Quote:
Originally Posted by scalbert
Actually, stock can spike about 1 PSI over what it settles to; better remove the DME until BMW gets it right. 
A Spike to 15 PSI for 0.25 seconds and settling to 13 PSI is not an issue. All tunes do this it is just that none of the others offer the data logging to make it visible. A problematic spike would be one where it shoots to 18+ PSI; this is not the case here. In fact, I have never seen a altered turbe vehicle that did not have some sort of spike; including some runing MBC's only. |
You may be right about this "spike" but AGAIN, LOOK at my post here: #15
http://www.e90post.com/forums/showthread.php?t=108812. That is NOT a "spike" in my book.
Those "spikes" are a helluva lot longer than .25 seconds and in total between 41-47 seconds it accounts for about 1-1.25 sec where my boost os over 15!! AND,...it never settles to 13psi as you describe!
I'm getting a bit frustrated now and will post MULTIPLE graphs later today showing this is NO SPIKE!! Even at 88% I have HIGHER BOOST!