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Very First 928 Test Drive

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Old 07-14-2023, 06:58 PM
  #16  
Speedtoys
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Might add, that new calipers all around, and a new booster and MC all on the same day, produced SUCH a difference, that my kid thought something was wrong. Was still on OE brake lines at the time as well.

It felt like it removed 1000lbs from the car.
Old 07-14-2023, 07:21 PM
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I cannot help but bring up this comparison again, seems more fitting now with the timeline.
Back around 1995 or 1996 I drove my first mid-year Corvette (63-67). It was a very nice survivor, meaning very, very original. It was fun to drive and I told my friend who restores Corvettes how old it felt, heavy, crude etc... He smiled and tossed me the keys to his wife's car (their son was the best man in my wedding). This was a 1965 Vette that was 100% new. All rubber, shocks, leaf springs, PS pump etc.... full nut and bolt restoration. It felt like a brand new modern car. Light, nimble, easy to drive etc... I fell in love and to this day I want one (should have done so back then when a nice one was $25k). To this day whenever I hear someone talk about how crude and loose a vintage Corvette is, I just smile.

Sure that sounds like a "really old car" being a 1965 Corvette, but at the time it was only 30 years old. Younger than all but the last few years of 928's are in 2023.

IMO this is why fully sorted 928's are selling for prices that would have been considered absurd 5-6 years ago. I cannot wait to do the full bushings / shocks etc.. on my 87.
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Old 07-15-2023, 02:32 AM
  #18  
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You should also consider that the US has way more sun as Germany because we are so far in the north. Sun and heat damage is here rare.
If I look at US interior pictures I see shrinked leather in a lot of cars. We don‘t know this amount of damage.
Old 07-15-2023, 03:16 AM
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If you can, try to find and test drive a well sorted 80-83 S RoW or 84-86 S2 RoW, and a GT or GTS.

Sadly there are still a high number of cars which haven't been refreshed where it counts even if they look nice. How will you know when you drive one that is set up correctly? You will love it.

Last edited by 8cyl; 07-15-2023 at 03:19 AM.
Old 07-15-2023, 09:39 AM
  #20  
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Originally Posted by SPS1989
Hello Rennlist,
Very heavy car, difficult to steer, accelerator far from the driver seat and hard to bury. any thoughts?
Sincerely,
SPS1989
All the other salesmen here seem to be addressing the wrong issue.

Are you a Lady?

You are definitely shorter than average if the pedal is "FAR" for you. "hard to bury" > YES compared to most cars! I have mentioned that in the past, YOU HAVE TO BURY the gas pedal to the FLOOR LITERALLY to get full acceleration -, which by the way invokes the DOWNSHIFT mechanism! That is the way it was designed! Not for the timid!

As for steering, on the highway I can let go of the wheel and it tracks straight as an arrow, on hard turns, you can feel the suspension working but the wheel does not react and it STICKS like glue! This is a canyon carver, one of the best handling cars ever made. (personal experience) Sure you could find a euro with swiss gears but those "complaints" will still be there.

here is Jimmy speaking about his 928 experience


Old 07-15-2023, 01:45 PM
  #21  
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Hello All,

Not to take away from the OP's post but I think this is applicable.

I'm going to respond with my 1st experience of driving my 86.5 home 250 miles through the Sierras this past Monday (purchased from CA, original family who purchased the car in Scottsdale, West Coast it's whole life, 55k miles) I drove it 20 feet onto a car carrier and that was it, left it for maintenance which included new Conti Sport tires, I won't get into everything I did ( everything checked though, AT bearing check, compression all 170's 10% etc) but it totaled approx. $11k incl. all parts from Roger. The last time I drove a 928 was when I fell in love with the car 35 years ago. I will add the paint is amazingly like new as is the interior, I was blown away once I washed it, and got over the shock of how it drove basically the rear end.

