<center><img src="http://pictureposter.audiworld.com/711/stage2a.jpg"></center><p>This is THE one! The most radical 2.8 12V throttle body available for a street driven or dual-purpose car. There is nothing that remains that I know of that can flow more, smoother air that won't compromise low-end torque.

This particular throttle body is going out to someone today and I'll let him identify himself if he chooses.

This throttle body features a velocity stack that is longer than Stage 1 units which serves two beneficial purposes. First it allows for a higher charge air velocity due to it's additional length and two angle tapered sleeve. Secondly it locates the velocity stack inlet into a "sweet spot" in the plenum that allows for a smoother, less turbulent transition as it enters the velocity stack.

All stock butterfly screws on this unit are replaced with grade 8 screws that I grind to spec and install which allows a shorter screw and a lower profile in the butterfly shaft which in turn allows more air to flow by them. They are also an allen-head screws which offers smoother flow over the heads than a stock phillips head screw without all the tedious and time-consuming grinding of the screw heads and protruding tips. Easier/faster/more efficient to make em than to grind em when doing both sides instead of just the protruding tips.

This throttle body also features dual molded epoxy air foils on both sides of the velocity stack to flow more air into the secondary throttle bore. The transition is much more contoured and smoother than the "flat" area provided for in the stock throttle body. When finished the epoxy is then sealed with a polyurethane sealer/clear coat to further smooth it. This showed some pretty incredible results on the flow bench!

Additionally the TB butterly linkage is re-worked so the butterflies open a true 90 degrees, perfectly parallel to the bore at WOT. Stock Audi butterflies do NOT open all the way especially on the secondary side.

I'm including a steel MAF inlet with this TB so it's affect can also be measured in a before/after dyno run.

An objective and unbiased dyno result should be available in the next week or so by this throttle body's owner. Then we'll know if it's a worthwhile addition.

 

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Please keep us up-to-date with the gains/price.

Thanks!!!


Ryan Herrmann
Director of Marketing - Minnesota Audi Club

 

<center><img src="http://pictureposter.audiworld.com/711/stage2g.jpg"></center><p>Ran out of spare plastic ones so had a friend in a muffler shop 'swage' me one out of some 3" steel exhaust tubing then trued it up on the lathe at both ends and polished it. This way I'll know if it adds anything like my butt dyno says it does.

If it works I'll turn up a flange out of aluminum and make these by heating #" O.D. ABS plastic and pressing them over the flange to form the bell-mouth then truing up the ends on the lathe.

 

Thanks UrS4. Can't wait to get it installed! =)

 

WOW! looks like it will do nothing, Is this a TDL part