Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Bad shocks - What would you do?

Thread Tools
 
Search this Thread
 
Old Jul 17, 2006 | 10:57 AM
  #31  
sweanders's Avatar
sweanders
Race Director
20 Year Member
 
Joined: Jun 2002
Posts: 11,252
Likes: 2
From: Sweden
Default

Bill, if you want Öhlins PM me and I'll get you in touch with a friend working there (at the HQ in Stockholm).
Reply
Old Jul 17, 2006 | 03:56 PM
  #32  
khalloudy's Avatar
khalloudy
Rennlist Member
20 Year Member
 
Joined: Aug 2005
Posts: 1,499
Likes: 216
From: Riyadh, KSA
Default

Bill,

if your car had a sport suspension, then it had the Boge red shocks and like att the S4-on 928s, the Marked Brown springs. Trust me and change your springs as they are the most overlooked item on a 20 year old car. The shocks of choice for me are the Boge Red. If you want a further sporty ride, you can go from brown springs to orange - something that went on the SE, CS and factory toy racing 928s around Weissach.

Sincerely,
Reply
Old Jul 17, 2006 | 06:24 PM
  #33  
Bill Ball's Avatar
Bill Ball
Thread Starter
Under the Lift
Lifetime Rennlist
Member
20 Year Member
 
Joined: Mar 2002
Posts: 18,648
Likes: 52
From: Buckeye, AZ
Default

I called Koni. The tech guy was very familiar with the 928 and said they had worked on valving with DEVEK and had not had any complaints about valving. He was puzzled too by my observations, thought somehow I just got some bad shocks, offered advance replacements. He said they used to do that for free but got burned and now charge your credit card and refund on receipt of the old shocks. That's very fair and common practice.

Kaled: I will look the springs over more carefully when I get them off. I did see a 928 part number on one rear spring but it doesn't match anything I could find - the number is 928 313 ? (looks like an up arrow) 1822. So, I will consider other springs after I get these off and figure out what they are.

Anders: I don't think I need Ohlins. If my new shocks will do what they do on George's car, I should be happy. BTW, George hit 185 MPH yesterday.

Last edited by Bill Ball; Jul 18, 2006 at 02:08 AM.
Reply
Old Jul 17, 2006 | 06:48 PM
  #34  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 4
From: Anaheim California
Default

Bill the Koni guys must have a shock dyno and can easily TEST your old shocks and tell you what it is and what it should be. I would think you might like some stiffer springs like Eibach. Less suspension change under loads makes the car feel much more stable and reduces camber change from body roll.
Reply
Old Jul 17, 2006 | 06:59 PM
  #35  
John Speake's Avatar
John Speake
Rennlist Member
20 Year Member
 
Joined: Feb 2002
Posts: 7,060
Likes: 42
From: Cambridge England
Default

I seem to rememeber someone here in the uk had a problem with new shocks and it turned out to be the way they had been stored...?

Wish I could remember, I think the cure was to remove from car and invert for some time ......anyone else heard this one ?

I could try and find out from the person who reported this...
Reply
Old Jul 17, 2006 | 07:00 PM
  #36  
Ketchmi's Avatar
Ketchmi
Drifting
 
Joined: Sep 2001
Posts: 2,050
Likes: 6
From: Bountiful, Utah
Default

Actually Jim, I think the Eibach's are too soft for what Bill is doing. I will be using 700# fronts and 450# rears for my 86.5' when it comes back out and it's lighter than his. Those bumpy high speed sweepers are not easy on soft springs. Most people on a track never get to corner at 130mph and up...who cares about ride, it's all about control!
Reply
Old Jul 17, 2006 | 07:16 PM
  #37  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 4
From: Anaheim California
Default

Dave, Bill spends 99.9 % or more of his driving NOT in an open road event and when you mention " bumpy " that may well be an argument , one good reason NOT to run very heavy springs. And as far as the .."Most people on a track never get to corner at 130mph and up" You need to come play at Willow Springs where a good car averages over 100 mph and turn eight is FAST...
Reply
Old Jul 17, 2006 | 07:31 PM
  #38  
Ketchmi's Avatar
Ketchmi
Drifting
 
Joined: Sep 2001
Posts: 2,050
Likes: 6
From: Bountiful, Utah
Default

Jim, you need to bring the old brown bomber out to Miller Motor Park and have some fun. We hosted the ALMS this weekend and it was one helluva show. The 3600' straight followed by a switchback is pretty interesting...