I will agree with the most of what the OP said, though I never buried the pedal, the front end felt OK but if I turn the steering wheel from 11 to 1 o'clock at 50-80 mph the rear end is all over the place, I assume it has to be the shocks (springs @ 55k?), all front and rear rubber looks good, but on uneven roads, deep rutted roads like you find going through Tahoe (sometime wheel/chain tracks as low as 4-6" deep, it was downright scary how the back end behaved. Hard to describe, it feels more like body roll ,the back end is not sliding around or bouncing. Does everyone feel every little bump on their well sorted suspension 928?

Ed, (Linderpat) and Roger were fantastic through my whole purchase. I reached out to both and told them my experience, Ed said to post here and see what everyone thinks. Shocks and springs? Refresh front and rear rubber bushings?

I'm not going to do the work myself so Koni's with the current stock springs and a alignment will set me back another $2200 I know it needs to be inspected, but, I'm at a crossroads, when I drove it home I said I can't believe it drives/ feels this bad, yes I feel every imperfection in the roads, perfect highway was great.

Opinions please

Last edited by Babado; 07-18-2023 at 05:15 PM.
Old 07-15-2023, 02:35 PM
  #22  
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Originally Posted by Brent A.
Greg, this may be the article you were referring to:
https://www.sportscarmarket.com/blog...che-928-report
That's the one.
Thanks...I won't misplace it again!
Old 07-15-2023, 02:38 PM
  #23  
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I would put Bilstiens with stock springs on your new car Babado
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Old 07-15-2023, 03:23 PM
  #24  
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I worked today with the Boge Red in the front and the damping of the pistons is way different from the Bilsteins I changed a half year ago on the other car.
You can press the shock with way less force together.
A few post before mine Greg told this too.
I would think this give the car a different behavior.
Same procedure as before, all wear parts new.


All worn parts changed


Interesting combinaton, this happens if a car is near 40 years old and someone did a wrong decision

Last edited by Darklands; 07-15-2023 at 03:26 PM.
Old 07-15-2023, 03:24 PM
  #25  
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"but if I turn the steering wheel from 11 to 1 o'clock at 50-80 mph the rear end is all over the place,"

Front arm (mostly lower) bushings(90%)...followed by sway bar bushings (10%)

People think shocks solve all, shocks only dampen spring action...if you're missing 1/2 of your spring, the chassis is not controllable.



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Old 07-15-2023, 03:26 PM
  #26  
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Originally Posted by Darklands
I worked today with the Boge Red in the front and the damping of the pistons is way different from the Bilsteins I changed a half year ago on the other car.
You can press the shock with way less force together.
A few post before mine Greg told this too.
I would think this give the car a different behavior.
Same procedure as before, all wear parts new.
All worn parts changed
You will get a different action from any new -vs- used parts, but the shocks have a job to do after the springs. LCA bushings are springs on a 928. If they are original, the shocks cant solve the real chassis problems.



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Old 07-15-2023, 03:33 PM
  #27  
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The lower control arm bushings are here new, It‘s a pita to change them so I will do this after my vacation. Last time I bent my 15 ton press.
I do all work by myself so I put the task in little work units.
Last week I forgot the parking brake of my VW caddy, the car rolled against a wall and I must do a new back light and a respray of the left quarter panel.

Last edited by Darklands; 07-15-2023 at 03:42 PM.
Old 07-15-2023, 03:35 PM
  #28  
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Originally Posted by Babado
Helol All,

Not to take away from the OP's post but I think this is applicable.

I'm going to respond with my 1st experience of driving my 86.5 home 250 miles through the Sierras this past Monday (purchased from CA, original family who purchased the car in Scottsdale, West Coast it's whole life, 55k miles) I drove it 20 feet onto a car carrier and that was it, left it for maintenance which included new Conti Sport tires, I won't get into everything I did ( everything checked though, AT bearing check, compression all 170's 10% etc) but it totaled approx. $11k incl. all parts from Roger. The last time I drove a 928 was when I fell in love with the car 35 years ago. I will add the paint is amazingly like new as is the interior, I was blown away once I washed it, and got over the shock of how it drove basically the rear end.

