[urq] ABT ignitionbox

[Keith]

Hi Pat
As I understand it, the stock ecu can not be "chipped" in the modern sense. 
The only mod that can and is made is the addition of a zener diode across a 
couple of pins (I don't know which but there are diagrams on the net) which 
has the effect of preventing the ecu "seeing" full boost. (normally if the 
ecu recognises that full boost is being exceeded it cuts the ignition to 
prevent damage). Not "seeing" full boost means that if a stiffer waste gate 
spring is used then greater boost pressure can be achieved without the 
ignition being cut. The plus is that you can gain a power increase, the 
downside is that this of course can put additional unintended strains on 
components reducing longevity. I believe a 1bar w/gate spring (standard is I 
think 0.8bar) and the zener diode mod provides approx 220hp as opposed to 
the standard 200hp on a WR motor. Your friend could swap it in to his daily 
driver but I am not sure he would see any benefits without an accompanying 
stiffer wastegate spring but others may be better able to advise on this.
Hope this helps.
All the best

Keith

'87 WR



-----Original Message----- 
From: Patrick Carlier
Sent: Friday, September 27, 2013 11:21 AM
To: 'audifans urq'
Subject: [urq] ABT ignitionbox

A friend of mine got himself a wrecked urquattro .
Strted to pull it apart , end he found out that the
ignition box under the glove box has a sticker on it ABT .

So he wants to kow what power gain this box could offer , and if he
can simlply swap it in his other urq wich is a very good daily driver .

I don't know but maybe someone on this list does ?


Pat
_______________________________________________
Audifans urq mailing list
Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
http://www.audifans.com/kb/List_information

Pictures/Polls/Database at: http://autos.groups.yahoo.com/group/urquattro/