[urq] Overboost Problem

[Patrick Carlier]

If I'm not mistaking , the nipple at the top of the wastegate
should be connected to the nipple at the top of the iglo .
Thus allowing the wategate to "read" real intake pressure
at the cis inatke , instead if atmosferic .

In theory there's supposed to be no differential , but with a clogged air
filter there can be  .

This is from heart , and it's a long time ago , so don't shoot me if I'm 
wrong
Pat


----- Original Message ----- 
From: "Ingo Rautenberg" <ingo.rautenberg at gmail.com>
To: "Ken LiPani" <mentosman42 at gmail.com>; "URQ" <urq at audifans.com>
Sent: Thursday, October 07, 2010 8:41 PM
Subject: Re: [urq] Overboost Problem


> Ken,
>
> The Urq (iirc) does not have anything attached to the nipple at the
> wastegate. I'm sure others will chime in as to whether I'm correct or
> mistaken. I don't have an Urq to look at right now.
>
> -Ingo
> On Oct 7, 2010 2:24 PM, "Ken LiPani" <mentosman42 at gmail.com> wrote:
>> I believe the hoses are routed as if it were an WX, i did not do this
>> swap it was like this when i picked up the car. the previous owner
>> said he did the swap but it doesnt seem like he knew what he was
>> doing. they basically took an MC-1 block and head and bolted on the WX
>> intake. i took down the distributor and wastegate numbers and they
>> seem to be from the mc-1.
>>
>> the wastegate only has 2 lines, the pressure in(the banjo bolt) and
>> the vac for the top nipple.
>>
>> i would love to use the knock sensor but ive been told i cannot just
>> hook up a mac-11 or mac-14 ecu.
>>
>> -Ken
>>
>> On Thu, Oct 7, 2010 at 1:25 PM, Ingo Rautenberg
>> <ingo.rautenberg at gmail.com> wrote:
>>> Ken,
>>>
>>> You say the lines were checked and SHOULD be routed correctly. The MC1
> has
>>> considerably higher compression than the WX engine - hence the knock
> sensor
>>> (which you're not using - and may well contribute to the pinging).  Are
> the
>>> hoses routed as if the engine were still a WX? Did you keep the old
>>> distributor and Hall sender or use the MC1 one (actually not sure if
>>> that
>>> would make a difference).
>>>
>>> Ingo
>>>
>>> On Thu, Oct 7, 2010 at 9:04 PM, Ken LiPani <mentosman42 at gmail.com>
>>> wrote:
>>>>
>>>> Car is an 83 quattro with an MC-1 swap but the P.O. that did the swap
>>>> left the MAC-02 ecu in the car. problem is i got the car out of the
>>>> shop and took it for a test drive after doing a lot of work and the
>>>> car is overboosting/predetonating. when i get into it(4500-6000) the
>>>> dash gauge reads 2 bars of boost and the car is definetly
>>>> predetonating. i know i shouldnt be making that much boost on this car
>>>> because it was never chipped and i dont think that the P.O. installed
>>>> a heavy spring.
>>>>
>>>> im wondering if the problem is that the wastegate that is on the car
>>>> is the one that came from the car the MC-1 came from and not the
>>>> original WX wastegate.
>>>>
>>>> all of the vac and pressure lines were checked and should be routed
>>>> correctly.
>>>>
>>>> thanks
>>>> -Ken
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>>>
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