I will agree with the most of what the OP said, though I never buried the pedal, the front end felt OK but if I turn the steering wheel from 11 to 1 o'clock at 50-80 mph the rear end is all over the place, I assume it has to be the shocks (springs @ 55k?), all front and rear rubber looks good, but on uneven roads, deep rutted roads like you find going through Tahoe (sometime wheel/chain tracks as low as 4-6" deep, it was downright scary how the back end behaved. Hard to describe, it feels more like body roll ,the back end is not sliding around or bouncing. Does everyone feel every little bump on their well sorted suspension 928?

Ed, (Linderpat) and Roger were fantastic through my whole purchase. I reached out to both and told them my experience, Ed said to post here and see what everyone thinks. Shocks and springs? Refresh front and rear rubber bushings?

I'm not going to do the work myself so Koni's with the current stock springs and a alignment will set me back another $2200 I know it needs to be inspected, but, I'm at a crossroads, when I drove it home I said I can't believe it drives/ feels this bad, yes I feel every imperfection in the roads, perfect highway was great.

Opinions please
The tires you installed are 2X the tire that came on the car in 1986.

Konis, in 1986, were antiquated technology. They haven't changed, in design, since then. One could argue that they are worse. And the proceedure to break them in, dyno them to find at what setting they are similar, is complexand time consuming.

There was a fantastic Bilstein optional shock available for the 1986.5 cars. (I've still got a few fronts horded away.)

Modern day Bilsteins would be a good choice...your goal with the Konis will, after all, be able to adjust them as close as possible to the Bilstein's rebound numbers.
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Old 07-15-2023, 04:32 PM
  #29  
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The old green Bilstein before 86.5 ?
Old 07-15-2023, 04:41 PM
  #30  
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Originally Posted by Babado
Helol All,

Not to take away from the OP's post but I think this is applicable.

I'm going to respond with my 1st experience of driving my 86.5 home 250 miles through the Sierras this past Monday (purchased from CA, original family who purchased the car in Scottsdale, West Coast it's whole life, 55k miles) I drove it 20 feet onto a car carrier and that was it, left it for maintenance which included new Conti Sport tires, I won't get into everything I did ( everything checked though, AT bearing check, compression all 170's 10% etc) but it totaled approx. $11k incl. all parts from Roger. The last time I drove a 928 was when I fell in love with the car 35 years ago. I will add the paint is amazingly like new as is the interior, I was blown away once I washed it, and got over the shock of how it drove basically the rear end.

I will agree with the most of what the OP said, though I never buried the pedal, the front end felt OK but if I turn the steering wheel from 11 to 1 o'clock at 50-80 mph the rear end is all over the place, I assume it has to be the shocks (springs @ 55k?), all front and rear rubber looks good, but on uneven roads, deep rutted roads like you find going through Tahoe (sometime wheel/chain tracks as low as 4-6" deep, it was downright scary how the back end behaved. Hard to describe, it feels more like body roll ,the back end is not sliding around or bouncing. Does everyone feel every little bump on their well sorted suspension 928?

Ed, (Linderpat) and Roger were fantastic through my whole purchase. I reached out to both and told them my experience, Ed said to post here and see what everyone thinks. Shocks and springs? Refresh front and rear rubber bushings?

I'm not going to do the work myself so Koni's with the current stock springs and a alignment will set me back another $2200 I know it needs to be inspected, but, I'm at a crossroads, when I drove it home I said I can't believe it drives/ feels this bad, yes I feel every imperfection in the roads, perfect highway was great.

Opinions please
The tires you installed are 2X the tire that came on the car in 1986.

Konis, in 1986, were antiquated technology. They haven't changed, in design, since then. One could argue that they are worse. And the proceedure to break them in, dyno them to find at what setting they are similar, is complexand time consuming.

There was a fantastic Bilstein optional shock available for the 1986.5 cars. (I've still got a few fronts horded away.)

Modern day Bilsteins would be a good choice...your goal with the Konis will, after all, be able to adjust them as close as possible to the Bilstein's rebound numbers or slightly less.






Last edited by GregBBRD; 07-15-2023 at 04:56 PM.


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