Disconnecting the BPS on sw20 turbo

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Postby Al » Mon Jun 07, 2004 7:32 pm

Simple as mate depending on how much you wanna spend. My Greddy Profec B can get stupidly close to the fuel cut without overboosting and hitting it, i got mine 2nd hand so it was a bit of a deal, or you coul just get a cheap bleed valve.

Basically the hose that goes from the compressor outlet to your actuator you plumb your bleed valve in there. And the other hose that comes out of the actuator and to the t/vsv, cut that and plumb up both ends leaving it disconnected. You now have adjustable boost. BTW fuel cut is near 13psi.
85 Corolla GT - 08 Blade Master G
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Postby mister two » Tue Jun 08, 2004 10:16 am

so the because i had the t intersection unblocked it was bleeding and that is why i was getting 10 pound?.

will the removal of the line off the wastegate to the vsv alone do anything or do i need to get the bleed valve(same as a boost controller?) as well?

cheers for the help.
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Postby Al » Tue Jun 08, 2004 8:09 pm

mister two wrote:will the removal of the line off the wastegate to the vsv alone do anything or do i need to get the bleed valve(same as a boost controller?) as well?

cheers for the help.


Just cutting and plumbing up the VSV line locks you into low boost, should be around 7psi. You have to use a bleed valve/ebc on the other line from the compressor outlet to the actuator.
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