongue

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
02-20-2015, 11:05 AM #2

I race a W126 in Lemons and completely understand what you are talking about.  We actually got lucky and won our class at T-hil in 2013.  A simple thing you can do is dial in a ton of caster.  This will add camber when the wheels turn.  We "stumbled" onto extra camber when we replaced the lower control arm bushings with some cheap replacements.  After a couple of races the bushing were shot and we had all the camber we needed.  Tongue


79 300CD
82 300SD
Dirty Little Freaks Racing

buzzboy
K26-2

45
02-20-2015, 01:45 PM #3
We've been fans of you guys since you began racing. We've actually managed a C win in this car at Sebring this year so we're trying to go faster and be competitive in B, which is really hard. We need to cut ~10 seconds off our average speed to do that.
buzzboy
02-20-2015, 01:45 PM #3

We've been fans of you guys since you began racing. We've actually managed a C win in this car at Sebring this year so we're trying to go faster and be competitive in B, which is really hard. We need to cut ~10 seconds off our average speed to do that.

raysorenson
Superturbo

1,162
02-20-2015, 02:28 PM #4
Are you allowed to change the lower control arm bushings? There should be gains from using a very hard cast poly bushing or turn some nylon stock to size. You can even turn poly rod in a lathe, but I hear it's best to keep it cold. A spherical bearing would be best but I'm keeping a budget in mind here.

Not sure I would use delrin because the LCA on that chassis doesn't perfectly move in one axis. This might be too much flex for delrin to deal with.
raysorenson
02-20-2015, 02:28 PM #4

Are you allowed to change the lower control arm bushings? There should be gains from using a very hard cast poly bushing or turn some nylon stock to size. You can even turn poly rod in a lathe, but I hear it's best to keep it cold. A spherical bearing would be best but I'm keeping a budget in mind here.

Not sure I would use delrin because the LCA on that chassis doesn't perfectly move in one axis. This might be too much flex for delrin to deal with.

Torkey
Dirty Diesel

220
02-20-2015, 04:21 PM #5
Heh...  class B is a totally different race.  
Stiffening the suspension will also reduce roll.  We were able to reduce roll/improve cornering speeds doing that.  Nothing can beat us in the corners now, it's on the straights that we get killed.  
Not sure what springs/shock options are available for your chassis but you might find some gains there.
I've attached a picture from a couple of years ago showing the crazy amount of roll we had.  And check out the punishment that front tire is taking.
Attached Files
Image(s)
   

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
02-20-2015, 04:21 PM #5

Heh...  class B is a totally different race.  
Stiffening the suspension will also reduce roll.  We were able to reduce roll/improve cornering speeds doing that.  Nothing can beat us in the corners now, it's on the straights that we get killed.  
Not sure what springs/shock options are available for your chassis but you might find some gains there.
I've attached a picture from a couple of years ago showing the crazy amount of roll we had.  And check out the punishment that front tire is taking.

Attached Files
Image(s)
   

79 300CD
82 300SD
Dirty Little Freaks Racing

DanielK
Big Plans, No Clue

98
03-06-2015, 09:33 AM #6
I'm not sure about the W116, but on the W123, there are holes further out to mount the lower control arms. It's probably REALLY drastic, but hey, racecar. I agree with Torkey on the increase in caster resulting in an increase in camber. Adjust the caster, then the camber, then the toe, in that order.

Does anyone happen to know the Syndicate Racing guys who have that R107 SLC? I can't find any way to contact them. I have an R107 to give them.

[Image: FalkonSig.png]
DanielK
03-06-2015, 09:33 AM #6

I'm not sure about the W116, but on the W123, there are holes further out to mount the lower control arms. It's probably REALLY drastic, but hey, racecar. I agree with Torkey on the increase in caster resulting in an increase in camber. Adjust the caster, then the camber, then the toe, in that order.

Does anyone happen to know the Syndicate Racing guys who have that R107 SLC? I can't find any way to contact them. I have an R107 to give them.


[Image: FalkonSig.png]

buzzboy
K26-2

45
03-12-2015, 09:32 AM #7
Send an email to judgephil@24hoursoflemons.com and he can help you get their contact info.
buzzboy
03-12-2015, 09:32 AM #7

Send an email to judgephil@24hoursoflemons.com and he can help you get their contact info.

03-15-2015, 07:51 AM #8
Sounds like you need off-set LCA bushes... I've seen rear dampers with helper-springs just two days ago on a W123... Maybe this is something to explore if it's within the rules.

____________________________________

'88 300CD Turbo Coupé - OM603
DiseaselWeasel
03-15-2015, 07:51 AM #8

Sounds like you need off-set LCA bushes... I've seen rear dampers with helper-springs just two days ago on a W123... Maybe this is something to explore if it's within the rules.


____________________________________

'88 300CD Turbo Coupé - OM603

Torkey
Dirty Diesel

220
03-23-2015, 03:13 PM #9
The K-Mac bushings might give you some more camber too.
http://k-mac.com

79 300CD
82 300SD
Dirty Little Freaks Racing
Torkey
03-23-2015, 03:13 PM #9

The K-Mac bushings might give you some more camber too.
http://k-mac.com


79 300CD
82 300SD
Dirty Little Freaks Racing

 
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