Re: Wastegate mods (200q)

[Robert Myers <rmyers@inetone.net>]

At 10:59 AM 8/31/98 -0700, you wrote:
>I'd hate to see someone mess up their car because of increasing their
>boost.  If you're going to increase your boost in any fasion just check
>your spark plugs(to make sure there not leaning out), listen for knock,
>buy a boost guage, clean fuel fliter, strong fuel pump, and increase the
>boost very slowly.  Remember high flow exhaust and intake will also
>increase your boost.  Your boost wil also increase a nearly all ranges.

The precautions you suggest are quite appropriate.  My
(soon-to-be-sold-I-hope) '89-200tq has a mechanical boost gauge.  Maximum
boost settings were made incrementally with an eye toward looking for
impending mechanical disaster.  None was seen at boosts of up to 18 psig
(or 2.2 bar).  I stopped there.  

BTW :):):):):)


>At 10:30 AM 8/31/98 -0700, you wrote:
>>the computer will not provide enough fuel.  With all that extra air you
>will
>>lean out and burn a hole in a piston.
>
>True, if you can run the car at WOT (and full boost) for long enough
>time.
>Where, except on a track can you expect to operate the vehicle in this
>manner in the Good Ole USA?  Montana?  Don't count on it.  In only short
>
>bursts of WOT operation the excessive heat becomes just another moot
>point.
>
>>Mike wrote:
>>
>>> -----Original Message-----
>>> From: <QSHIPQ@aol.com>
>>> To: <quattro@coimbra.ans.net>
>>> Date: Monday, August 31, 1998 5:31 AM
>>> Subject: Wastegate mods
>>>
>>> >If you did ground out the FPR you have no overboost protection at
>>> >all.  What does that mean?  Well, what happens if your lower wg feed
>hose
>>> >goes?  Or, your WG diaphram blows out?  Unlimited boost, until boom.
>
>>> Bummer.
>>>
>>> Always wondered about removing the overboost protection. If all the
>91 200q
>>> will make is about 2.3 bar with the stock turbo, I just dont see how
>you
>are
>>> going to blow the engine. Can you explain please? Or are you talking
>about
>>> over revving the turbo itself?
>>>
>>> mike
>>> 91 200q with overboost protection at 1.8


___
   Bob
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