Re: fuel economy, was :Re: 8v prices

[16v Jason <jason@scirocco.org>]

At 03:27 PM 10/3/00 , Dirk Schneider wrote:

>no the KR is in the convertible ( that is 100kg heavier than the usual 16v )
>and the PL is in the usual 16v Scirocco.


Ahh -- now I get it! :)  So indeed it is strange that the KR uses less gas.

Does the KR have the same Compression ratio as the PL?


>again you didn't get me right today.
>maybe I should write in german ?

Wenn du willst.  Heute ist doch ein Feiertag in Deutschland und ich habe 
heute deshalb keine Emails auf Deutsch vom Koelner Buero bekommen -- so I'm 
having withdrawal. :)


>it's not the question that the PL uses 0,2l more/100km than the KR,
>but I expected the KR ( with 10HP more, hotter cams, heavier car & wider
>wheels)
>to use MUCH MORE fuel than the PL which is actually not true.


Exactly -- See, I thought the KR was in the Cabrio, and I figured that the 
0,2l difference was due to the weight and aerodynamics.   But of course I 
had that backwards.

Do you have an AMS "Alle Autos aus der Welt" (oder aehnliches) catalog 
from, say, 1987, that you could use to compare the manufacturer's 
consumption values for both engines?



>got it ? :-)

Leck mich. :)



>The DX-8v (GTi) engines with the K-Jetronic are known to consume
>a lot of fuel when driven fast ( and you have to drive a GTi fast.. )
>There is even a word for that more-consumption here in the VW-scene
>it's called "GTi-Zuschlag" :-)


Hehe. :)  Das fand'ich immer komisch von Mercedes Dieselmotoren.  Absolut 
gelier Verbrauch beim Normalfahren.  Tret aber hart aufs gas und die 
saugen's runter wie einen 5-liter V8!  Ferund von hatte einen alten 
300TD-Turbo (1985).  Normal saugte der Kombi 9 liter oder so... But then I 
got in and beat the shit out of it and if I remember correctly used 22l -- 
und nicht auf der Autobahn -- nur in der Innenstadt.



>I assume that this high consumtion is due to the inefficient K-jetronic.
>I had almost the same engine ( EX-code,: same geometry, similar timing )
>but that was equipped with the 2E2 carburator ( delicate but efficient )
>and had very good gas per mileage, like all EX-equipped Sciroccos do.


Vergaser = god gas mileage?
I think that goes against everything I've been taught about carburetors! :)


>E is the compression and x=Isentropenexponent (~1.4)
>so simply speaking the efficiency rises with the compression of the engine.

Ja und deshalb habe ich nach dem Verdichtungsgrad des KR gefragt.

Ciao
Jason




>viele Grüße
>Dirk
>
>
>
>
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----------
1987 Scirocco 16v
1988 Mercedes 190E Sport Euro


http://www.scirocco16v.org


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