Forge BPV Green vs. Blue

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Feb 23, 2011 | 02:46 PM

#26

northvibe

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From: Minnesota

Quote:

Originally Posted by Grishbok

you only want to upgrade the spring if the lowest possible spring is insufficient. Try the green, if its leaking boost/not holding boost, then upgrade. Too strong a spring will surge.

yes very good way to do it. And if you have shims you can add those in as well.

Feb 23, 2011 | 03:05 PM

#27

northvibe

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From: Minnesota

Quote:

Originally Posted by sponge14

Okay, I understand... Just for discussion's sake, since Trifecta tunes are almost always at least 22.5psi, if you use the green, you are guaranteed to be over the 15psi range it lists... How will I know if the green is not working right? Will I not reach 23psi on the boost gauge? Sorry but I am really new to this and do NOT want to screw my turbo up (Or do I??? BNR 2860...) lol. I imagine surge is where the bpv releases and stops consecutively and quickly?

Start with green, you'll get flutter if its to light of a spring. If you get some and have a shim, add a shim and try. still? then move to the next spring.