[urq] Throttle Body Shaft Linkage swap

[Cody Forbes]

Heres mine:
http://jcforbes.com/jcfpics/9-11-03/P1010002
http://jcforbes.com/jcfpics/9-11-03/P1010004
http://jcforbes.com/jcfpics/9-11-03/P1010006
http://jcforbes.com/jcfpics/9-11-03/P1010007

And heres a bunch of pictures showing how I made one of 'em:
http://jcforbes.com/jcfpics/fuelrail
^ That was the only one I used the copper pipe for injector bungs. It was 
slightly too large ID so I had to use over sized o-rings. For the other few 
I've made I used bungs cut from a 944 fuel rail, and installed them the 
exact same way (brazed). I also stole the fuel fittings, test port fitting, 
and pressure reg mount from a 944 rail. Of course you only get 4 bungs, so 2 
donors are needed. Obviously the supply is finite, so for the next one I'm 
going to try to find some tubing/pipe that fits the o-ring better.

I don't think you can find any extruded ali rail stock that will work, it 
will run right into the throttle body, which is why I went the route I did. 
Another idea is to use extruded ali rail stock for the rear four cylinders, 
then use a "spider line" to feed the #1 injector. Basically just an injector 
bung with a small metal line connecting it to the rail, much line a CIS 
injector line.

-Cody Forbes
http://www.5000tq.com
'87 5ktq - Fast.
'86 5ktqCD
'86 5k
'86 5k


Ben Swann wrote:
> Can I see the pictures.  May not do it this time, but FWIW, I'd have
> been ahead money and time doing my own rail it seems.
>
> Ben
>
> -----Original Message-----
> From: Martin Pajak [mailto:martin at quattro.ca]
> Sent: Friday, July 20, 2007 2:25 PM
> To: Ben Swann
> Cc: quattro at audifans.com
> Subject: Re: [urq] Throttle Body Shaft Linkage swap
>
> Sounds like a new fuel rail is in order.
>
> I have pics of fuel rail made to work with MC intake/throttle so I am
> sure something like that can be done.
>
> Cheers
> martin
>
>> Ben Swann
>> Ado,
>>
>> Thanks. I was able to take them apart.  Turns out not only the shaft
>> was longer on the 5000 one, but also larger diameter, so cant swap
>> them.
>>
>> I'm working on adapting the end - not trivial.
>>
>> Surprising I have not seen anyone complain about issues with
>> interference between the throttle bodies and fuel rails when doing
>> EFI conversion.  The cable end smashes into the 034EFI fuel rail on
>> every throttle body and manifold combination I've tried.  The only
>> one that is close is the Ur Quattro
>> TB where I could bend the eye that the cable end fits in.  No way to
>> get the
>> 5000 manifold and TB to work with this fuel rail.
>>
>> Ben
>>
>> -----Original Message-----
>> From: Ado Sigal [mailto:a.sigal at bluewin.ch]
>> Sent: Friday, July 20, 2007 1:58 PM
>> To: Ben Swann
>> Cc: urq at audifans.com
>> Subject: Re: Throttle Body Shaft Linkage swap
>>
>> No BTDT, but in essence you are going to end up with shorter shaft
>> with slot for TPS. Wouldn't be easier to cut and file the shaft to
>> suit, than to remove butterfly and all that. Even if it fails, you
>> can always do
>> the swap. BTW, shaft is one piece, and 2 sunk in screws hold the
>> butterfly. Must clean the shaft before removing, and adjust butterfly
>> and Locktite the screws after the swap.
>>
>> Ado
>>
>>
>> Ben Swann wrote:
>>
>>> I am trying to swap the shaft and certain parts from the later MC-1
>>> throttle
>>> body to an earlier WX (Ur Quattro) throttle body.  This is so I can
>>> use the
>>> later switch(actually TPS) from later models.
>>>
>>>
>>>
>>> ANY BTDT on removing the shaft?  Is the shaft one piece that goes
>>> all the way
>>> through or does it split somewhere? Any diagrams.
>>>
>>>
>>>
>>> Ben
>>>
>>>
>>>
>>
>
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
> ---
> Watch this space for ads :)