I've just had my FJ20 turbo rebuilt using a ballbearing housing and a different compressor wheel.
The old wheel was cropped fairly heavily which made it good for top end but a bit laggy.
The new one is not cropped at all and I'm stoked with the response and midrange power but it has really bad compressor surge.
For example when doing about 100km/hr in 5th, if i put my foot down and wait for it to spool up, it gets to a point where the wastegate flutters even though i'm accelerating and the engine shudders. It doesn't do it if I hammer it but when I accelerate slowly it's really bad.
My tuner suggested that my intake might be a bit small (2 1/2")
and about a foot long.
Any ideas???
Thu, 15 September 2005 10:59
