[s-cars] Re: S-CAR-List Digest, Vol 14, Issue 28

[Larry C Leung]

Matthew,

I'd venture a guess that the issue was fuel. My 
MRC (Mihnea) Stage 1 is somewhat sensitive to
fuel (specifically, 93 octane Mobil), and it will lightly
stumble when the wrong fuel is used. Mihnea offered
a method of making the car less fuel sensitive (back 
off the WG) but I elected to keep the extra punch and
chose to search out Shell, Sunoco or BP/Amoco. The
91 octane fuel, although matched to the higher altitude
needs, may have just pushed your car over the edge
when at the higher altitudes. I'd say, try to fill up at lower
altitudes on the occasion you go to extreme altitudes,
or contact Mihnea if you intend to spend much time at
altitude.

LL - NY


> Date: Mon, 6 Dec 2004 20:26:19 -0600
> From: Matthew Pelkey <matthew.pelkey at gmail.com>
> Subject: [s-cars] Stumble/Hesitation at altitude?
> To: s-car-list at audifans.com
> Message-ID: <6fc68b4104120618269dda4b8 at mail.gmail.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> Hey Guys,
> 
> I was just out in Breckenridge for a week with the Avant and 
> noticed
> that it developed a stumble/hesitation while at higher altitudes. I
> live in Madison, WI and have never noticed this happening. The only
> fuel that was available out there was 91 octane, at home I run 93. 
> The
> car has 110K and the only mods are Mihnea's chip and a Samco lower
> intercooler hose. Any ideas/explanations?
>