But back to the topic at hand...I'd much rather be safe for the limited time I was travelling at extreme speeds than be cushy for the rest of the time. I'd guess that stock springs are pretty much bottomed out on some of the corners during ORR and that doesn't allow much road holding ability when the roads are not very smooth. These are Nevada highways that lead nowhere, they are not in the best condition.
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

Theon Goes Full Carbon Fiber With Stunning New Build

 Verdad Gallardo
story-1

Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile

 Joe Kucinski
story-2

10 Used Porsches Are Selling for Way Too Cheap

 Joe Kucinski
story-3

Tuner Is Converting Porsche 911s Into Shooting Brakes

 Verdad Gallardo
story-4

This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917

 Verdad Gallardo
story-5

Is This Convertible Cayenne A Steal, Or A Returnless Investment?

 Verdad Gallardo
story-6

10 Best Non-Flat Six Porsches You Can Buy For Under $100K

 Joe Kucinski
story-7

Porsche's Top 5 Most Questionable Naming Decisions

 Verdad Gallardo
story-8

Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field

 Verdad Gallardo
story-9

6 Convertible Top MYTHS Most People Don't Understand!

 Michael S. Palmer
Old Jul 17, 2006 | 07:40 PM
  #39  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 4
From: Anaheim California
Default

I have heard that it is a very nice track ! You know if "I'd guess that stock springs are pretty much bottomed out " then perhaps the Koni shocks were damaged by bottoming out especially possible if the rubber "additional spring" 928 343 527 01/02 was left off the shocks....
Reply
Old Jul 17, 2006 | 08:00 PM
  #40  
Bill Ball's Avatar
Bill Ball
Thread Starter
Under the Lift
Lifetime Rennlist
Member
20 Year Member
 
Joined: Mar 2002
Posts: 18,648
Likes: 52
From: Buckeye, AZ
Default

I will most likely put it back together with the stock springs, if only to see how much the shocks have been contributing to my problems. I can do a very decent test locally on my twisty test circuit. It has some high speed bumps that instantly told me my current Koni shocks were bad compared to the original Boge. So, if the new ones are good or not, I will know. George is running his original stock springs and his car is stable. Dave, I know you like it hard!

BTW, Dave, I can't thank you enough for trying to get me fixed up this weekend despite the fact that you were away on a break. You, Garrity, Stan and another guy I talked to on the phone were all so "git 'er done" I felt guilty saying no, but I think it was the right choice. I could have other issues. In fact, I'm going to look over all the bushings real carefully and replace any that are accessible without a lot of fuss and any that are dodgey.

Oh, and I will be studying the coilover assembly parts as I take them apart.
Reply
Old Jul 17, 2006 | 08:03 PM
  #41  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 4
From: Anaheim California
Default

Bill..." Dave, I know you like it hard!" .....Ah too much information
Reply
Old Jul 17, 2006 | 08:49 PM
  #42  
Ketchmi's Avatar
Ketchmi
Drifting
 
Joined: Sep 2001
Posts: 2,050
Likes: 6
From: Bountiful, Utah
Default

He's ridden in my "street car" with cut down Weltmiester's on front and stock front springs on the rear...it's a little firm.

