Anyone know the specs on the stock S4 fuel system........
03-29-2002, 10:48 PM
#1
AudiWorld Super User
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Anyone know the specs on the stock S4 fuel system........
How much can the fuel pump flow maximally and at what pressure? What is the max flow for the injectors?
04-01-2002, 11:51 AM
#3
A4 fuel pump can flow 28.5 gal/hour at 4.0bar. The S4 fuel pump can flow (drum roll)
38.1 gallons per hour around 4.0 bar at 13V pump voltage. I haven't opened up an S4 tank, but it looks like the pump housing is the same (hint hint 1.8T folks) ;P
04-03-2002, 08:46 AM
#6
I haven't seen an S4 pump in person, but they use the same tool to extract it from the baffle...
The pictures of the bare pumps look identical. However, it is probably cheaper to install an aftermarket one with high flow rates if one where going that route, unless there was a wrecked S4 around 
Swapping the tanks is possible but that means dropping the rear subframe to remove the tank
Swapping the tanks is possible but that means dropping the rear subframe to remove the tank
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