donistook

<center><img src="http://pictureposter.audiworld.com/AudiWorldPics/2000/Mvc-698f.jpg"></center><p>Steve, thought you might like to see this after the front end is removed

donistook

<center><img src="http://pictureposter.audiworld.com/AudiWorldPics/2000/Mvc-699f.jpg"></center><p>Here is the aluminum throttle body. Louis Milone fabricated this piece. We installed Turbonetics 2 1/4" to 2" adapter hoses and I fabricated the aluminum tubing from the intercoolers to the throttle body. The intercoolers have an outlet of 2 1/2" so I used a Turbonetic hose to reduce the size down to the 2 1/4" aluminum tubing. I used "U" bends and cut off the angles that I needed to produce the bends in the tubing. In the picture, you see the stock Bosch blowoff valve. We initially used Turbonetic aluminum valves, but the rubber gasket inside would blow apart too easily. The factory part has a steel plate inside...the same as the 993 turbo...and they are pretty good.

KevinH

nice oil cooler, you should market that.

ReyHey

Don are the A4 OEM valve and S4 the same?

I'm just asking because there is alot of us upgrading with new valves, and we're obviousley running alot less power than you.

Thanks

Rich N.
00'1.8T + $$$'s of other stuff

frank

also why did you reverse the postion of the valves

any reason other than the boost pipes are so Friggin' huge?!? ;P

Žob

I'll be gone until Saturday FYI though

donistook

I run them that way so that the hotter pressure gasses coming off of the intercoolers will hit the metal part of the valve instead of heating up the rubber gasket first. I bought the aluminum valves from Turbonetics, but I don't think that they make them. the rubber gasket inside of them is flimsier than the factory Bosch part......actually, the Bosch part is pretty good....it is also used on the 944Turbo and the 993 turbo

donistook

I will try to look on the microfiche tomorrow and let you know.

Žob

Part # 034 145 710a

frank

also I think they use a bigger turbo than the Ko3.

They might not be getting the high intake air temps I've been seeing on chipped street cars

I can't help thinking it's a heat stress
failure issue.