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940 springs shocks and anti roll bars

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Old Sep 29th, 2020, 22:13   #11
360beast
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Originally Posted by Laird Scooby View Post
Have you tried doubling up on the standard ARBs Luke? Back ones should be easy to add, couple of adaptor plates to duplicate the mountings below the normal ones.

Fronts should be fairly easy too, a couple of nylon clamps on the side to side section of the bars and modified drop links to fit one above the other. Alternatively cut off the mounting eyes and use a second set of clamps to hold the ends together.

https://www.ebay.co.uk/itm/Hydraulic...m/164312834518

That's the idea i mean, they're surprisingly strong for what they are!

Would be a cheaper experiment than $450 or whatever it may be.
I haven't tried it Dave, I haven't measured them yet but I believe the saloons have thicker ARB so I would have to see about different size diameter clamps or ask if they will make them. I've got plenty of ARB's lying around... 5 I believe at last count 😂
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Old Sep 29th, 2020, 23:08   #12
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Much better than the factory one
What does that do then
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Old Sep 29th, 2020, 23:11   #13
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so what springs are any Good? . Iv never really seen how the rear arb works. As it isn't attached to the chassis or the car in the middle only to the axle at each end. So all that does is stiffen the rear axle. Unlike the front one which is bolted to the car then each suspension arm.
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Old Sep 29th, 2020, 23:16   #14
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What does that do then
https://www.ipdusa.com/products/6594...940-ipd-105672

It does the above. But it's better
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Old Sep 29th, 2020, 23:17   #15
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so what springs are any Good? . Iv never really seen how the rear arb works. As it isn't attached to the chassis or the car in the middle only to the axle at each end. So all that does is stiffen the rear axle. Unlike the front one which is bolted to the car then each suspension arm.
It uses the axle arms as a extension to the body
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Old Sep 29th, 2020, 23:41   #16
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so what springs are any Good? . Iv never really seen how the rear arb works. As it isn't attached to the chassis or the car in the middle only to the axle at each end. So all that does is stiffen the rear axle. Unlike the front one which is bolted to the car then each suspension arm.
The front one is bolted to the body via rubber D bushes so not exactly solidly. The rear one is bolted in two places to each trailing arm so helps to prevent them from moving independently in other wors, counteracts roll.

In other words, it does nothing to stiffen the back axle, just helps prevent the body roll. The thicker it is, the greater the resistance to twisting along its length and therefore the greater the resistance to the trailing arms moving independently and less body roll.
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Old Sep 30th, 2020, 22:36   #17
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The front one is bolted to the body via rubber D bushes so not exactly solidly. The rear one is bolted in two places to each trailing arm so helps to prevent them from moving independently in other wors, counteracts roll.

In other words, it does nothing to stiffen the back axle, just helps prevent the body roll. The thicker it is, the greater the resistance to twisting along its length and therefore the greater the resistance to the trailing arms moving independently and less body roll.
Yer i understand that. But if you look at the front it moves through bushes. The rear just bolts on either side and had no way of contacting the chassis or something on the car that doesn't move with suspension.

If you look at any race cars they will all contact the chassis and the ends connect to the suspension arms. I'm not saying its not a arb but it won't be anywhere near as good as the one on the front.

What spring are you running and ahocms may I ask.
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Old Sep 30th, 2020, 22:49   #18
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Yer i understand that. But if you look at the front it moves through bushes. The rear just bolts on either side and had no way of contacting the chassis or something on the car that doesn't move with suspension.
The rear still resists twisting between the trailing arms. Have a watch of this video, it's American so they call them sway bars but it's the same thing :

https://youtu.be/_liGnV3PTiQ

If you can understand that then you'll understand how the rear one works on the Volvo.
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Old Oct 1st, 2020, 18:21   #19
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Dude, like anything...all depends how far you want to go and what you want to achieve...
imo you will never get a decent handling 940 until you lose the standard 55 profile tyres as they are the first problem. a good compromise if you can't afford 17" wheels id to come down to a 50 profile for now...
Check all the bushes as they are usually shot and replace with either stock new or urethane...
IPD ARB's are a must pretty much. As for shocks n springs most people tend to go for a Bilstein damper and a 40 mm lowering spring. i am using BC BR series coilovers which i personally love.
It is also a good idea to strengthen the subframe as this is a weak point in the 930, or replace it...there are a few aftermarket solutions....
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Old Oct 1st, 2020, 22:25   #20
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Dual ARBs are amazing upgrade it's like driving with modern car now
https://www.rajce.idnes.cz/f867894469
https://www.rajce.idnes.cz/f1293301252
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