A4 (B7 Platform) Discussion Discussion forum for the B7 Audi A4 produced from 2005-2008.5

2.0 TFSI engine boosting question

Old 07-26-2007, 05:02 AM
  #1  
New Member
Thread Starter
 
Tepe's Avatar
 
Join Date: Sep 2005
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default 2.0 TFSI engine boosting question

Hello all! Is there anyone who can teel me, where to find the boost control valve on the TFSI engine? I'm talking about the valve where ECUs turbo pressure sensor is located. Has anybody tried to install bleed valve into the circuit before the sensor, so you could fool the ECU to get higher boost? I have done it few years ago with Volvos and it worked fine. I could get max. twice the normal boost pressure compared to orginal. My current car is so called sport edition version with orginal 220PS and it's chipped to 260PS, but I need to get more. Can this procedure been done on TFSI engine? If it's possible, I just want to try what is the effect because with Volvos turbo engine the effect was huge.
Old 07-26-2007, 05:06 AM
  #2  
AudiWorld Member
 
pierranchis's Avatar
 
Join Date: Feb 2007
Posts: 366
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 2.0 TFSI engine boosting question

when you do find it, and run the procedure, let me know how it runs. i heard that trick works fine on vw's. the 1.8t's for sure unchipped..
Old 07-26-2007, 06:22 AM
  #3  
AudiWorld Super User
 
maaliish's Avatar
 
Join Date: Oct 2000
Posts: 8,778
Likes: 0
Received 0 Likes on 0 Posts
Default Don't do it. Your chip is "only" pushing that much boost for a reason.

You could squeeze a few more psi out of it but unless you have an FMIC and other cooling mods its just not worth it. You're not going to get double of the original boost on a stock turbo, your fueling will give you problems and whatever extra boost spike you'll get at mid rpms, will dissipate quickly because your turbo is not capable of flowing that much more at higher rpms.

BUT hey, its your car.
Old 07-26-2007, 07:50 AM
  #4  
Member
 
Uncle Kraut's Avatar
 
Join Date: Jun 2006
Location: Regensburg, Germany
Posts: 425
Likes: 0
Received 0 Likes on 0 Posts
Default I would just drop the cash for APR/GIAC

It'd be less expensive than the repairs in the future...
Old 07-27-2007, 07:04 PM
  #5  
AudiWorld Member
 
LewTurboB5A4's Avatar
 
Join Date: Jun 2007
Posts: 556
Likes: 0
Received 0 Likes on 0 Posts
Default

Dont do that to your baby!!! Spend the loot and do it right.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kanahootie
2.7T V6 Discussion
1
07-17-2008 03:02 PM
biturbopassat
S4 / RS4 (B5 Platform) Discussion
0
01-07-2008 12:36 AM
sozdemir
A4 (B5 Platform) Discussion
6
10-06-2005 04:42 AM
audi4k
Audi 5000 / 200 / V8 Discussion
8
10-02-2005 08:35 PM
Wild1.8T
A4 (B5 Platform) Discussion
8
08-13-2002 08:05 AM


Thread Tools
Search this Thread
Quick Reply: 2.0 TFSI engine boosting question



All times are GMT -8. The time now is 06:00 PM.