Tour Through a Modest (& Mostly OEM) Intake System; Intro...
03-12-2008, 09:11 AM
#21
AudiWorld Senior Member
Thread Starter
Re: "AFAUK there is only one version of the VS..."
...Check this out...<ul><li><a href="https://forums.audiworld.com/12v/msgs/18009.phtml">New Stage 3 velocity stack....</a></li></ul>
Last edited by Lago Blue; 08-09-2010 at 07:50 AM.
03-12-2008, 09:26 AM
#23
AudiWorld Senior Member
Thread Starter
I believe this may be a later version...
<center><img src="http://pictureposter.audiworld.com/124134/vs1.jpg"></center><p>...Compare this with "photo 1: The before shot..." above.<ul><li><a href="http://pictureposter.audiworld.com/124134/vs_1_stock_v-stack.jpg">http://pictureposter.audiworld.com/124134/vs_1_stock_v-stack.jpg</a</li></ul>
03-12-2008, 10:13 AM
#24
AudiWorld Senior Member
Thread Starter
BTW, those w/turbos may be interested to know that moving the CAI under the car...
<center><img src="http://5cylinder.com/images/90_IMSA_6.jpg"></center><p>
...fixed this annoying & hazardous problem (the "before" photo at bottom, see also the "after" at link below).
The rear spoiler was now able to be trimmed back (it was eventually replaced by a much cleaner aerodynamically, bi-element wing), & consequently both top speed & fuel milage where improved.
Yes, it was all quite embarrassing for Audi Gmbh, Ingolstadt had an image problem. Even though the fans loved it, the quattros where prancing around, not on four wheels but <i>su due</i> & to make matters worse, they where in effect; RWD!
How could they expect to sell Quattros, let alone FWD sedans Monday to Friday, if they where clearly racing RWD on the week-ends?
It had to be stopped & it was. The cars were eventually banned; the photos remain, but few details where ever revealed.
But now you know the rest of the story of...
...Unintended Levitation.<ul><li><a href="http://alex62.typepad.com/imsablog/images/2007/11/18/audiwreck89.jpg">after photo...</a></li></ul>
...fixed this annoying & hazardous problem (the "before" photo at bottom, see also the "after" at link below).
The rear spoiler was now able to be trimmed back (it was eventually replaced by a much cleaner aerodynamically, bi-element wing), & consequently both top speed & fuel milage where improved.
Yes, it was all quite embarrassing for Audi Gmbh, Ingolstadt had an image problem. Even though the fans loved it, the quattros where prancing around, not on four wheels but <i>su due</i> & to make matters worse, they where in effect; RWD!
How could they expect to sell Quattros, let alone FWD sedans Monday to Friday, if they where clearly racing RWD on the week-ends?
It had to be stopped & it was. The cars were eventually banned; the photos remain, but few details where ever revealed.
But now you know the rest of the story of...
...Unintended Levitation.<ul><li><a href="http://alex62.typepad.com/imsablog/images/2007/11/18/audiwreck89.jpg">after photo...</a></li></ul>
Last edited by Lago Blue; 02-06-2010 at 09:02 PM.
03-13-2008, 07:39 AM
#26
AudiWorld Senior Member
Thread Starter
1.d. Grill...
<center><img src="http://pictureposter.audiworld.com/124134/b4_grill_1.jpg"></center><p>
Grill opening just in front of the air-scoop.
1. Outboard Side: Flashing removed from the trailing edge of the "sawtooth" area. This is right where the horizontal slats attach to the curved profile of the perimeter frame of black plastic.
I'm curious to know why this was made in this fashion, was it for strength; is it a vortex generator, maybe it helps the air through the narrow opening behind the headlight; or does it just make noise to help mask engine intake noise? Otherwise, it certainly looks to be made more complicated than it needs to be. It's quite different from the B3 grill, but very similar to the A4.
What I wanted to do was allow the air to leave the grill in a little cleaner fashion, so I removed the flashing with a little riffler file.
2. Horizontal Slats: here again, removed the flashing on the top sides (only) of the slats, the bottom side was found nicely rounded.
(photo to follow)
Grill opening just in front of the air-scoop.
1. Outboard Side: Flashing removed from the trailing edge of the "sawtooth" area. This is right where the horizontal slats attach to the curved profile of the perimeter frame of black plastic.
I'm curious to know why this was made in this fashion, was it for strength; is it a vortex generator, maybe it helps the air through the narrow opening behind the headlight; or does it just make noise to help mask engine intake noise? Otherwise, it certainly looks to be made more complicated than it needs to be. It's quite different from the B3 grill, but very similar to the A4.
