View Full Version : Pistion/ CR ? (already searched)

04-12-2005, 10:42 PM
Wondering, do the 1.8 come with forged pistions or cast? I believe that the S4 come with Forged, but I could be wrong (probably am). Also what is the stock compression ratio for the 1.8?
Thanx in advance

04-13-2005, 05:29 AM
C/R changes motor to motor... and there are like 22 1.8t motors...

AEB 9:1 IIRC.. but most 1.8ts are between 9:1 and 9.4:1

I wouldn't be worried about your pistions. They are almost never then problem when a motor blows. Only way a 1.8t piston will get messed up is if your running crazy lean and melt it. Its the rods you need to worry about. They are the weak link.