Preliminary info: Buehn Engineering K04.24 and VAST performance mods/ installation
04-25-2005, 04:28 PM
#1
AudiWorld Super User
Thread Starter
Join Date: Jun 2002
Posts: 12,088
Likes: 0
Received 0 Likes
on
0 Posts
Preliminary info: Buehn Engineering K04.24 and VAST performance mods/ installation
<center><img src="http://pictureposter.audiworld.com/38083/inlet.jpg"></center><p>
Bottom Line:
24.5psi from 2900rpm to redline / 3.6 FATS on pump gas with a bad coil. (stutter stutter stutter).
First off, Mike Shimon (Piggie / VAST) is amazing. Watching him work is like watching a symphony. While he's working on one thing he's planning out his next move so not a second is wasted. I actually earned my ASE certification as a tech while working my way through college and I had no chance of keeping up with the guy.
The following VAST mods were performed:
VAST Performance Clutch
255LPH Fuel Pump
Snub Mount
5Bar FPR
EFK
The VAST clutch is absolutely amazing. It's a 2400# unit that is amply sprung and sports a hybrid disc. It drives ultra-smooth with a light pedal and grips like a ****. In all my years of driving cars with performance clutches, I never thought a clutch like this was possible. FWIW Mike's clutches also have the self-adjuster removed so they should not suffer the same fate as Spec.
In addition to that, Mike corrected a few issues brought about by the multiple motor pulls my car has endured at the hands of the dealership. Mike also installed a Stasis 4:1 diff, which makes my EDL defeat almost redundant.
I wanted to hold off posting until I was sure what my problem was, I had misfires on one bank but they were so sparse that I couldn't pick out any of the three cylinders with any certainty, so I wasn't sure it was a coilpack. Now I found it, swapped it with another and watched the problem move... it's a pack.
As far as my normal graphs/charts go: I'm not nearly done yet. I will be putting in an 88mm Buehn Engineering MAF (works for Hitachi and Bosch), so I can adjust my A/F a bit more and gain some flow.
On to the pictures: On the top picture Mike cut the K04 inlets with his chop-saw and clamped them to the K24 inlets using a high-temp silicone hose. The diverters were retained since they're glued inside the tube.
The bottom pictures are of Jacobs work
Notice the taper in the inlet.
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore003.jpg" alt="Image hosted by Photobucket.com">
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore014.jpg" alt="Image hosted by Photobucket.com">
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore002.jpg" alt="Image hosted by Photobucket.com">
Clearanced Exhaust side:
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore013.jpg" alt="Image hosted by Photobucket.com">
Jacobs awesome porting:
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore008.jpg" alt="Image hosted by Photobucket.com">
Bottom Line:
24.5psi from 2900rpm to redline / 3.6 FATS on pump gas with a bad coil. (stutter stutter stutter).
First off, Mike Shimon (Piggie / VAST) is amazing. Watching him work is like watching a symphony. While he's working on one thing he's planning out his next move so not a second is wasted. I actually earned my ASE certification as a tech while working my way through college and I had no chance of keeping up with the guy.
The following VAST mods were performed:
VAST Performance Clutch
255LPH Fuel Pump
Snub Mount
5Bar FPR
EFK
The VAST clutch is absolutely amazing. It's a 2400# unit that is amply sprung and sports a hybrid disc. It drives ultra-smooth with a light pedal and grips like a ****. In all my years of driving cars with performance clutches, I never thought a clutch like this was possible. FWIW Mike's clutches also have the self-adjuster removed so they should not suffer the same fate as Spec.
In addition to that, Mike corrected a few issues brought about by the multiple motor pulls my car has endured at the hands of the dealership. Mike also installed a Stasis 4:1 diff, which makes my EDL defeat almost redundant.
I wanted to hold off posting until I was sure what my problem was, I had misfires on one bank but they were so sparse that I couldn't pick out any of the three cylinders with any certainty, so I wasn't sure it was a coilpack. Now I found it, swapped it with another and watched the problem move... it's a pack.
As far as my normal graphs/charts go: I'm not nearly done yet. I will be putting in an 88mm Buehn Engineering MAF (works for Hitachi and Bosch), so I can adjust my A/F a bit more and gain some flow.
On to the pictures: On the top picture Mike cut the K04 inlets with his chop-saw and clamped them to the K24 inlets using a high-temp silicone hose. The diverters were retained since they're glued inside the tube.
The bottom pictures are of Jacobs work
Notice the taper in the inlet.
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore003.jpg" alt="Image hosted by Photobucket.com">
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore014.jpg" alt="Image hosted by Photobucket.com">
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore002.jpg" alt="Image hosted by Photobucket.com">
Clearanced Exhaust side:
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore013.jpg" alt="Image hosted by Photobucket.com">
Jacobs awesome porting:
<img src="http://i2.photobucket.com/albums/y49/BuehnEng/Mike%20Moore/MikeMoore008.jpg" alt="Image hosted by Photobucket.com">
04-25-2005, 04:43 PM
#6
AudiWorld Super User
Thread Starter
Join Date: Jun 2002
Posts: 12,088
Likes: 0
Received 0 Likes
on
0 Posts
It's very noticable... Before I'd have a stumble now and again, at 24#+ it stutters like crazy...
No biggie, I should have some new coils in a day or two. It's brutally fast even with the stumbling cylinder!
