Re: Audi 5000 TB Project Complete!

["Mawster Chadwick" <chadwick@mail.cadvision.com>]

It was from a 1987 5000.  (I think)  As long as it comes from a 1.9l audi 
engine, you should do okay.  It cost me 100$ canadian (way too much, but it 
was the only one I could find) .  I have a stock exhaust system *(Currently) 
and there's still a really good performance gain. Eventually, I plan to do a 
Ram Air intake and a Eurosport exhaust (headers, no catalyt.......), along with 
a new camshaft. The new Throttle body was almost exactly the same, sizewise and 
in terms of fit, but with a bigger secondary valve, a Venturi in the primary!! 
:), and a couple more vacuum line ports.  I just put screws tightly into the 
brass vacuum tubes to block them.  If you can wait until the weekend, I'll have 
pictures and the procedure on my webpage.  If I don't have it up by Saturday, 
give me some hate E-mail so I get off my butt. :)

> Howdy!
> 
> I've been looking at making that throttlebody mod, too.. I've got a stock
> '84.  I'd LOVE to read your proceedure on how you did this...
> 
> what kind of exhaust do you have? Stock? I heard that in order to take
> full advantage of the new throttlebody, you need a more-than-stock
> exhaust.
> 
> Also, what year Audi5000?
> 
> Thanks a million, I really appreciate it!
> 
> ~C
> 
> 
> On Sun, 12 Oct 1997, Mawster Chadwick wrote:
> 
> |Woo hoo!
> |
> |I finished installing an Audi 5000 Throttle body.  All I can say is WOW!  It 
> |was a little tricky, and I had to spend 3 hours drilling out the original @$^!^ 
> | Throttle Body bolts, but I got there.  I am going to put a big how-to on my 
> |web page in the next couple of days, as you have to do some bits of weirdness 
> |to the linkage to get it to work.  Swapping parts with the old TB and stuff....
> |Porting the Manifold for the bigger Throat was a joy.  I went through 10 bits 
> |on the dremel, but now it's perfectly matched.
> |
> |Has anyone done this conversion?  I noticed a strange kind of sleeve in the 
> |small throttle valve hole.  I think it's a Venturi.  Anyway, I notice a lot 
> |more power, even at half-pedal, before the large valve opens.  I've read about 
> |Venturi's and they actually speed up airflow by narrowing the air passage 
> |slightly, and opening up again gradually.  I guess this speeds up the air 
> |in the middle, and this faster air draws more air in behind it.  Kind of 
> |like a Velocity Stack.  If I could get-make another Venturi for the larger 
> |Throttle Valve, I bet there'd be some _serious_ airflow happening.
> |
> |Just sending a message to say "neener neener neener" :) I have +- 10 more 
> |horses in my car now.
> |
> |Regards,
> |Chad Ptasinski
> |1985 8V Scirocco
> |"http://www.cadvision.com/Home_Pages/accounts/chadwick/"
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> 
> --                                                                 --
>      Christopher Mende             ICEMT         O: 515-294-6738 
>      www.icemt.iastate.edu           @           F: 515-294-5531  
>      bayern.me.iastate.edu    Iowa State Univ    H: 515-294-6658
> 
> 
> 
Chad Ptasinski
1985 8V Scirocco
"http://www.cadvision.com/Home_Pages/accounts/chadwick/"
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