[urq] Overboost Problem

[Ingo Rautenberg]

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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>>
>>