A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D3 > D3 - Fuel and Exhausts

D3 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

Reply
 
Thread Tools Display Modes
  #11  
Old 16th April 2016, 10:59 PM
H-M3 H-M3 is offline
Senior Member
 
Join Date: Feb 2016
Location: london
Posts: 865
Default tuning box

sorry don't mean to jack this thread, my 4.2tdi has a little box in the engine compartment. its got few switches that you change to fool the ecu i believe? been told they are crap and should just do a remap? any tips guys? NB this tuning box was there when i bought the car.

cheers
Reply With Quote
  #12  
Old 17th April 2016, 06:31 PM
tgm147 tgm147 is offline
Member
 
Join Date: Oct 2014
Location: Wirral
Posts: 43
Default

Quote:
Originally Posted by H-M3 View Post
sorry don't mean to jack this thread, my 4.2tdi has a little box in the engine compartment. its got few switches that you change to fool the ecu i believe? been told they are crap and should just do a remap? any tips guys? NB this tuning box was there when i bought the car.

cheers
Correct. It'll plug into the fuel rail(s) causing the engine ECU(s) to think the fuel rail pressure is lower than it actually is, so that is compensated by raising the pressure in the rail. This gives a power increase and is by no means the proper way to do it at all.

A good remap will always be better.
Reply With Quote
  #13  
Old 17th April 2016, 08:08 PM
H-M3 H-M3 is offline
Senior Member
 
Join Date: Feb 2016
Location: london
Posts: 865
Default Tune box

Cheers, is it easy to remove this box? Can one with basics remove it?
__________________
A8L 3.0 TDI sport executive 2014.
Audi A2 1.4 petrol 2002

SOLD. Audi A8L 4.2TDI Silver 2006

Seat Ibiza 1.4tdi Eco 2008 Silver (£0 Tax)sold

NO VCDS rely on Neeldub
Reply With Quote
  #14  
Old 18th April 2016, 07:36 AM
1781cc 1781cc is offline
Senior Member
 
Join Date: Dec 2015
Posts: 718
Default

A friend of mine has one in his A7 3.0Q - its pretty simple, once you have located it, pull the plugs to the box, and reconnect the plugs that came out onto themselves so all you have left disconnected is the box and the two plugs connected to it (unless you have a single plug version)
__________________
Reply With Quote
  #15  
Old 27th April 2016, 10:39 PM
Rick Rick is offline
Senior Member
 
Join Date: Mar 2016
Location: Ipswich
Posts: 234
Default

Warm start up after mod.
Attached Files
File Type: mp4 20160427_164114.mp4 (73.33 MB, 432 views)
Reply With Quote
  #16  
Old 28th April 2016, 08:54 AM
1781cc 1781cc is offline
Senior Member
 
Join Date: Dec 2015
Posts: 718
Default

Quote:
Originally Posted by Rick View Post
Warm start up after mod.
ooooh, that sounds beastly!
__________________
Reply With Quote
  #17  
Old 28th April 2016, 12:00 PM
Norretal's Avatar
Norretal Norretal is offline
Senior Member
 
Join Date: Nov 2012
Location: County Durham
Posts: 1,480
Default

Nice..........what option did you go for?
__________________



Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should

Audi TT - 2015 - Ultra
Reply With Quote
  #18  
Old 28th April 2016, 04:16 PM
Rick Rick is offline
Senior Member
 
Join Date: Mar 2016
Location: Ipswich
Posts: 234
Default

From the standard headers as i kept the precats, also its an engine out job to upgrade the headers! right back to the standard boxes is all changed. So still options to change the boxes for a deeper/louder sound if i want.
Attached Thumbnails
Click image for larger version

Name:	IMG_2030.jpg
Views:	314
Size:	431.3 KB
ID:	13246  
Reply With Quote
  #19  
Old 29th April 2016, 08:49 AM
Norretal's Avatar
Norretal Norretal is offline
Senior Member
 
Join Date: Nov 2012
Location: County Durham
Posts: 1,480
Default

So that's what it sounds like with both resonators on each side removed

Too loud for me personally, but you said you wanted more growl and you've certainly got that, I hope you're satisfied with your decision? You had new flexis fitted too?
__________________



Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should

Audi TT - 2015 - Ultra
Reply With Quote
  #20  
Old 29th April 2016, 11:16 AM
Rick Rick is offline
Senior Member
 
Join Date: Mar 2016
Location: Ipswich
Posts: 234
Default

Yeah apparently they make a big difference.
I just gave the man my brief of what i wanted and let him crack on.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 01:36 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.