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  #1  
Unread 20th January 2019, 08:22 PM
Beachworm Beachworm is offline
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Default How to improve SH rear wallow?

What modifications can you make to the SH rear to get rid of the wallow?
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  #2  
Unread 20th January 2019, 09:30 PM
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Rally Rally is offline
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Improving an SH is possible but it’s more involved than with an SG. The readily available kyb dampers are no good and are as bad as the original ones. So you need to look elsewhere. I think in the US at least Koni had dampers for the SH. If so, this would be a great way to go. The other problem with the the SH are bushes. They are so soft they allow far too much movement which is exactly what you don’t want. So better aftermarket bushes are needed. From memory, the rear suspension seems to need them most.

Try and stay with standard springs if you can. However, if you carry heavy loads then they are the best solution. You do loose articulation, it’s a compromise.
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  #3  
Unread 20th January 2019, 10:10 PM
Beachworm Beachworm is offline
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Replacing bushes is no problem. I've already done the front sway bar bushes and fitted adjustable end links but changing dampers wouldn't be economical at this stage as I just had new OEM ones fitted less than 12 months ago.
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  #4  
Unread 20th January 2019, 11:11 PM
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Rally Rally is offline
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You will never get rid of the wallow without decent dampers unfortunately. The SH daily driver I had did get new kyb dampers, which is why I know they are no good. I don’t know if there are any differences between the sh and sj as far as mounting points are concerned. If they are interchangeable, maybe the kyb ones for the sj are valved differently and could be used?

With regards bushes, I mean the main bushes for the suspension arms. They allow so much movement you end up with nasties like bump steer. So the car squirms on mid corner bumps and goes off line, not a pleasant experience. My SH I remember coming to a stop and it felt like the body of the car came to a stop about half a second after the wheels did.
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Last edited by Rally; 21st January 2019 at 01:36 AM. Reason: Typo
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  #5  
Unread 21st January 2019, 12:32 AM
Beachworm Beachworm is offline
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I have looked into a Whiteline kit (this is where I got the adjustable end links from) but prefer to wait until they really need to be replaced as I'm no longer able to do the job myself so need to save my pennies.
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  #6  
Unread 21st January 2019, 02:30 AM
ABFoz ABFoz is offline
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I would go with the Whiteline RSB kit. It's bang-for-the-buck and non-invasive. Cheers.
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  #7  
Unread 21st January 2019, 03:23 AM
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Rally Rally is offline
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Unfortunately that won’t change the fact the car is badly served by its dampers
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  #8  
Unread 21st January 2019, 04:05 AM
ABFoz ABFoz is offline
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@Beachworm, do you still have the original dampers? Cheers.

@Rally, were the replacement dampers that you installed oil- or gas-filled? I remember putting gas-filled replacements for our BG5 before and it made a huge difference.
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  #9  
Unread 21st January 2019, 04:39 AM
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Not sure, I think gas. Whatever kyb list for the sh.
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  #10  
Unread 21st January 2019, 06:33 AM
Beachworm Beachworm is offline
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Quote:
Originally Posted by ABFoz View Post
@Beachworm, do you still have the original dampers? Cheers.

@Rally, were the replacement dampers that you installed oil- or gas-filled? I remember putting gas-filled replacements for our BG5 before and it made a huge difference.
This is a bit of a story so bear with me.

I detected a small oil leak in my left rear shock. These were the original ones fitted at delivery. I got all 4 replaced with genuine Subaru parts (seeing most people on this forum seem to swear by genuine Subaru parts) so I assume they were oil filled as it was oil that was leaking out of them.

To everyone's surprise all 4 new shocks failed completely within 2 weeks of being fitted. They were replaced under warranty so I had no choice but to accept another set of OEM shocks. These ones seem to be holding up after 6-7 months.
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