Re: A4Q 2-stage accelerator???

[Achille Riviello <acriviel@mailhost.ecn.uoknor.edu>]

At 10:39 AM 11/18/96 EST, Dan Masi wrote:
>On Nov 17, 10:33pm, Ti Kan wrote:
>> Subject: Re: A4Q 2-stage accelerator???
>> Achille Riviello writes:
>> > I have noticed in my
>> > other drives that the accelerator pedal seemed to have 2 stages
>> > to it.
>> > ...
>> > Anyone have this experience?  Can anyone explain it?
>>
>> Yes, my A4q feels this way too.  The 2nd stage is probably due to
>> the secondary throttle butterfly opening, greatly increasing the
>> quantity of air intake into the engine.
>
>Exactly.  The throttle cable connects to a cam which operates
>only the primary butterfly during the first third or so of
>throttle application.  Once the throttle hits 1/3 open, the
>cam engages the secondary, so at this point you suddenly are
>fighting the springs of both the butterfly valves.
>
>Dan Masi
>'96 A4Q
>
>

Thanks for the clarification.

cheers,

Achille Riviello
acriviel@mailhost.ecn.uoknor.edu
tel: US(405) 329-1935