Originally Posted by
Pandauk
Would be nice to know full spec as i think previous owner talked out of his arse a bit, to behonest the car has always suffered from lag so not a really nice engine to drive as such but just put it down to the low comp and the t38, would like to get another turbo in the future.
Mates 200sx is higher comp in the high 8's and is so much more responsive.
A decent mapping session can make a world of difference to off boost drive-ability and pick up, even if the RR graph doesn't show it.
Accuracy of readings isn't that important, use the same one always, it's more CONSISTENCY that matters.
The rollers I use are recalibrated when needed, but agree with the engine dyno they have anyway.
Re the swirl pot, the air that is created under driving, esp boost will be piped back the way it is at the mo.
There may be reasons other than high comp why the SX is more responsive, but the cr certainly does make a difference, mine is hopefully nearer 8.2:1 now.
tabetha