Post by
180fan »
https://forums.nicoclub.com/180fan-u3602.html
Wed Mar 23, 2005 1:11 pm
Oh yeah the SBC-ID. By spike, I'm referring to just before the boost level settles at what you've got it set to, there's a spike beyond what you want the boost to be set at.
Example, the HKS EVC EZ's chart I'm looking at right now, at 4500rpm at a 17psi setting, begins to climb from t=0, at t=1 it's at about 18psi, at t=1.5 it's at 23psi before beginning to level down after 3 seconds, it's at 17psi.
The only thing I can see about the SBC-ID though is that at the targeted 12psi, although not showing spike, does not hold 12psi, it's showing about 13-14psi. At 17psi it begins to show a bit of a spike, but holds 17psi consistantly after reaching 18psi shortly after 1 second (again at 4500 rpm).
The Apexi I wanted to have a look at as it seems to ramp up the boost very well and holds pretty well even at some of the lower boost levels. The Profec B, I wanted to have another look at because of the way it ramps up the boost and holds the boost even more consistantly than the AVC-R.
My thoughts are towards well, what significant changes have HKS, Greddy, Blitz (aren't they releasing a new SBC soon?) and Apexi done to improve the stability of the boost levels, reduce the boost spike, etc.