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Old 11-23-2005, 10:14 AM   #28
Steve E
Scooby Newbie
Member#: 300
Join Date: Sep 1999
Chapter/Region: NESIC
Location: New Milford,CT US
2002 WRX
Aspen White


Dragging this back up...

I have been dealing with fluctuating boost due to weather with the stock BCS for long enough so I bought one of the GM solenoids.

I installed it with the 10 ohm resistor and new vacuum line. My boost was spiky and wavy while at the same time, I had values of 450 in my UTEC and could hardly hit 1 bar on my VF30.

I installed the Vacu-Tite vacuum restrictor and that helped the fluctuation and spikes and peak boost a lot. Now, I have values of 425 and am hitting 18psi with fast spool, and little spiking. The bad part is that is is still a little wavy. I can see up to a 2psi fluctuation.

My boost gain is at 75 now (highest value I've ever run) and its getting better but I feel like I am running our of room (boost values high and gain high). I am going to try a gain value of 80 but this seems silly...

Anyone else experience this? Any suggestions?
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