What I wanted to do was allow the air to leave the grill in a little cleaner fashion, so I removed the flashing with a little riffler file.
2. Horizontal Slats: here again, removed the flashing on the top sides (only) of the slats, the bottom side was found nicely rounded.
(photo to follow)
03-13-2008, 07:51 AM
#27
AudiWorld Senior Member
Thread Starter
1.f. Grill...
Scoop Extension:
This curved piece of aluminum fastens to the back of the grill, using the two outboard grill mounting screws.
Its' purpose is to try and guide a little more air into the scoop. My scoop is worn, cracked & actually bent outboard, right where it contacts the back of the grill.
This piece, when the hood is closed, connects the scoop face to the grill, over to the first vertical post. Previously, my scoop only reached about half way there (to the edge of the "q" on the "quattro" badge).
(photo to follow)
This curved piece of aluminum fastens to the back of the grill, using the two outboard grill mounting screws.
Its' purpose is to try and guide a little more air into the scoop. My scoop is worn, cracked & actually bent outboard, right where it contacts the back of the grill.
This piece, when the hood is closed, connects the scoop face to the grill, over to the first vertical post. Previously, my scoop only reached about half way there (to the edge of the "q" on the "quattro" badge).
(photo to follow)
03-13-2008, 07:58 AM
#28
AudiWorld Senior Member
Thread Starter
2. Scoop...
Scoop Mount:
My scoop was being held slightly closed, & being bent by, a bracket for the A/C condensor (non-OEM?), behind the scoop. Bent the bracket out of the way of the scoop, loosened the top front scoop mounting screw, adjusted scoop & re-tightened.
Not that this really made the scoop much larger, but more importantly in my view, was that it also widened the narrow gap behind the headlight housing & the rear wall of the scoop/bucket.
(photo to follow)
My scoop was being held slightly closed, & being bent by, a bracket for the A/C condensor (non-OEM?), behind the scoop. Bent the bracket out of the way of the scoop, loosened the top front scoop mounting screw, adjusted scoop & re-tightened.
Not that this really made the scoop much larger, but more importantly in my view, was that it also widened the narrow gap behind the headlight housing & the rear wall of the scoop/bucket.
(photo to follow)
03-13-2008, 08:20 AM
#29
AudiWorld Senior Member
Thread Starter
3. Bucket...
<center><img src="http://pictureposter.audiworld.com/124134/b4_bucket_.jpg"></center><p>
Headlight Bucket:
Sealed all the openings as per one of Mance's old CAI threads (see below). I used a temporary weather-stripping caulking (wear gloves!), tape & some plastic plugs, all available locally.
The above photo shows why you best use gloves. Have a look inside the snorkel & noise damper also; no their not painted grey.
Compare this with all the gaps to be seen in the photo at "5. Filter-box/Bucket Seal:" two threads down.<ul><li><a href="https://forums.audiworld.com/12v/msgs/8454.phtml">https://forums.audiworld.com/12v/msgs/8454.phtml</a</li></ul>
Headlight Bucket:
Sealed all the openings as per one of Mance's old CAI threads (see below). I used a temporary weather-stripping caulking (wear gloves!), tape & some plastic plugs, all available locally.
The above photo shows why you best use gloves. Have a look inside the snorkel & noise damper also; no their not painted grey.
Compare this with all the gaps to be seen in the photo at "5. Filter-box/Bucket Seal:" two threads down.<ul><li><a href="https://forums.audiworld.com/12v/msgs/8454.phtml">https://forums.audiworld.com/12v/msgs/8454.phtml</a</li></ul>
03-13-2008, 08:36 AM
#30
AudiWorld Senior Member
Thread Starter
4. Filter-box Mounts:
These are the 2 rubber grommets in the fender-well that receive the Filter-box mounting pins.
If they are missing, the Filter-box to Bucket seal cannot be properly maintained. I suspect these are lost during Filter-box installation, as all 3 Audi's I've owned had one missing.
Use "Simple Green" liquid detergent on the grommets' face & bore, then mounting the box is a little easier & the grommets are not pushed through into who knows where?
If they are missing, the Filter-box to Bucket seal cannot be properly maintained. I suspect these are lost during Filter-box installation, as all 3 Audi's I've owned had one missing.
Use "Simple Green" liquid detergent on the grommets' face & bore, then mounting the box is a little easier & the grommets are not pushed through into who knows where?