AudiForums.com

S Car Model Line Audi S4, Audi S6, and Audi S8..Audi's track-ready touch on each of the popular sedans

Stock boost is?

Thread Tools
 
Search this Thread
 
Old Jul 12, 2007 | 01:32 PM
Share
  #1  
2000S4's Avatar
Thread Starter
|
1st Gear
Joined: Nov 2006
Posts: 194
From:
Default Stock boost is?
What is stock boost on the B5 S4? PSI wise
 
Reply
Old Jul 12, 2007 | 01:40 PM
Share
  #2  
Brandon2000s4's Avatar
1st Gear
Joined: Aug 2006
Posts: 261
From: Wilmington NC
Default RE: Stock boost is?
Mine is around 12.2 psi stock.
 
Reply
Old Jul 12, 2007 | 06:06 PM
Share
  #3  
SilverAudiS4's Avatar
1st Gear
Joined: Jul 2007
Posts: 170
From:
Default RE: Stock boost is?
What is the maximum boost these motors can run with stock fuel?
 
Reply
Old Jul 12, 2007 | 08:35 PM
Share
  #4  
2k S4's Avatar
3rd Gear
Joined: Apr 2006
Posts: 2,948
From: Tacoma, WA
Default RE: Stock boost is?
Stock is 10psi.

With the K03's it's not fuel but the turbo's that give up. You don't really get any more CFM pushing them at much over 19psi.
 
Reply
Old Jul 13, 2007 | 02:32 AM
Share
  #5  
Stuckeyman87's Avatar
1st Gear
Joined: Jul 2007
Posts: 24
Default RE: Stock boost is?
the apr 93 octane chip runs 14.5 psi and the giac chip runs 17 psi, correct?
 
Reply
Old Jul 13, 2007 | 07:16 AM
Share
  #6  
SilverAudiS4's Avatar
1st Gear
Joined: Jul 2007
Posts: 170
From:
Default RE: Stock boost is?
Side question? How many wastgates are on these cars? Is it just one for each turbo? Or is there a third that is making sure there is not too much boost coming from the two combined turbos?
 
Reply
Old Jul 13, 2007 | 12:30 PM
Share
  #7  
GeilKyle2's Avatar
Joined: Jul 2005
Posts: 578
From:
Default RE: Stock boost is?
There is 2 wastegates, one for each turbo
 
Reply
Old Jul 13, 2007 | 03:07 PM
Share
  #8  
SilverAudiS4's Avatar
1st Gear
Joined: Jul 2007
Posts: 170
From:
Default RE: Stock boost is?
So if stock psi is 10 then each one is set at? 5? Is there anyway to change this on the wastegate without a boost controler?
 
Reply
Old Jul 13, 2007 | 10:28 PM
Share
  #9  
2k S4's Avatar
3rd Gear
Joined: Apr 2006
Posts: 2,948
From: Tacoma, WA
Default RE: Stock boost is?
ORIGINAL: SilverAudiS4
So if stock psi is 10 then each one is set at? 5? Is there anyway to change this on the wastegate without a boost controler?
It doesn't add up, they both put out the same PSI. The reason for 2 is to increase CFM.

No matter what you do, the N75 will cut the boost to what the ECU request.
 
Reply
Old Jul 14, 2007 | 01:16 AM
Share
  #10  
SilverAudiS4's Avatar
1st Gear
Joined: Jul 2007
Posts: 170
From:
Default RE: Stock boost is?
oh okay, that makes sense, i figured it just added up from both turbos. is there anyway to trick the car to add more boost? or would that require a fuel controler as well...?
 
Reply



Advanced Search

All times are GMT -4. The time now is 03:36 AM.