URQ MAC ECU questions

[Mihnea Cotet]

Fellow listers,

One of my friends who owns an 83 ur-quattro would like his car to have some
more horsepower....the car's engine (WR) has been recently completely
stripped and rebuilt and it already has a ported and polished head and a
"cam"....no one seems to know what brand the cam is but it doesn't even
matter...
I've seen on Phil Payne's website that, in order to be able to increase
boost pressure on a WR engine, one must install a voltage divider on the
Pressure Transducer in the ECU. I suppose this implies the same kind of
thing as the resistor or the zener-mod for later Audi ECUs....what values
could be used in order to have a slight increase in pressure? What's the
best choice? Zener/resistor or resistor alone?

Any BTDTs on this one?


As always, TIA


Regards from Belgium,

Mihnea

'85 -OOOO- Coupe quattro

http://www.audifans.com/registry/view.php?action=viewCar&carid=350