Jim, you have one of the most warped minds I know...In time you may catch up to me! I cringed when I read that, knowing it wouldn't pass without comment.
Reply
Old Jul 17, 2006 | 10:03 PM
  #43  
Bill Ball's Avatar
Bill Ball
Thread Starter
Under the Lift
Lifetime Rennlist
Member
20 Year Member
 
Joined: Mar 2002
Posts: 18,648
Likes: 52
From: Buckeye, AZ
Default

Heh. Sorry about that, Dave.
Reply
Old Jul 17, 2006 | 10:37 PM
  #44  
pmotts's Avatar
pmotts
Burning Brakes
 
Joined: May 2006
Posts: 809
Likes: 0
From: Portland, Oregon
Default

I imagine not many people realize what a great group of guys are at Motorsport in SLC. I can't thank them and there "git 'er done" attitude enough for their help on my trip to the OCIC.
If they ever get there website done people will be shocked at how many parts they have in stock

Originally Posted by Bill Ball

BTW, Dave, I can't thank you enough for trying to get me fixed up this weekend despite the fact that you were away on a break. You, Garrity, Stan and another guy I talked to on the phone were all so "git 'er done" I felt guilty saying no, but I think it was the right choice. I could have other issues. In fact, I'm going to look over all the bushings real carefully and replace any that are accessible without a lot of fuss and any that are dodgey.

Oh, and I will be studying the coilover assembly parts as I take them apart.
Reply
Old Jul 17, 2006 | 11:36 PM
  #45  
G Man's Avatar
G Man
Drifting
 
Joined: Aug 2002
Posts: 2,617
Likes: 2
Default

Bill, I'm suprised you even need front shocks. With that supercharger of yours I'm ceritan your front wheels are barely touching the ground!
Reply



All times are GMT -3. The time now is 12:49 AM.

story-0
Theon Goes Full Carbon Fiber With Stunning New Build

Slideshow: Built around a carbon-bodied 964 and a naturally aspirated 4.0-liter flat-six, this bespoke commission highlights how far the restomod formula has evolved.

By Verdad Gallardo | 2026-06-06 14:41:46


VIEW MORE
story-1
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile

Slideshow: Six genius gifts that'll make any Dad smile.

By Joe Kucinski | 2026-06-08 16:57:00


VIEW MORE
story-2
10 Used Porsches Are Selling for Way Too Cheap

Slideshow: These 10 used Porsches offer more driving thrills than their price would suggest.

By Joe Kucinski | 2026-06-03 09:11:13


VIEW MORE
story-3
Tuner Is Converting Porsche 911s Into Shooting Brakes

Slideshow: A Polish Porsche specialist is moving ahead with one of the most unusual 911 conversions in recent memory: a shooting brake version of the 991-generation sports car.

By Verdad Gallardo | 2026-06-01 19:46:47


VIEW MORE
story-4
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917

Slideshow: A Porsche Carrera GT has been transformed into a one-off coachbuilt machine that blends analog supercar engineering with styling inspired by the legendary 917 race cars.

By Verdad Gallardo | 2026-06-01 17:06:04


VIEW MORE
story-5
Is This Convertible Cayenne A Steal, Or A Returnless Investment?

Slideshow: A heavily modified Porsche Cayenne convertible with faux wood trim and a long list of flaws recently sold at auction for surprisingly little money.

By Verdad Gallardo | 2026-05-29 18:52:37


VIEW MORE
story-6
10 Best Non-Flat Six Porsches You Can Buy For Under $100K

Slideshow: If you have $100K to spend on a Porsche but want something a little different, these are the 10 best non-flat six Porsches you can buy.

By Joe Kucinski | 2026-05-28 15:36:11


VIEW MORE
story-7
Porsche's Top 5 Most Questionable Naming Decisions

Slideshow: For a company obsessed with engineering precision, Porsche has occasionally named its cars in ways that left even loyal enthusiasts scratching their heads.

By Verdad Gallardo | 2026-05-27 18:43:48


VIEW MORE
story-8
Pogea Racing's 964 Porsche 911 Reimagination Stands Out in a Crowded Field

Slideshow: Pogea Racing's latest Porsche 964 project blends carbon-fiber construction, modern chassis upgrades, and up to 500 horsepower while keeping the air-cooled 911 experience firmly analog.

By Verdad Gallardo | 2026-05-23 10:34:27


VIEW MORE
story-9
6 Convertible Top MYTHS Most People Don't Understand!

Slideshow: dispelling common convertible top myths

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE