Andy_F wrote:Unless you run high boost on a bigger turbo you can hardly hear the pigeon anyway. I'm running the same boost as Ali on a much larger turbo and you can't hear the chatter over the sound of anything else. You'd need to be running higher boost for a noticable noise, which would probably cause the engine to shit a rod.
turbo size isnt that relevant to chatter anyhow, fiesta RSTs are a fine example, chatter like fook with a cone filter on em, and they got a tiny T2.
those turbos have dumpvalves as standard, thats the thing attatched to the compressor housing, it bypasses the wheel when open, so if thats not blocked off, and it dont look like it is, no wonder it dont chatter
and S13s dont have much chatter even with a cone filter on as...
A- The AFM is restrictive as hell so muffles the noise.
B- The stock inlet pipe is ribbed to help muffle the noise.
Fit a Z32AFM (or MAP sensor managment) and a metal or smooth inlet pipe, and hey presto, loud chatter on you SX.