Quote:
Originally Posted by pikkashoe
Here is one that I can find, particularly post # 2.
http://www.e90post.com/forums/showth...ght=dyno+sheet
Once I get home, I will post the other one's Im at work and cant find them right now.
Now just to let everyone know, im not putting Procede down, its a great product, and I have it and believe in it 100% percent. Im just curious as to what this phenomen is. I have never had a turbo car before. |
That's just slight boost oscillation. In any responsive (ie, small turbo'd) FI system, there will always be a slight boost overshoot followed by a slight undershoot. That's what makes a closed loop boost control system work. You can attempt to avoid this behavior by making the correction steps smaller but you usually sacrifice boost response in the process. Having a +/- 1psi short term oscillation just after spool up is pretty standard in a car tuned to provide max boost response and power.
Shiv