RE: 88 MB Urq questions

["Lewis, Gary M" <Gary.Lewis@West.Boeing.com>]

Snip

>   I got the Impression that the car would not pull more than 5,000rpm in
> 5th
>    gear. Which was about 105 mph.
> 
>    I suppose the question is ?, Was it me !!!!!!!!!!!!!!!!!!!! or was it
> the
>    Car !!!!!!!!!!!!!!!!!
> 
Is the Euro geared any differently?  Is the WR (WX??) geared differently
from MC's (or MB's for that matter?)  My car, while not an Ur-q, nor a WR,
is doing around 120 mph at 5,000rpm  (I'll test it tonight...   :-)   )

> This is specifically from the perspective of a U.S.-spec '83 UrQ, so I
> don't know how much this directly translates to youse guys, but...
> 
> The stock UrQ (U.S.) cam pretty much gives up the ghost around 5000RPM.
> Couple that with the stock turbo being a complete dog until around
> 3000RPM,
> and you have a surprisingly-narrow useful powerband from the engine (it's
> a lot of fun in between, though).
> 
The US MC seems similar.  Mine will rev freely to 6,000rpm, but does its
best 'pulling' between 3,000 and 5,500 rpm.

> I should think the Euro-spec UrQ would pull well past 105MPH. Sounds like
> maybe fuel or air starvation (do you have cat converter, or was that just
> a U.S. thing?). A clogged/dirty air filter, or fuel filter could have the
> same affect, as could a weak fuel pump (happened to me!).
> 
Good advice.  Also, check the WOT switch.  
HTH,

Gary Lewis 199km 86 5Kcst 5sp 1.8 Bar
TransGlobal Financial  (818) 384-7600
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