Author Topic: 6.9 vs SLS vs standard sway bars  (Read 246 times)

orientrot

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6.9 vs SLS vs standard sway bars
« on: 04 January 2021, 05:04 PM »
I'm planning to add SLS to my 300SD project and have been wondering about what sway bars to use. I have the anti-squat rear arms and SLS components from a w126 and have a gen 1 W126 ABS differential I am planning to put a wavetrack LSD into. If I were to stick with stock sway bar options, are the 6.9 ones any stiffer/larger than the SLS or standard sway bar options?
'80 Orient Red 300SD- 185,XXX OM606 turbo project
'81 Orient Red 240D- 250,XXX 4-speed
'83 300D- 100,XXX- 5-speed OM617.950
93' 190E 2.6 Sportline Limited Edition- 89,000- 5-speed, megasquirt project
'03 Sprinter 2500- 240,XXX

Squiggle Dog

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Re: 6.9 vs SLS vs standard sway bars
« Reply #1 on: 04 January 2021, 05:24 PM »
Wow, that is a huge job. For what it's worth, the inner front fenders are completely different on the 6.9, so installing the struts would be next to impossible. There are also a lot of brackets welded to the body of a 6.9 for installing the spheres, which aren't present on a 300SD. And then all the metal lines...

A no-longer-active poster here named Casey bought a 6.9 with a reclining rear seat which he planned on putting an OM617 engine into with a head from a 300TD to run the HPF suspension system. I'm a bit sad he didn't finish the project.
Stop paying for animal cruelty and slaughter. Go vegan! https://challenge22.com/

1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 350,000+

orientrot

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Re: 6.9 vs SLS vs standard sway bars
« Reply #2 on: 04 January 2021, 05:38 PM »
I should clarify, I am not putting the hydropneumatic 6.9 suspension but the SLS rear hydraulic suspension from a 560SEL, nearly identical to the SLS rear option for the 116 (seems to have been popular on the Australian market 116), just a slightly different valve block and mounting. It's also somewhat similar to the system the 123 wagons had. I know a guy who has/had a parts euro 450SE SLS car (with LSD nonetheless) that I might be able to get the rear sway bar from.
'80 Orient Red 300SD- 185,XXX OM606 turbo project
'81 Orient Red 240D- 250,XXX 4-speed
'83 300D- 100,XXX- 5-speed OM617.950
93' 190E 2.6 Sportline Limited Edition- 89,000- 5-speed, megasquirt project
'03 Sprinter 2500- 240,XXX

Squiggle Dog

  • W116 Addict
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  • Posts: 2,125
  • https://fintail.org
  • Location: Surprise, AZ, USA
Re: 6.9 vs SLS vs standard sway bars
« Reply #3 on: 04 January 2021, 06:00 PM »
I should clarify, I am not putting the hydropneumatic 6.9 suspension but the SLS rear hydraulic suspension from a 560SEL, nearly identical to the SLS rear option for the 116 (seems to have been popular on the Australian market 116), just a slightly different valve block and mounting. It's also somewhat similar to the system the 123 wagons had. I know a guy who has/had a parts euro 450SE SLS car (with LSD nonetheless) that I might be able to get the rear sway bar from.

Ah! I've seen W116's with this option. It seems much more realistic than a complete front and rear suspension conversion. It seems that the rear struts might bolt in place of the shock absorbers and springs. I was actually in a conversation with a guy who wanted to buy all the 6.9 suspension parts from me to put in his W126 chassis to convert it to HPF. Madness!
Stop paying for animal cruelty and slaughter. Go vegan! https://challenge22.com/

1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C
1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Heated Seats, 350,000+

JeffCullen

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Re: 6.9 vs SLS vs standard sway bars
« Reply #4 on: 04 January 2021, 10:50 PM »
I was actually in a conversation with a guy who wanted to buy all the 6.9 suspension parts from me to put in his W126 chassis to convert it to HPF. Madness!
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1979 300SD - Astralsilber - 127,750km

orientrot

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Re: 6.9 vs SLS vs standard sway bars
« Reply #5 on: 05 January 2021, 09:54 AM »
I was actually in a conversation with a guy who wanted to buy all the 6.9 suspension parts from me to put in his W126 chassis to convert it to HPF. Madness!

Same guy that had the SLS 450SE had one of those early HPF II 500SEL, also a parts car. He had some other crazy stuff like a ponton wagon project (I believe it was a Binz) that he sold to a guy in Germany for a few thousand, way less than it was actually worth, then had some basically barn find condition fintails that he was wanting $500 each for. I knew that that was the cheapest I'd ever find one in reasonable condition for but definitely didn't/don't need any more projects so no real regrets.
'80 Orient Red 300SD- 185,XXX OM606 turbo project
'81 Orient Red 240D- 250,XXX 4-speed
'83 300D- 100,XXX- 5-speed OM617.950
93' 190E 2.6 Sportline Limited Edition- 89,000- 5-speed, megasquirt project
'03 Sprinter 2500- 240,XXX