CLIFFNOTES:
Can I simply make a vacuum line loop around the stock boost solenoid?
For 20 PSI should I be using the heavy spring?
How many turns (approximately) will equal 20PSI?

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I'm going to be installing my Pro RX this weekend. I'll be using the Turbo outlet nipple for the reference port and I have a question regarding the stock boost solenoid.

In order to keep the stock appearance, and not bother with vacuum caps, can't I simply connect one port of the stock boost solenoid to the other? I have an aftermarket turbo inlet pipe with a bung for the stock boost solenoid so instead of capping it, i was thinking of simply making a loop of vacuum line and leaving it as-is.

I seriously doubt that this would cause any problems but is there something I'm missing?

In addition, I SHOULD be using the heavy spring in the RX right? My thinking: stock wastegate actuator is set at 12psi, the light spring can only add 5psi, totalling 17. I'd like to get a solid 20, so I figure I should use the heavy spring.

Any clue on how many turns = 20PSI on the Pro RX?

Thanks for your help

 

I've heard you can make a loop, but I bought some extra caps at autozone.
I used the heavy spring for 20 PSI and it works great.
I have it about 4 1/2 turns....

I hope this helps and good luck!

 

hey dan. thanks for the help. I may just go ahead and pick up some other vacuum caps.

and again, thanks for the insight on the MBC setup!