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Performance comparison '84 Euro 5sp vs. '87 S4 5sp

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Old 01-01-2011, 03:25 PM
  #31  
tv
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Originally Posted by pcar928fan
TV, when you are ready to sell that 85 EURO please give me a shout, sounds like you have a hell of a car there... You might want to check that tranny though...unless you have done something REALLY different to that car no 928 came with a 5spd Auto trans! I would SO love to have Tip S tranny's in my cars I can't even tell you, or even better the new PDK's!
a slow morning, still half asleep when typing


The euro will NEVER be sold


It is a nice one though and I intend to make it nicer, here are the codes;


058 - impact absorbers fr & r
139- heated seat left
220- locking diff
251- auto trans shorter gear for CH, S, and AU
261- heated adj. pass side mirror
340- heated seat right
395- light metal forged wheels
415- wider track 21mm spacers
454- cruise control
490- hi-fi sound
533- anti-theft device
567- windshield green tint
593- bosch ABS
650- sunroof


I wonder why the leather interior does not show up on the option list, was it standard on Euro's and not optioned? (this is the PET listing) and rub strips, were they standard at the time and the option would have been deleting them?
Old 01-01-2011, 08:36 PM
  #32  
Hilton
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Is there a 5-digit code under the options list on the sticker in the hatch or service manual?

5-digit codes are generally used for interior options, like leather, piping etc.

They don't show up in PET

Originally Posted by tv
a slow morning, still half asleep when typing


The euro will NEVER be sold


It is a nice one though and I intend to make it nicer, here are the codes;


058 - impact absorbers fr & r
139- heated seat left
220- locking diff
251- auto trans shorter gear for CH, S, and AU
261- heated adj. pass side mirror
340- heated seat right
395- light metal forged wheels
415- wider track 21mm spacers
454- cruise control
490- hi-fi sound
533- anti-theft device
567- windshield green tint
593- bosch ABS
650- sunroof


I wonder why the leather interior does not show up on the option list, was it standard on Euro's and not optioned? (this is the PET listing) and rub strips, were they standard at the time and the option would have been deleting them?
Old 01-01-2011, 08:57 PM
  #33  
tv
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Thanks for that info, I will check it when I see it ( some time from now)
Old 01-01-2011, 09:10 PM
  #34  
pcar928fan
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Yea, that is a NICE car you have there. Got any pics of it? Love to see some!
Old 01-02-2011, 05:51 AM
  #35  
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my .05c worth, I had a quick drag with a 85 manual up a steepish hill just Nth of Whittlesea, here in Melb.
My 87 S4 auto slowly caught the 85, just seemed like more grunt up the hill, not a lot in it, both cars stock.
Q? if i put S3 cams in a S4. a; would they fit? or b; go for GT cams?
Old 01-02-2011, 08:56 AM
  #36  
danglerb
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Euro S AT has about a 2300 rpm vs 1900 rpm stall converter, and that can make some difference.

I suspect many Euro S models in the US may have had all sorts of diddling to get through federalizing. My 85 has a long way to go before its "done", but its a scary car to push the pedal to the floor on right now.
Old 01-02-2011, 10:19 AM
  #37  
GlenL
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By request...

Here are dyno graphs of my '80 Euro S. (RoW for certain purists)

The lower graph is after a rebuild with some tuning mods to fuel mixture and spark. The higher graph is with 0.1l overbore (98mm pistons) and '85 exhaust "shorty headers."

With a quick back-calculate, it was doing 307 BHP DIN mostly stock and 333 BHP DIN with mods.
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Old 01-02-2011, 11:47 AM
  #38  
Iwanna928
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GlenL Awesome graph! Your car is putting down some nice numbers and in the lighter body she must FLY! It looks like an S4 would have a hard time keeping up with your Euro!
Old 01-02-2011, 11:55 AM
  #39  
hacker-pschorr
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EuroS by a mile.

Now send me that Pearl S4 so you don't have to put up with it's paltry performance anymore.
Old 01-02-2011, 12:11 PM
  #40  
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Blazing- I used to live on a hill and it was fun coming down because it would burble like crazy while coasting and going up it would just go like crazy to where I would coast to the top. A good euro goes equally well on hills and flat ground.


Stall info
Posted by Adam - ATB
Stall depends on year and spec. From the tech book:

85-86 US: 1650-2050
85-86 ROW: 2200-2600
87-89 S4 All: 1750-2150

JB posted;

the 28/05.06.08.09 stall speed is 2,200-2,600. The 28/16 is 1750-2150. The 28/07 is 1650-2050 the 28 /12 is 1750-2150


mine, very well preserved



Last edited by tv; 03-01-2011 at 03:12 PM.
Old 01-02-2011, 12:19 PM
  #41  
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I second that on the burbling! My 928 has headers w/ no cat into a 3 inch pipe that splits into a duel 2 1/2 inch pipe with 2 dynomax race bullits. She sounds very angry and I love to pass someone on the highway in 4th at WOT then coast as I pass, she burbles and the look on their face is pricless. One of the best qualities of the 16v is the sound they make. Just AWESOME!


Awesome looking intake!
Old 01-02-2011, 01:12 PM
  #42  
Jadz928
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Originally Posted by Hacker-Pschorr
EuroS by a mile.

Now send me that Pearl S4 so you don't have to put up with it's paltry performance anymore.
I pm'd you a tracking number. Currently somewhere south of "kiss my Buckeye" Ohio.

I miss my Euro, although don't have to go to far to drive it.
Perl though, makes it really easy not to miss it too much...

TV, your car look fantastic!
Old 01-02-2011, 01:27 PM
  #43  
Erik N
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Originally Posted by GlenL
By request...

Here are dyno graphs of my '80 Euro S. (RoW for certain purists)

The lower graph is after a rebuild with some tuning mods to fuel mixture and spark. The higher graph is with 0.1l overbore (98mm pistons) and '85 exhaust "shorty headers."

With a quick back-calculate, it was doing 307 BHP DIN mostly stock and 333 BHP DIN with mods.

Wow! You gained 26hp w/ the addition of the '85 manifolds? Wow.

Are you running a cat?
Old 01-02-2011, 01:39 PM
  #44  
GlenL
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Originally Posted by Erik N
Wow! You gained 26hp w/ the addition of the '85 manifolds? Wow.

Are you running a cat?
The gain was moving to a new block with new 1984 Euro 98mm pistons so a touch higher compression ratio and 0.1 litres more displacement plus the manifolds. Bad science but easier to do everything ot once. I figure 7 HP for the displacement, 5 for the CR and 15 for the manifolds...or something like that.

No cats. The exhaust is stock Euro S twin-pipes.

Incidentally... The block came from a barn in Michigan. (Thanks, Jim!) A seized bearing led to the destruction of the original block.
Old 01-02-2011, 01:47 PM
  #45  
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And the old cast manifolds are so heavy, you probably shaved 15 lbs off your car in addition to the power gain. That's 1 HP per pound!

Does anyone have a link or info on the actual gains w/ '85 manifolds? I installed mine while doing the engine swap, so I have no idea before/after.


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