Stock boost levels on KG engine
Christo Atanasov
quattro at elit-auto.com
Wed Jun 8 04:47:40 EDT 2005
Some one has info about exact boost level for these engines?
I found this in archives, but no info about boost.
http://www.audifans.com/archives/1998/12/msg01338.html
Yesterday I attached some pretty accurate boost meter and I saw that I have about 0.5 bars overpressure (~1.5 absolute) but with wastegate pressure hose disconnected. I think that this is because of my Frankenstein ignition system (mechanical+vacuum advance/retard, because I have a 5 window hall trigger wheel instead of one - modification made by previous owner, and almost impossible for me to find 1 window trigger wheel or even a whole distributor for reasonable amount in my region), but today I realize that I have about 0.3bar @3000rpm and 0.5 later about 4000rpm, so I think that maybe wastegate spring in this car is weaker and is designed to hold around 0.3-0.4 bars only.
For now I'll try to make 1 window trigger wheel in order to resurrect original ECU controlled ignition, but it is not so easy.. in fact I have done one by modifying trigger wheel with 5 holes, but I didn't mach right material, so I see 1 window, but hall sender saw 5 :)
Regards,
Christo Atanasov
'85 Audi 200 2.1 Ti (KG engine)
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