Quote:
|
Originally Posted by cody
It's because the stock boost solenoid is slow to respond. Upgrading to a better solenoid helps, but apparently nothing responds like an MBC.
|
That's because a MBC *can't* respond. It's a spring. And by your log, it looks like it's hooked up incorrectly, because you're still tapering boost at high RPMs. Do you have both the MBC and the EBC hooked up?
Here's what MBC's usually do:
1000 2
1500 3
2000 4
2500 8
3000 14
3500 16
4000 16
4500 16
5000 16
5500 16
6000 16
6500 16
7000 16
And it's that 5500 to 7000 16psi that ends up killing the motor... since that turbo can't put out that sort of boost efficiently at that rate of flow, you end up running really hot.
Also, what are your EGT's running around with a MBC, specifically at partial throttle closed loop 16psi. Your data is from an open loop WOT pull, no? Aren't you concerned about running an MBC w/o changes to your closed loop programming, since it's now possible to hit full boost w/o running with open loop fuel levels?
Call me a stick in the mud, but switching to a MBC is a step backwards IMO. Reeks of the MBC/UniChip days.