Can anyone make any comment on the attached graph for me?  It appears as though the actual boost pressure is consistently higher than it should be, is this a problem?  Also, is the specified boost level as high as it should be?  Any wisdom will be much appreciated!

 

EDIT: Blue line is specified, red line is actual!

2nd EDIT: This is fourth gear, with a warm engine.

 

Cheers,

Mark

Edited 8 November, 201312 yr by MarkBT

That looks all over the place to me? Were you on and off the throttle? 

 

What is the X & Y axis? which one is rpm? 

That looks all over the place to me? Were you on and off the throttle? 

 

What is the X & Y axis? which one is rpm? 

I think there's a slight lift in there in the middle, hence the little loop!

 

RPM along the bottom, boost up the vertical.

There is only ONE way to get this right, do the same log starting in 3rd gear @ 1500rpm, and log group 11 full throttle right to the redline.

 

That graph and data logging makes no sense to me and I have seen a LOT of group 11 logs!

Fair enough, I'll do a fresh log and see if it's more readable.  Thanks.

This is one I did while having a play. RPM on X axis and Boost on Y, gear change at the very end hence the drop. 

 

I finally remembered to post the better log, all looks well to me, so it turns out I was worrying about nothing!

 

Specified in blue, actual in red! x-axis is rpm.

 

Bonus: go here to see what happens to this trace after a blacksmoke remap...

Edited 22 November, 201312 yr by MarkBT

That looks much better