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  #1  
Unread 3rd August 2009, 11:10 PM
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Default Coming - My New Setup

As mentioned in another thread, my Foz is at Wholesale Suspension Penrith this week for them to figure out a more suitable strut setup (as I bent both new rear KYBs crossing the Simpson Desert).

Here are my requirements:

"As arranged with Matt today, I'm dropping my car off to you this Monday morning for 3 days (longer if necessary) for you to determine what may be best for my needs.

As you know, both the new rear struts bent on the recent Simpson Desert crossing. I suspect the front struts may also have issues as there did not seem to be enough dampening on a series of ruts and this created a "see-saw" effect with one nose dive causing a fairly heavy hit at one stage. We were mainly travelling at 20-30 klm per hour but it was very very rough going at times. The fronts possibly overheated and lost performance.

The rears bent on heavy impact - the right hand side on a series of ruts which produced the see-sawing effect; the left hand side on a faster dune approach (probably 50-60 klm/hr) and hit a concealed rut. Yes, the load was heavy with an extra 60 litres of fuel, 40 litres of water, camping gear, fridge etc etc. Tyres were at 16-18 PSI.

Another issue I've had since the beginning. Initially you installed the raised King springs; +10mm (+30 reset down) in the front and +30mm in the rear. This I thought would make the rear sit up more than the front when unladen - but it doesn't - the rear seems a little lower than the front. In an attempt to rectify this last year I had Wholesale Blacktown install Kings 250 lbs/in +30mm in the rear thinking this would keep the rear up when loaded and also I was told by Blacktown (Mark) that the original raised springs were basically just normal road springs and not meant to be load carrying springs.

What would I like (my wish list I suppose):

- rear to be higher than the front when unladen, say at least 20 mm.
- spring perches to have a bit more clearance to the AT tyres (which are the smallest BFG ATs that fit)
- stronger struts
- reduced "see-sawing" on undulating terrain.
- the addition of a camber bolt in the rear (to compensate for the lift)

Other than the struts issue, the car itself seems to handle the heavy loads quite well."


I spoke with them last night and - they are rebuilding the struts with extra reinforcing/collar at the bottom hub connection (i.e. where they bent); then will use Koni adjustable inserts; and will move the spring perch up to give more tyre clearance for the BFG 21575R15 and also lift the rear a little.

I'll update when I get the car back - but it sounds good so far!
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  #2  
Unread 4th August 2009, 06:01 AM
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Sounds like a good plan there Kevin.

Will be interested to see what the come back with.

How did you end up going for fuel?
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  #3  
Unread 4th August 2009, 06:29 AM
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^ 120 litres - and just made it to Birdsville - the car spluttered!


The finished product compared to the existing (bent) rear strut

The build:





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Unread 4th August 2009, 06:43 AM
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Looks & sounds good so far Kevin.

Regards
Mr Turbo
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  #5  
Unread 4th August 2009, 07:13 AM
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how much did all this cost!!!!
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Unread 4th August 2009, 08:11 AM
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Quote:
Originally Posted by fandizzle View Post
how much did all this cost!!!!
hell yeah
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Unread 4th August 2009, 08:51 AM
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^ don't know yet & gotta be cheaper than bending $600 worth of struts on one trip
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Unread 5th August 2009, 05:04 AM
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Got the car back tonight - too dark for pics..........and $2,500 poorer. But they reckon there's no way I will break these and the Koni inserts are servicable if there is any issue. The tyre clearance is great; the car on soft setting feels good. I'm looking forward to experimenting with the settings.
The strut base that has been strengthened is a Tokico - i.e. Subie OEM - because it's actually thicker than the KYB after-market (even though the KYB has 15% more dampening).

The car is also higher - I'll get measurements on the weekend.
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  #9  
Unread 5th August 2009, 05:27 AM
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hahah thats a lot of money! but probs worth it! are the shocks lengthened?
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  #10  
Unread 5th August 2009, 07:32 AM
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This is looking like money well spent Kevin. Can't wait to see and hear how it all works out.
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