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Sport Suspension/ Red Boges

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Old 02-28-2017, 05:54 PM
  #16  
Captain_Slow
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I had an 86.5 with th sport package (cashmere sport seats, limited slip, springs??, shocks). It had Bilstiens and under 100K on the clock, so everything looked original. It was a very stiff jittery ride on a gravel road. On well paved twisty roads it was amazing. I miss that. However, even on good roads the stiff sporty ride was not really GT cruiser comfortable. I felt fatigued after riding in that 928 for a few hours. I'm hoping Bilstiens with regular S4 springs will be the sweet spot. I find 8 year old Boges with about 50K to be too soft.

Last edited by Captain_Slow; 03-02-2017 at 05:18 PM.
Old 02-28-2017, 06:26 PM
  #17  
Mongo
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Originally Posted by SeanR
Koni's set on medium are going to give you a very close feeling to the Boge sport feeling with the ability to adjust them. Those are my choice.
Looking at Konis on Tire Rack right now. I know with the orange ones you have to collapse the strut and turn it to adjust. How many turns actually equate to medium? Are you running medium settings on all 4 corners?
Old 03-01-2017, 06:19 PM
  #18  
soontobered84
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Originally Posted by Mongo
Looking at Konis on Tire Rack right now. I know with the orange ones you have to collapse the strut and turn it to adjust. How many turns actually equate to medium? Are you running medium settings on all 4 corners?
Is Tire Rack REALLY cheaper than Roger?

1 1/2 turns would be medium. 3 full turns is lock to lock.

Seems like the car would ride strangely if the setting weren't the same
Old 03-01-2017, 11:42 PM
  #19  
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Sorry I have not asked for a price from Roger.
Old 03-02-2017, 03:47 AM
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Bill Ball
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Originally Posted by Tom in Austin
928s to best of my knowledge only ever used one spring rate for all US cars. There are different "tolerance groups" that were designated by color markings on the coils to match up from side to side, but the spring rate was nominally the same.

So, "Sport Suspension" only meant different shocks like the Red Boges.
Agreed. I've never seen a "sport suspension" option code. M474 is "sport shock absorbers". The 3 tolerance groups for springs vary by about 10% total.
Old 03-02-2017, 06:41 AM
  #21  
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Originally Posted by siscogts
A little off topic but regarding red shocks:I have red boge on my 92 GTS , but part # is 928 333 051 16 for rears(never checked PN on fronts)...are those shocks the real red boges or just "painted red" boges?(my car has not M474 option from factory).
never seen other 928 gts around here, so I cannot ckeck...
Hi ,

Is it the same on both sides?
Have you checked the fronts?
Old 03-02-2017, 10:09 AM
  #22  
siscogts
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checked and fronts are 928.....07 , red.
rear 928 ......051 16 .red
all 4 are boge.
I think they are standard shocks just wondering if it is normal to have them red .(paint seems to be original).
Old 03-02-2017, 10:35 AM
  #23  
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I think that they should be grey, but they were maybe produced during a bad day at the Boge's factory

Anyway, it may be time to replace or rebuild them, if they are original.
Old 03-02-2017, 10:38 AM
  #24  
Gary Knox
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Koni shock adjustment - I've put Koni shocks on several 928's and a few other German cars as well. I find that they do not all have the same number of turns from soft to firm. Thus, I ALWAYS check the number of turns for the model of shock I'm installing (as I recall, the 928 ones are different front vs rear). I prefer 1/3 of the way from soft to firm for street/highway driving, thus I can accurately achieve this by counting turns from full soft to full firm, then going back to full soft and performing 1/3 as much rotation.

Just my experience - YMMV!!!
Old 03-03-2017, 02:06 AM
  #25  
siscogts
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Originally Posted by 928cs
I think that they should be grey, but they were maybe produced during a bad day at the Boge's factory

Anyway, it may be time to replace or rebuild them, if they are original.
Rebuilt some years ago. Tu
Old 03-03-2017, 10:17 AM
  #26  
Crumpler
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Originally Posted by Bill Ball
Agreed. I've never seen a "sport suspension" option code. M474 is "sport shock absorbers". The 3 tolerance groups for springs vary by about 10% total.
Spot on you guys.
I pulled the old sticker.
Listed as sport shock absorbers:

Old 03-03-2017, 06:35 PM
  #27  
Captain_Slow
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Now I understand what the dots mean. I thought it was a sport spring vs. regular spring code. So maybe I don't want Bilsteins and stock springs as that appears to be what I had. Maybe new Boge or adjustable Konis. Bob V just put new Boge on his GT...hope to get a ride in his car at Camp 928 or Frenzy before buying shocks.
Old 03-04-2017, 12:24 PM
  #28  
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Originally Posted by Captain_Slow
I had an 86.5 with th sport package (cashmere sport seats, limited slip, springs??, shocks). It had Bilstiens and under 100K on the clock, so everything looked original. It was a very stiff jittery ride on a gravel road. On well paved twisty roads it was amazing. I miss that. However, even on good roads the stiff sporty ride was not really GT cruiser comfortable. I felt fatigued after riding in that 928 for a few hours. I'm hoping Bilstiens with regular S4 springs will be the sweet spot. I find 8 year old Boges with about 50K to be too soft.
The 928 is not made for gravel roads. In Germany they hardly do not have any gravel roads but here in Sweden we do have some and I avoid them at any costs. The only one I know of driving a 928 on gravel roads is Jeremy Clarkson and he made a total mess of the car.
Åke
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Old 03-04-2017, 02:15 PM
  #29  
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Project 928 book shows that a lot of testing occurred on 'gravel' roads.

I find that the 928 is a blast to drive on gravel roads with nice balance and controllability in the corners. I have been known to 'seek them out' when on long boring, otherwise tarmac, trips.

Myles
Old 03-04-2017, 02:39 PM
  #30  
SeanR
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Dude, dirt road driving in a 928 is a lot of fun.


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