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07-10-2002, 03:32 PM | #1 |
Scooby Newbie
Member#: 14124
Join Date: Jan 2002
Location: Long Lake, MN
Vehicle:2002 WRX Wagon Silver |
Improving the factory boost solenoid - part 2
Okay, after tracking/reading all the posts and comments that followed my original thread on the 3/16" restrictor that leads to the factory solenoid (originally brought to all of our attention by the BoostMonkey folks), I decided to REMOVE my larger 3/16" restrictor and replace it with my original factory restrictor - which is somewhat smaller.
Here is what I noticed upon the change: The responsiveness of the car did diminish somewhat at lower rpms, and my boost gauge indicated probably between .7 and 1 pound less boost. Pulling from 2500 rpm in fourth gear was less dramatic, BUT higher rpm boost stayed around longer, and I got smoother boost performance with less spiking. My car had previously pulled timing due to spikes of around 16-17 psi (no other mods). I now again get that satisfying pull right up through until about 6300 rpm, whereas before it seemed to taper noticeably at 6000 rpm. I did NOT reset my ECU when making this change. I'll leave the factory restrictor in, and drive it for a while to see if the ECU ends up doing something funny. Anybody else have an experience that compares?
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07-10-2002, 03:35 PM | #2 |
Scooby Specialist
Member#: 6049
Join Date: Apr 2001
Chapter/Region:
MWSOC
Location: Jenison.Doomhammer
Vehicle:02 WRX & 99 RS Black |
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07-16-2002, 12:56 AM | #3 |
Scooby Newbie
Member#: 3474
Join Date: Jan 2001
Chapter/Region:
MWSOC
Vehicle:2013 WRX |
Did you use a 3/16" restrictor or a 3/16" connector. And I thought you already compared both of them about a half hour apart or something two months ago on that other thread and you had nothing but good to say then I believe. What differences did you notice between the two separate tests?
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